Intel AP440FX User Manual

AP440FX Motherboard

Technical Product Specification

May, 1997

Order Number 281830-002

The AP440FX motherboard may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized

errata are documented in the AP440FX Motherboard Specification Update.

Table of Contents

1 Motherboard Description

1.1 Overview......................................................................................................................7

1.2 Motherboard Manufacturing Options ...........................................................................9

1.3 Form Factor .................................................................................................................9

1.4 I/O Shield...................................................................................................................10

1.5 Microprocessor ..........................................................................................................11

1.5.1

1.5.2

Microprocessor Upgrade .............................................................................11

Microprocessor Heatsink and Clips .............................................................11

1.6 Main System Memory ................................................................................................12

1.6.1

1.6.2

DRAM..........................................................................................................12

Parity and ECC DRAM ................................................................................12

1.7 Chipset ......................................................................................................................12

1.7.1

1.7.2

1.7.3

1.7.4

1.7.5

1.7.6

82441FX PCI Bridge and Memory Controller (PMC) ...................................12

82442FX Data Bus Accelerator (DBX) ........................................................13

82371SB PCI/ISA IDE Xccelerator (PIIX3)..................................................13

IDE Support.................................................................................................14

Secure Flash Support..................................................................................14

USB Support ...............................................................................................14

1.8 PC87307 Super I/O Controller...................................................................................15

1.8.1

1.8.2

1.8.3

1.8.4

1.8.5

Floppy Controller .........................................................................................15

Keyboard and Mouse Interface ...................................................................15

Real-Time Clock, CMOS RAM and Battery .................................................16

Infrared Support ..........................................................................................16

Parallel Port.................................................................................................16

1.9 Graphics Subsystem..................................................................................................16

1.9.1

1.9.2

1.9.3

1.9.4

S3 ViRGE Graphics Subsystem ..................................................................17

S3 ViRGE/DX Graphics Subsystem ............................................................18

LBP VESA Feature Connector ....................................................................18

Graphics Drivers and Utilities ......................................................................18

1.10 Audio Subsystem.......................................................................................................19

1.11 Management Extension Hardware.............................................................................19

1.12 Motherboard Connectors...........................................................................................20

1.12.1 Front Panel Connectors...............................................................................22

1.12.2 Memory/Expansion Connectors...................................................................25

1.12.3 VESA Feature Connector............................................................................27

1.12.4 Serial Header ..............................................................................................27

1.12.5 Audio Connectors........................................................................................28

1.12.6 Power Supply Connectors...........................................................................29

1.12.7 Floppy/IDE Connectors ...............................................................................30

1.12.8 Back Panel Connectors...............................................................................32

1.13 Jumper Settings.........................................................................................................35

1.13.1 Microprocessor Configuration (J4L2)...........................................................36

1.13.2 Motherboard Configuration (J4L2, J1J1) .....................................................36

1.14 Reliability ...................................................................................................................37

iii

AP440FX Motherboard Technical Product Specification

1.15 Environmental............................................................................................................38

1.16 Power Consumption ..................................................................................................38

1.16.1 Power Supply Considerations .....................................................................39

1.17 Regulatory Compliance..............................................................................................39

1.17.1 Safety..........................................................................................................39

1.17.2 EMI..............................................................................................................40

1.17.3 Product Certification Markings.....................................................................40

2 Motherboard Resources

2.1 Memory Map..............................................................................................................41

2.2 I/O Map......................................................................................................................42

2.3 Soft-Off Control..........................................................................................................43

2.4 PCI Configuration Space Map ...................................................................................43

2.5 DMA Channels...........................................................................................................43

2.6 Interrupts ...................................................................................................................44

3 Motherboard BIOS and Setup Utility

3.1 Introduction................................................................................................................45

3.2 BIOS Flash Memory Organization .............................................................................45

3.3 BIOS Upgrades..........................................................................................................45

3.4 PCI IDE Support ........................................................................................................46

3.5 PCI Auto-Configuration..............................................................................................46

3.6 ISA Plug and Play......................................................................................................47

3.7 Desktop Management Interface (DMI).......................................................................47

3.8 Advanced Power Management (APM).......................................................................48

3.9 Advanced Power Control (APC) ................................................................................48

3.10 Language Support.....................................................................................................49

3.11 Boot Options..............................................................................................................49

3.12 Flash LOGO Area......................................................................................................49

3.13 Setup Enable Jumper ................................................................................................49

3.14 Overview of the Setup Menu Screens .......................................................................49

3.14.1 Main BIOS Setup Screen ............................................................................50

3.14.2 Floppy Options Subscreen ..........................................................................51

3.14.3 IDE Device Configuration Subscreen ..........................................................52

3.14.4 Boot Options Subscreen .............................................................................54

3.14.5 Advanced Screen........................................................................................56

3.14.6 Event Logging Configuration.......................................................................57

3.14.7 Peripheral Configuration Subscreen............................................................57

3.14.8 Advanced Chipset Configuration Subscreen...............................................61

3.14.9 Power Management Configuration Subscreen............................................63

3.14.10 Plug and Play Configuration Subscreen......................................................64

3.14.11 Event Logging Configuration.......................................................................66

3.14.12 Security Screen...........................................................................................68

3.14.13 Security Screen Options..............................................................................68

3.14.14 Exit Screen..................................................................................................69

Contents

4 Error Messages and Beep Codes

4.1 BIOS Beep Codes .....................................................................................................71

4.2 PCI Configuration Error Messages ............................................................................71

4.3 BIOS Error Messages................................................................................................73

4.4 ISA NMI Messages....................................................................................................74

Figures

Motherboard Features .................................................................................................8

Motherboard Dimensions.............................................................................................9

Back Panel I/O Shield Dimensions ............................................................................10

Motherboard Connector Locations.............................................................................21

Front Panel I/O Connectors.......................................................................................22

Fan Connector Usage................................................................................................24

I/O Connections.........................................................................................................32

Jumper Locations ......................................................................................................35

Tables

Key to Motherboard Features......................................................................................8

S3 ViRGE Supported Resolutions .............................................................................17

S3 ViRGE/DX Supported Resolutions .......................................................................18

Front Panel I/O Connector (J2A1) .............................................................................22

Keylock Connector (J3A1) .........................................................................................24

Auxiliary Fan Connector (J4A1).................................................................................24

PCI/ISA Riser Connector (J6J2) ................................................................................25

LBP VESA Feature Connector (J1K1).......................................................................27

Serial Port (COM2H, J3N1) Pinout ............................................................................27

10. CD-ROM Connector (J9N1).......................................................................................28

11. Wavetable Upgrade Connector (J9L1) ......................................................................28

12. Telephony Connector (J9K1).....................................................................................28

13. Primary Power Supply Connector (J9H1) ..................................................................29

14. External 3.3 V Power Supply Connector (J9J1)........................................................29

15. Soft-Off Power Supply Connector (J9F1)...................................................................30

16. Floppy Drive Connector (J8L1)..................................................................................30

17. IDE Connectors (J8H1, J9H2) ...................................................................................31

18. VGA Video Connector (J1N1)....................................................................................32

19. Serial Port Connector Pinout .....................................................................................33

20. USB Connector Pinout...............................................................................................33

21. PS/2 Keyboard/Mouse Connector Pinout ..................................................................33

22. Parallel Port Connector Pinout...................................................................................34

23. Microprocessor/System Speed Settings ....................................................................36

24. Configuration Jumper Settings...................................................................................37

25. Motherboard Environmental Specifications................................................................38

26. Power Usage .............................................................................................................38

27. DC Voltage ................................................................................................................39

28. Memory Map..............................................................................................................41

29. I/O Map......................................................................................................................42

30. PCI Configuration Space Map ...................................................................................43

31. DMA Channels...........................................................................................................43

AP440FX Motherboard Technical Product Specification

32. Interrupts ...................................................................................................................44

33. Flash Memory Organization.......................................................................................45

34. Recommendations for Configuring an ATAPI Device ................................................46

35. Overview of the Setup Menu Screens .......................................................................50

36. Serial Port Configuration Options ..............................................................................58

37. Parallel Port Configuration Options............................................................................59

38. ECP - Compatible Configuration Options...................................................................60

39. Event Log Subscreens...............................................................................................67

40. Administrative and User Password Functions............................................................68

41. BIOS Beep Codes .....................................................................................................71

42. PCI Configuration Error Messages ............................................................................71

43. Chained PCI Error Messages ....................................................................................72

44. BIOS Error Messages................................................................................................73

45. ISA NMI Messages....................................................................................................74

1 Motherboard Description

1.1 Overview

The AP440FX motherboard is a 64-bit, high-performance, mixed-voltage, energy-conscious,

highly integrated platform. The AP440FX motherboard supports the following set of features:

•

Uses a 9-inch by 13-inch LPX form factor.

Uses a type 8 Zero Insertion Force (ZIF) socket to house the standard processor, and provides

an upgrade path to future OverDrive^®processors.

•

Accepts Pentium^®Pro processors with core clock frequencies of 150 MHz, 166 MHz,

180 MHz, and 200 MHz.

Supports up to 128 MB of DRAM using four standard 72-pin, tin-lead SIMM^†sockets. The

modules can use Fast Page Mode (FPM) or Extended Data Out (EDO) memory. Non-parity

(32-bit) and parity (36-bit) memory SIMMs are supported. With parity SIMMs, the board can

be configured to support Error Checking and Correcting (ECC) memory operation.

•

Uses Intel's 82440FX chipset. The Intel 82371SB PCI/ISA IDE Xccelerator (PIIX3) provides

an integrated Bus Mastering IDE controller with two high performance IDE interfaces for up to

four devices (such as hard drives or CD-ROM).

Uses a flash BIOS with the following features:

− Uses both hardware and software Secure Flash features to protect flash contents from

corruption.

− Uses a BIOS that complies with the Desktop Management Interface (DMI-compliant).

Uses the National Semiconductor Super I/O controller (the PC87307 or the pin-compatible

PC87308 device) to integrate the following standard PC I/O functions:

•

floppy interface, two FIFO serial ports and one EPP/ECP capable parallel port

real-time clock

keyboard controller

support for an IrDA^†and Consumer Infrared interface at both slow and medium speeds

•

Integrates a Crystal audio codec (CS4236) on the motherboard to provide 16-bit stereo, Sound

Blaster^†Pro compatible audio. Provides an onboard telephony (modem) connector to support

the latest telephony applications.

Integrates an S3^†ViRGE/DX^†graphics controller onboard to support SVGA graphics at

resolutions up to 1600x1200. An enhanced LBP VESA^†feature connector supports external

multimedia capabilities.

A hardware monitoring ASIC provides the following monitoring functions:

Integrated temperature sensor

Fan speed monitoring

Power supply voltage monitoring

Storage of power-on self test (POST) results and error codes

•

PCI and ISA expansion slots are supported by a connector on the motherboard designed to

accept a riser card. An onboard jumper supports riser cards with either two or three PCI slots.

AP440FX Motherboard Technical Product Specification

C D E

AA Z

OM06178

Figure 1. Motherboard Features

Key to Motherboard Features

Table 1.

Key Description

VGA^†connector

Serial port connector

Side-by-side USB connectors

PS/2^†mouse connector

I/O Controller (U7M1)

Crystal audio controller (U9M1)

Floppy connector (J8L1)

PS/2 keyboard connector

Microphone input jack

Parallel port connector

Audio output jack

CD-ROM header (4x1, J9N1)

Wavetable header (2x4, J9L1)

Standard 3.3V power connector (J9J1)

Telephony (modem) header (2x2,

J9K1)

Main power connector (J9H1)

Hardware monitor ASIC (U9C1)

Onboard speaker (L9A1)

IDE connectors (J8H1, J9H2)

Flash BIOS (E28F002, U8C1)

3.5 V processor jumper (J8A2)

Auxiliary fan header (1x3, J4A1)

Soft Off header (3x1, J9F1)

Real-time clock battery (BT9B1)

SIMM sockets (J6J1, J7J1, J7J2, J7J3)

Intel SB82371SB (PIIX3, U6E1)

AA Keylock header (3x1, J3A1)

BB Front panel connector (J2A1)

EE Intel SB82442FX (DBX, U2F1)

CC Processor socket (U3C1)

DD Intel SB82441FX (PMC, U4F1)

GG Consumer/Fast IR header (5x2, J4L1)

JJ S3 ViRGE/DX video controller (U2K1)

MM COM2H header (5x2, J3N1)

ISA/PCI riser socket (J6J2)

LPB VESA header (J1K1)

HH PCI slot Jumper block (2x3, J1J1) II

KK 2 MB of Video DRAM LL

Configuration jumper block (J4L2)

Motherboard Description

1.2 Motherboard Manufacturing Options

Contact your local Intel Field Sales Office for options and ordering information.

1.3 Form Factor

The motherboard is designed to fit into a standard LPX form factor chassis. Figure 2 illustrates the

mechanical form factor for the AP440FX. The AP440FX LPX form factor adheres to the standard

LPX guidelines with outer dimensions of 9 inches x 13 inches.

7.10

12.63

10.98

5.50

0.00

0.150

8.65

0.37

0.35

3.55

7.15

0.00

8.45

OM06179

Figure 2. Motherboard Dimensions

AP440FX Motherboard Technical Product Specification

1.4 I/O Shield

The back panel I/O shield for the AP440FX motherboard must meet specific dimensional and

material requirements. Computers based on the AP440FX motherboard need the back panel I/O

shield in order to pass certification testing. Figure 3 shows the critical dimensions for the I/O

shield and indicates the position of each cutout.

0.118

0.235 0.900

0.682

0.525

2.534

3.945

4.645

5.302

5.963

6.904

8.193

9.000

0.021

0.080

0.075

0.079

Right-end View

0.027

OM06183A

Figure 3. Back Panel I/O Shield Dimensions

Motherboard Description

1.5 Microprocessor

The AP440FX motherboard operates with 2.1 V to 3.5 V Pentium Pro processors. An onboard

voltage regulator circuit provides the required voltages from the 5 V and 3.3 V taps off the power

supply. The onboard voltage regulator makes use of the VID capabilities to automatically adjust

its voltage output to match that of the installed processor. Pentium Pro processors running at 150,

166, 180, and 200 MHz are supported.

The Pentium Pro processor integrates the second level cache and cache controller that were

previously implemented on the motherboard. The internal, non-blocking L2 cache on the 150, 180

and 200 MHz processors is 256 KB, while second versions of the 166 and 200 MHz processors

integrate a 512 KB cache. The Pentium Pro processor has an advanced numeric coprocessor that

significantly increases the speed of floating point operations, while maintaining backward

compatibility with math coprocessors that comply with ANSI/IEEE standard 754-1985.

NOTE

✏

If you are installing a 3.5 V processor, a jumper must be installed on the jumper block located at

J8A2. See Section 1.13 for more information.

NOTE

The 200 MHz Pentium Pro processor with 512 KB of cache memory is not supported on the

AP440FX motherboard.

1.5.1 Microprocessor Upgrade

Socket 8 is a 387-pin, modified staggered pin grid array (SPGA) zero insertion force (ZIF) socket,

along with a programmable voltage regulator for the microprocessor core. It provides users with a

performance upgrade path to OverDrive processors. The voltage regulator programming is

automatic and controlled by the VID pins of the processor.

1.5.2 Microprocessor Heatsink and Clips

An approved Pentium Pro processor heatsink is necessary for proper thermal dissipation in an LPX

compliant chassis. The processor/heatsink assembly must be securely fastened to the Socket 8 ZIF

socket by two clips. These clips fit over the heatsink assembly and attach to the outer wide tabs of

the Socket 8 assembly.

CAUTION

Do not use the older style of bail-wire clips for securing the heatsink assembly. These clips have

been found to damage the motherboard when installed or removed incorrectly.

AP440FX Motherboard Technical Product Specification

1.6 Main System Memory

The motherboard has four 72-pin tin-lead SIMM sockets that make it possible to install up to

128 MB of RAM. The sockets support 1M x 32 (4 MB) single-sided modules, 2M x 32 (8 MB),

4M x 32 (16 MB), and 8M x 32 (32 MB) single- or double-sided modules. Minimum memory size

is 8 MB and maximum memory size, using four 8M x 32 SIMM modules, is 128 MB. Memory

timing requires 60 ns fast page devices or, for optimum performance, 60 ns EDO DRAM. Both

parity and non-parity memory modules are supported. With parity SIMMs, the board can be

configured to support ECC operation.

The four sockets are arranged in two banks of two sockets each. The sockets are designated

Bank 0 and Bank 1. Each bank provides a 64/72-bit wide data path. Both SIMMs in a bank must

be of the same memory size and type, although the types and sizes of memory may differ between

banks. Bank 0 only, Bank 1 only, or both of the banks may be populated. There are no jumper

settings required for the memory size or type, which is automatically detected by the BIOS. Use

only tin lead SIMMs when adding DRAM.

1.6.1 DRAM

EDO (or Hyper Page) DRAM is designed to improve the DRAM read performance. EDO DRAM

holds the memory data valid until the next memory access cycle, unlike standard fast page mode

DRAM that tri-states the memory data when the precharge cycle occurs, prior to the next memory

access cycle.

1.6.2 Parity and ECC DRAM

Memory error checking and correction is supported by parity SIMMs. With parity SIMMs, the

board can be configured to support ECC memory operation. Parity SIMMs are automatically

detected, but the user must enter Setup to configure the SIMMs for either Parity or ECC operation.

Parity memory detects single bit errors. ECC memory detects double bit errors and corrects single

bit errors. Errors may be generated by a defective memory module, by different speeds of memory

modules, or by DMA or memory conflicts.

1.7 Chipset

The Intel 82440FX PCIset consists of the 82441FX PCI Bridge and Memory controller (PMC) and

the 82442FX Data Bus Accelerator (DBX). The Intel 82371SB PCI ISA/IDE Xccelerator (PIIX3)

bridge, provides the connection between the ISA and PCI buses.

1.7.1 82441FX PCI Bridge and Memory Controller (PMC)

The 82441FX comes in a 208 pin QFP package and provides the following features:

•

Microprocessor interface control

Pentium Pro processor host bus up to 66 MHz

32-bit addressing

Motherboard Description

•

Integrated DRAM controller

64/72-bit Non-Interleaved path to memory w/ ECC support

Support for EDO and Fast Page DRAM

8 MB to 256 MB main memory

Fully synchronous PCI bus interface

PCI Rev. 2.1 - 5 V interface compliant

25/30/33 MHz

PCI to DRAM > 100 MBps

Data Buffering

Host-to-DRAM and PCI-to-DRAM write data buffering

Write combining support for host-to-PCI burst writes

1.7.2 82442FX Data Bus Accelerator (DBX)

The DBX connects to the 64 bit Pentium Pro processor data bus, the 64/72 bit memory data bus

and the 16 bit PMC private data bus. The DBX works in parallel with the PMC to provide a high

performance memory subsystem for Pentium Pro processor based computers. The DBX comes in

a 208 pin PQF package.

1.7.3 82371SB PCI/ISA IDE Xccelerator (PIIX3)

The 82371SB provides the interface between the PCI and ISA buses and integrates a dual channel

fast IDE interface capable of supporting up to four devices. The 82371SB integrates four 8-bit and

three 16-bit DMA channels, three 8-bit timer/counters, two eight-channel interrupt controllers,

PCI-to-AT^†interrupt mapping circuitry, NMI logic, ISA refresh address generation, and PCI/ISA

bus arbitration circuitry together into the same device. The PIIX3 comes in a 208-pin QFP

package and provides the following features:

•

Interface between the PCI bus and ISA bus

Universal Serial Bus (USB)

Host/Hub Controller

Support for 2 USB ports

•

Integrated fast IDE interface

Support for up to 4 devices with separate Master/Slave mode support

PIO Mode 4 transfers up to 16 MB/sec

Integrated 8 x 32-bit buffer for Bus Master IDE PCI burst transfers

Enhanced DMA controller with Fast Type-F DMA

Counters/Timers

•

Power Management

Programmable system management interrupt (SMI)

AP440FX Motherboard Technical Product Specification

1.7.4 IDE Support

The motherboard provides two independent high performance bus-mastering PCI IDE interfaces

capable of supporting PIO Mode 3 and Mode 4 devices. The BIOS supports Logical Block

Addressing (LBA) and Extended Cylinder Sector Head (ECHS) translation modes as well as ATAPI

(e.g., CD-ROM) devices on both IDE interfaces. Detection of IDE device transfer rate and

translation mode capability is automatically determined by the BIOS.

Normally, programmed I/O operations require a substantial amount of microprocessor bandwidth.

In true multi-tasking operating systems like Windows^†95, the microprocessor bandwidth freed up

by using PCI bus mastering IDE can be used to complete other tasks while disk transfers are

occurring. When used in conjunction with the appropriate driver for the Windows 95 environment,

the IDE interface can operate as a PCI bus master capable of supporting PIO Mode 4 devices with

transfer rates of up to 16 MB/sec.

Detailed information on the PCIset is available in the Intel 82440FX PCISet data sheet.

1.7.5 Secure Flash Support

The AP440FX motherboard uses both onboard hardware and BIOS code support to protect the

onboard flash memory device from accidentally or intentionally being corrupted. A general

purpose I/O (GPIO) port of the I/O controller is used to control the write enable line of the flash

device. By putting the microprocessor in System Management Mode (SMM) whenever the flash

write is enabled, the BIOS can ensure that the SMM code is not corrupted and that flash can only

be written from within SMM.

1.7.6 USB Support

The AP440FX motherboard has two USB ports. This permits connection of two USB peripheral

devices directly to the computer without an external hub. If more devices are required, an external

hub can be connected to either of the built-in ports. The motherboard completely supports the

standard universal host controller interface (UHCI) and takes advantage of the standard software

drivers written to be compatible with UHCI. Features of the USB include:

•

Self-identifying peripherals

Automatic mapping of function to driver and configuration

Support for isochronous and asynchronous transfer types over the same set of wires

Support for up to 127 physical devices

Guaranteed bandwidth and low latencies appropriate for telephony, audio, and other

applications

•

Error handling and fault recovery mechanisms built into protocol

Low cost cables and connectors

Motherboard Description

1.8 PC87307 Super I/O Controller

Control for the integrated serial ports, parallel port, floppy drive, real-time clock, and keyboard

controller is incorporated into a single component, the National Semiconductor PC87307. The

PC87307 is a fully Plug and Play compatible device which provides:

•

Two NS16C550-compatible UARTs with send/receive 16 byte FIFO

Support for an IrDA and Consumer IR compliant Infrared interface

Multi-mode bi-directional parallel port

•

Standard mode; IBM^†and Centronics^†compatible

Enhanced Parallel Port (EPP) with BIOS/Driver support

High Speed mode; Extended Capabilities Port (ECP) compatible

Industry standard floppy controller with 16 byte data FIFO (2.88 MB floppy support)

Integrated Real Time Clock with Century calendar functionality

Integrated 8042 compatible keyboard controller

•

The PC87307 is normally configured automatically by the BIOS, but configuration of these

interfaces also is possible using the CMOS Setup utility that can be invoked during boot. The

serial ports can be enabled as COM1, COM2, COM2 as IrDA, or disabled. The parallel port can

be configured as compatible, bi-directional, EPP/ECP, or disabled. The floppy interface can be

configured for 360 KB or 1.2 MB 5¼" media or for 720 KB, 1.2 MB, 1.44 MB, or 2.88 MB

3½" media.

1.8.1 Floppy Controller

The PC87307 is software compatible with the DP8473 and 82077 floppy disk controllers. The

floppy interface can be configured for 360 KB or 1.2 MB 5¼" media or for 720 KB, 1.2 MB,

1.44 MB, or 2.88 MB 3½" media in the BIOS setup. By default, the Floppy A interface is

configured for 1.44 MB and Floppy B is disabled. Configuring the floppy interface for 1.2 MB

3½" (3-mode floppy) requires the use of a driver to operate correctly.

1.8.2 Keyboard and Mouse Interface

PS/2 keyboard/mouse connectors are located on the back panel side of the motherboard. The 5V

lines to these connectors are protected with a PolySwitch^†circuit which acts much like a self-

healing fuse, re-establishing the connection after an over-current condition is removed. While this

device eliminates the possibility of having to replace a fuse, care should be taken to turn off the

power before installing or removing a keyboard or mouse.

The integrated 8042 microcontroller contains the AMI Megakey keyboard/mouse controller code

which, besides providing traditional keyboard and mouse control functions, supports Power-

On/Reset (POR) password protection. The POR password can be defined by the user in the Setup

program. The keyboard controller also provides for the following “hot-key” sequences:

•

<CTRL> <ALT> <DEL>: System software reset. This sequence performs a software reset of

the computer by jumping to the beginning of the BIOS code and running the POST operation.

AP440FX Motherboard Technical Product Specification

•

<CTRL> <ALT> <defined in Setup>: Power down and coffee-break key sequences take

advantage of the SMM features of the Pentium Pro processor to greatly reduce the computer’s

power consumption while maintaining the responsiveness necessary to service external

interrupts.

<CTRL> <ALT> <defined in Setup>: Keyboard secure hot keys lock the keyboard until user

specified password is given.

1.8.3 Real-Time Clock, CMOS RAM and Battery

The integrated real-time clock is compatible with DS1287 and MC146818 components. It

provides a time of day clock, a 100-year calendar with alarm features, and a century register. The

real-time clock can be set in the Setup program. The real-time clock also supports 242-byte

battery-backed CMOS RAM in two banks which is reserved for BIOS use. The CMOS RAM can

be set to specific values or cleared to the default values using the Setup program. Also, the CMOS

RAM values can be cleared to the defaults by using a configuration jumper on the motherboard.

An external coin-cell style battery provides power to the real-time clock and CMOS memory. The

battery used is a long-life version that is socketed for easy replacement. When the computer is on,

the life of the battery is extended by a trickle current from the power supply.

1.8.4 Infrared Support

A 5-pin interface on the front panel I/O connector allows connection to a Hewlett Packard^†HSDL-

1000 compatible infrared (IrDA) transmitter/receiver. Once the module is connected to the front

panel I/O header, Serial port 2 can be redirected to the IrDA module. When configured for IrDA,

the user can transfer files to or from portable devices such as laptops, PDAs and printers using

application software such as LapLink^†. The IrDA specification provides for data transfers at

115kbps from a distance of 1 meter. Support for Consumer Infrared (ASK-IR and DASK-IR

options for SHARP-IR) is also included. Consumer infrared is supported at both slow and medium

speeds.

1.8.5 Parallel Port

A 25-pin D-Sub header is provided on the back panel for a multi-mode bi-directional parallel port.

The parallel port operates in standard mode, Enhanced Parallel Port (EPP) version 1.7 mode, with

BIOS and Driver support, and a high speed Extended Capabilities Port (ECP) compatible mode.

EPP Mode requires a driver provided by the peripheral manufacturer to operate correctly.

1.9 Graphics Subsystem

The AP440FX motherboard is available with a factory option of an S3 ViRGE^†or ViRGE/DX

SVGA graphics controller. Both options are supported by 2 MB of 50 ns EDO SOJ DRAM

soldered to the motherboard. The AP440FX motherboard also supports the S3 media channel, also

known as the Local Peripheral Bus (LBP) or Scenic Highway.

Motherboard Description

1.9.1 S3 ViRGE Graphics Subsystem

The AP440FX motherboard is available with a factory option of an S3 ViRGE SVGA graphics

controller with 2 MB of 50 ns EDO SOJ DRAM. The S3 ViRGE has a high performance 64-bit

2D/3D graphics engine and incorporates the S3 Streams Processor that enables the device to

convert YUV formatted video data to RGB and provides acceleration for scaling the video display

without compromising picture quality or frame rate. The on-chip RAMDAC/clock synthesizer is

capable of output pixel data rates of 135 MHz providing non-interlaced screen resolutions of up to

1280x1024x256 colors at 75 Hz. The 64-bit S3d Engine incorporates the key Windows and other

GUI accelerator functions of BitBLT, line draw and polygon fill. 3D features include flat shading,

Gouraud shading and texture mapping support. Advanced texture mapping features include

perspective correction, bi-linear and tri-linear filtering, MIP-mapping, and Z-buffering. These

features provide the most realistic user experience for interactive 3D applications. In addition, a

fast linear addressing scheme based upon DCI reduces software overhead by mapping the display

memory into the microprocessor’s upper memory address space and permitting direct

microprocessor access to the display memory.

Table 2.

S3 ViRGE Supported Resolutions

Resolution

Refresh rate (Hz)

640 x 480 x 16 colors

640 x 480 x 256 colors

640 x 480 x 65,536 colors

60, 72, 75, 85

60, 72, 75

640 x 480 x 16,777,216 colors (non-accelerated mode) 60, 72, 75

800 x 600 x 256

56, 60, 72, 75, 85

60, 72, 75

800 x 600 x 65,536

800 x 600 x 16,777,216 colors (non-accelerated mode) 60, 72, 75

1024 x 768 x 256

1024 x 768 x 65,536

1280 x 1024 x 256

NOTE: IL = Interlaced

43(IL), 60, 70, 75, 85

43(IL), 60, 70, 75

45(IL), 60, 72, 75

The S3 ViRGE graphics controller supports more modes than shown above. The graphics drivers provide options for

additional resolutions.

AP440FX Motherboard Technical Product Specification

1.9.2 S3 ViRGE/DX Graphics Subsystem

The optional onboard graphics subsystem uses the S3 ViRGE/DX graphics controller, with the

following features:

•

64-bit graphics engine with accelerator core

24-bit RAMDAC/clock synthesizer

Dual programmable clock generators

DCI-based linear addressing scheme

S3 Streams Processor, which enables the conversion of video data from YUV format to RGB

format and accelerates display scaling while maintaining picture quality and frame rate

•

3-D graphics support including flat shading, Gouraud shading, and advanced texture mapping

S3 Scenic Highway support for hardware MPEG

Table 3.

S3 ViRGE/DX Supported Resolutions

Refresh Rate (Hz) At:

15/16-bit Color

4-bit Color

(16 Colors)

8-bit Color

24-bit Color 32-bit Color

(32K/64K Colors) (16M Colors) (16M Colors)

Resolution

640 x 480

800 x 600

(256 Colors)

60, 72, 75, 85

60, 72, 75

60, 72, 75 *

60, 72, 75

not supported

56, 60, 72, 75,

1024 x 768

1280 x 1024

1600 x 1200

not supported

43(IL), 60 ,70,

75, 85

43(IL), 60, 70, 75 not supported not supported

43(IL), 45(IL),

60, 72, 75 *

45(IL), 60, 72, 75 not supported

48.5(IL) not supported

not supported not supported

not supported

* Non-accelerated mode only

IL = Interlaced

The S3 ViRGE/DX graphics controller supports more modes than shown above. The graphics drivers provide options for

additional resolutions.

1.9.3 LBP VESA Feature Connector

The AP440FX motherboard supports a 34-pin VESA feature connector (which also accepts a

26-pin peripheral plug) for synchronizing graphics output with an external NTSC or PAL signal

and a shared frame buffer interface to maximize multimedia performance, as well as the LPB or

Scenic Highway that provides a glueless bi-directional interface to a video companion device such

as an MPEG/live video decoder. The AP440FX also supports other VESA standards such as the

VESA DPMS protocol to put a DPMS compliant monitor into power saving modes and the VESA

Display Data Channel (DDC2B) that permits transfer of monitor identification and resolution

support data for ease of use.

1.9.4 Graphics Drivers and Utilities

Graphics drivers and utilities may be downloaded from the Intel Applications Support web site at

http://www-cs.intel.com/oem_developer/motherbd. Once the site is accessed, perform a keyword

search for the specific application and its driver. Drivers for SCO^†UNIX^†are available from SCO.

Motherboard Description

1.10 Audio Subsystem

The AP440FX motherboard features a 16-bit stereo audio subsystem as a factory installed option.

The audio subsystem is based on the Crystal CS4236 multimedia codec. The CS4236 provides all

the digital audio and analog mixing functions required for playing and recording of audio on

personal computers. These functions include:

•

Stereo analog-to-digital and digital-to-analog converters

Analog mixing

Anti-aliasing and reconstruction filters

Line and microphone level inputs

Digital audio compression using selectable A-law / µlaw

Full digital control of all mixer and volume control functions

The CS4236 also provides support for four major sound standards including AdLib^†, Sound

Blaster Pro 2.0, Windows Sound System, and MPU-401. The CS4236 also supports full-duplex

operation which ensures support for applications such as video conferencing.

The CS4236 includes a Plug and Play compatible ISA interface and is comprised of seven logical

devices including:

•

Synthesizer

Game Port

Sound Blaster

Sound System

MPU-401

CD-ROM

CS4236 device

Each logical device is configured into the host environment using the ISA Plug and Play

configuration methodologies. The audio subsystem requires up to two DMA channels and one

interrupt. The computer can be configured to use either DMA channels 0, 1, or 3. The interrupt

can be mapped to use interrupt 5, 7, 9, 11, 12, or 15.

1.11 Management Extension Hardware

The Management Extension hardware provides low-cost instrumentation capabilities designed to

reduce the total cost of PC ownership. The Management Extension hardware incorporates features

that support the requirements of the Desktop Management Interface (DMI) compliant areas of the

BIOS, as well as those of the LANDesk Client Manager software. The hardware implementation

is a single-chip ASIC with the following features:

•

An integrated temperature sensor plus support for an external temperature sensor

Support for one fan speed sensor

Power supply voltage monitoring to detect levels above or below acceptable values

Registers for storing POST hardware test results and error codes

Remote reset capabilities from a remote peer or server through LANDesk Client Manager,

Version 3.0 and service layers (when available)

•

Hardware compatibility with Windows NT^†.

AP440FX Motherboard Technical Product Specification

When an out-of-range condition (temperature, fan speed, or voltage) is reached, an interrupt is

activated. The Management Extension circuitry connects to the ISA bus as an 8-bit I/O mapped

device and uses the I/O addresses identified in the I/O map.

1.12 Motherboard Connectors

The AP440FX motherboard has onboard connectors supporting the following feature areas:

•

Front panel features

Memory (SIMM) and expansion (PCI/ISA riser) sockets

Video features

Serial header

Audio features

Power connectors

Floppy and PCI IDE connectors

Figure 4 identifies the connectors on the AP440FX motherboard, and indicates the feature area

with which each connector is associated.

Motherboard Description

Audio

J9L1

Serial

PCI/ISA Riser

Connector(J6J2)

J3N1

Bank 0(J6J1, J7J1)

Bank 1(J7J2, J7J3)

Wavetable

COM2H

CD-ROM

J9N1

J9K1

Video

Telephony

LPB

VESA

J1K1

Power

3.3V

Power

J9J1

Primary

Power

Floppy/IDE

Secondary

Primary

J9H1

J9F1

Floppy

Drive

Soft

Off

J8L1

Front Panel

J4A1

PCI IDE

J3A1

J8H1

J9H2

Aux.

Fan

Keylock

J2A1

Front Panel I/O Connector Header

OM06182

Figure 4. Motherboard Connector Locations

AP440FX Motherboard Technical Product Specification

1.12.1 Front Panel Connectors

The AP440FX motherboard provides connectors to support functions typically located on the

chassis bezel. In addition, connectors are provided that support a cooling fan and a keyboard lock.

Front panel features supported by front panel connectors include:

•

Soft Power-On

Sleep/Resume

Infrared (IrDA) port

Hard Drive activity LED

Power LED

Reset

Speaker

Keyboard lock

Each of the front panel connectors is identified in Figure 4. The front panel I/O connector and

keyboard lock connector are shown, in detail, in Figure 5.

Keyboard

Lock

J3A1

J2A1

SW_ON

SLP

IRDA

PWRLED

SPKR

HDLED

RESET

OM04953

Figure 5. Front Panel I/O Connectors

Table 4 lists the pinout for the front panel I/O connector.

Table 4.

Front Panel I/O Connector (J2A1)

Signal Name

SW_ON

FPPWR_ON

SLEEP_REQ

FPSLP

Key

Signal Name

HD ACTIVE

+5V

Key

Ground

Key

+5V

PWRDVR

Key

IR_RX

Ground

IR_TX

Ground

FP_RESET

+5V

IR_SL1

Key

SPKR_DAT connect

PC_SPKROUT

+5V

Key

Motherboard Description

1.12.1.1 SW_ON

This 2-pin header connects to a front panel power switch. When the switch is closed, the power

supply turns on. If a mechanical switch is connected to this header, it must apply a momentary

ground to the SW_ON header pin in order to signal the supply to turn on or off. Because of the

motherboard’s internal debounce circuitry, the ground must be applied for at least 50ms. At least

two seconds must pass before the power supply will recognize another on/off signal (to prevent

“double clicking”).

1.12.1.2 Sleep/Resume

When Advanced Power Management (APM) is activated in the BIOS and the Operating System’s

APM driver is loaded, Sleep mode (Standby) can be entered in one of three ways:

•

An optional front panel “Sleep/Resume” button

A user defined keyboard hot key

Prolonged computer inactivity

The Sleep/Resume button is supported by a 2-pin header located on the front panel I/O connector.

Closing the “Sleep” switch generates an SMI (System Management Interrupt) to the processor

which immediately goes into System Management Mode (SMM).

The front panel “Sleep mode” switch must be a momentary two pin SPST type that is normally

open. The function of the Sleep/Resume button can also be achieved by using a keyboard hot-key

sequence, or by a time-out of the inactivity timer. Both the keyboard hot key and the inactivity

timer are programmable in the BIOS Setup (timer is set to 10 minutes by default). To reactivate

the computer, or “Resume”, the user must simply press the sleep/resume button again, or use the

keyboard or PS/2 mouse. Mouse activity only “wakes up” the computer if a mouse driver is

loaded. While the computer is in Standby or “sleep” mode, it is fully capable of responding to and

servicing external interrupts (such as in-coming FAX) even though the monitor only turns on if a

user interrupt (keyboard/mouse) occurs as mentioned above.

1.12.1.3 Infrared Connector

Serial port 2 can be configured to support an IrDA module with a 5 pin header connector. Once

configured for IrDA, the user can transfer files to or from portable devices such as laptops, PDAs

and printers using application software such as LapLink. The IrDA specification provides for data

transfers at 115 Kbps from a distance of 1 meter. Consumer IR is also supported by the same

connector.

1.12.1.4 Hard Drive LED

This 3-pin, keyed header can be connected to a front panel LED to indicate when hard drive

activity is taking place. When the hard drive is being accessed, the HDACTIVE pin (J2A1-15)

goes low.

1.12.1.5 Power-ON LED

This 2-pin header can be connected to a front panel LED to indicate when power is applied to the

motherboard. When the motherboard is powered up, power is applied to the PWRDRV pin

(J2A1-20) to light the front panel LED.

AP440FX Motherboard Technical Product Specification

1.12.1.6 Reset

This 2-pin header can be connected to a momentary SPST type switch that is normally open.

When the switch is closed, the computer performs a hard reset and runs POST.

1.12.1.7 Speaker

The speaker provides error beep code information during the POST, if the computer cannot use the

video interface. Jumpering pins 26-27 (the last two pins of J2A1) engage the onboard speaker. To

disable the onboard speaker (and allow use of the chassis speaker), remove the jumper from these

pins.

1.12.1.8 Keylock Connector (J3A1)

The Keylock connector pinout is listed in Table 5.

Table 5.

Keylock Connector (J3A1)

Signal Name

Ground

KB_LOCK

Ground

1.12.1.9 Fan Connector (J4A1)

The auxiliary fan connector (J4A1) is a 1-by-3 header that can accept either two-position (power

and ground) or three-position (power, ground, and fan sense) fan plugs. Figure 6 indicates the

required orientation and positioning of the fan plug. Table 6 lists the signals and pinout for the fan

connector.

J4A1

3-Wire Fan

Fan Sense

Connector

(Tach.)

Fan Power

Ground

Std. Fan

Connector

OM06181

Figure 6. Fan Connector Usage

Table 6.

Auxiliary Fan Connector (J4A1)

Signal Name / Function

Ground

Fan Power

Fan Sense (Tachometer)

Motherboard Description

1.12.2 Memory/Expansion Connectors

The AP440FX motherboard has four 72-pin SIMM sockets for main memory. These sockets

accept standard SIMM 72-pin modules, as long as they satisfy the requirements described in the

“Main System Memory” section of this specification, starting on page 12.

The AP440FX motherboard uses a PCI/ISA riser connector (J6J2) to provide for expansion PCI or

ISA boards. The associated riser board can support either two or three PCI slots. A pair of

jumpers on the AP440FX motherboard must be set to define the number of PCI slots on the riser

board. Refer to Figure 8 on page 35 for jumper block details. Table 7 shows the pinout listing for

the PCI/ISA riser connector.

Table 7.

PCI/ISA Riser Connector (J6J2)

Signal Name

IOCHK#

SD7

Signal Name

GND

Signal

GND

Signal Name

GND

RSTDRV

Vcc

GND

SD6

PCIINT1#

PCIIINT2#

Vcc

PCIINT3#

PCIINT4#

Vcc

SD5

IRQ9

SD4

-5 V

SD3

DRQ2

-12 V

Key

SD2

Vcc

SD1

0WS#

PCIRST#

GNT0#

REQ0#

GND

PCKLF

GND

SD0

+12 V

A10

A11

A12

A13

A14

A15

A16

A17

A18

IOCHRDY

AEN

B10

B11

B12

B13

B14

B15

B16

B17

B18

GND

E10

E11

E12

E13

E14

E15

E16

E17

E18

F10

F11

F12

F13

F14

F15

F16

F17

F18

GNT1#

GND

SMEMW#

SMEMR#

IOW#

SA19

SA18

SA17

SA16

SA15

SA14

SA13

PCKLE

GND

REQ1#

AD31

IOR#

AD30

3.3 V

AD29

DACK3#

DRQ3

3.3 V

Key

DACK1#

DRQ1

3.3 V

AD28

AD27

^continued☛

AP440FX Motherboard Technical Product Specification

Table 7.

PCI/ISA Riser Connector (J6J2) (continued)

A19

A20

A21

A22

A23

A24

A25

A26

A27

A28

A29

A30

A31

Signal Name

SA12

SA11

SA10

SA9

B19

B20

B21

B22

B23

B24

B25

B26

B27

B28

B29

B30

B31

Signal Name

REFRESH#

SYSCLK

IRQ7

E19

E20

E21

E22

E23

E24

E25

E26

E27

E28

E29

E30

E31

Signal

AD26

AD24

AD22

AD20

AD18

3.3 V

Key

F19

F20

F21

F22

F23

F24

F25

F26

F27

F28

F29

F30

F31

Signal Name

AD25

CBE3#

AD23

AD21

AD19

3.3 V

Key

IRQ6

SA8

IRQ5

SA7

IRQ4

SA6

IRQ3

SA5

DACK2#

3.3 V

AD16

FRAME#

CBE2#

TRDY#

STOP#

SDONE

SBO#

CBE1#

PAR

3.3 V

AD17

IRDY#

DEVSEL#

PLOCK#

PERR#

SERR#

AD15

AD14

AD12

GND

SA4

SA3

BALE

SA2

Vcc

SA1

OSC

SA0

GND

SBHE#

LA23

LA22

LA21

LA20

LA19

LA18

LA17

MEMR#

MEMW#

SD8

MEMCS16#

IOCS16#

IRQ10

IRQ11

IRQ12

IRQ15

IRQ14

DACK0#

DRQ0

GND

Key

GND

AD13

AD11

AD9

AD10

AD8

C10

C11

C12

C13

C14

C15

C16

C17

C18

D10

D11

D12

D13

D14

D15

D16

D17

D18

DACK5#

DRQ5

G10

G11

G12

G13

G14

G15

G16

G17

G18

H10

H11

H12

H13

H14

H15

H16

H17

AD7

CBE0#

AD6

AD5

SD9

DACK6#

DRQ6

AD3

SD10

SD11

SD12

SD13

SD14

SD15

AD4

AD1

DACK7#

DRQ7

AD2

AD0

Key

Vcc

MASTER#

GND

GNT2

Vcc

(GND | REQ2) * H18

(GND |

PCCLK2) *

G19

GND H19

GND

* These signals are (2 slot | 3 slot) jumpered signal names.

Motherboard Description

1.12.3 VESA Feature Connector

Table 8 provides the pinout and signal listing for the LBP VESA feature connector.

Table 8.

LBP VESA Feature Connector (J1K1)

Signal Name / Function

Ground

Signal Name / Function

Pixel Data 0

Pixel Data 1

Pixel Data 2

Pixel Data 3

Pixel Data 4

Pixel Data 5

Pixel Data 6

Pixel Data 7

PCLK, Pixel Clock

BLANKING

Ground

Enable External Pixel Data

Enable External Sync

Enable External Pixel Clock

N/C, not used

Ground

HSYNC, Horizontal Sync

VSYNC, Vertical Sync

Ground

N/C, not used

Key (no pin)

IICCLK

Key (no pin)

Ground

IICDAT

N/C

EN1

EN2

1.12.4 Serial Header

The COM2 serial port can be accessed using the COM2H header (J3N1) on the motherboard.

Table 9 lists the signals and pinout for the COM2H header.

Table 9.

Serial Port (COM2H, J3N1) Pinout

Signal Name

DCD

Description

Carrier Detect

Data Set Ready

Serial Data In

Request To Send

Serial Data Out

Clear To Send

Data Terminal Ready

Ring Indicator

Chassis Ground

Vacant

DSR

SIN#

RTS

SOUT#

CTS

DTR

GND

Key

AP440FX Motherboard Technical Product Specification

1.12.5 Audio Connectors

The pinouts and signal listings for the audio connectors are provided in Table 10, Table 11, and

Table 12.

Table 10. CD-ROM Connector (J9N1)

Signal Name

Ground

CD-Left

Ground

CD-Right

Table 11. Wavetable Upgrade Connector (J9L1)

Signal Name

Wave Right

Ground

Wave Left

Ground

Key

Midi_In

MIDI_Out

Table 12. Telephony Connector (J9K1)

Signal Name

Ground

Mono Out

Mic In

Key

Motherboard Description

1.12.6 Power Supply Connectors

The AP440FX motherboard must be used with a power supply that supports remote power on/off,

so the motherboard can turn off the power under software control. The Powerman utility supplied

for Windows 3.1x allows for soft-off as does the shutdown icon in Windows 95 Start menu. The

BIOS turns the power off when it receives the proper APM command from the operating system.

For example, Windows 95 issues this APM command after the user selects “Shutdown the

computer” option. APM must be enabled in the BIOS and operating system in order for the soft-

off feature to work correctly. The user has the ability to determine the state of the power supply, so

if the computer was turned on when power was disconnected, the computer turns back on when

power is reapplied or it remains off, depending on the user setup configuration in CMOS.

Table 13 provides the pinout listing for the primary power supply connector of the AP440FX

motherboard.

Table 13. Primary Power Supply Connector (J9H1)

Name

PWRGD

+5 V

Function

Power good

+5 volts VCC

+12 volts

-12 volts

+12 V

-12 V

4, key

Ground

-5 V

Ground

7, key

Ground

-5 volts

+5 V

+5 volts VCC

+5 V

Table 14 provides the pinout listing for the external 3.3 volt power supply connector of the

AP440FX motherboard.

Table 14. External 3.3 V Power Supply

Connector (J9J1)

Name

Ground

+3.3 V

6 key

AP440FX Motherboard Technical Product Specification

The pinout listing for the soft-off power supply connector of the AP440FX motherboard is shown

in Table 15. This 3-pin, keyed position supports a software-controlled power supply shutoff (soft-

off). When connected to this position, the power supply follows remote on/off commands.

Table 15. Soft-Off Power Supply Connector (J9F1)

Name

Function

+5 VSB

PS_ON

PS_COM

+5 Volts Standby

Remote On/Off

Supply presence

1.12.7 Floppy/IDE Connectors

Table 16 lists the pinout and signal names for the floppy drive connector.

Table 16. Floppy Drive Connector (J8L1)

Signal Name

Ground

Key

Signal Name

DENSEL

Reserved

FDEDIN

Ground

MSEN1

Ground

MSEN0

Ground

Index#

Motor Enable A#

Drive Select B#

Drive Select A#

Motor Enable B#

DIR#

STEP#

Write Data#

Write Gate#

Track 00#

Write Protect#

Read Data#

Side 1 Select#

Diskette Change#

Motherboard Description

Table 17 lists the pinout and signal names for the IDE connectors.

Table 17. IDE Connectors (J8H1, J9H2)

Signal Name

Reset IDE

Signal Name

Ground

Host Data 7

Host Data 6

Host Data 5

Host Data 4

Host Data 3

Host Data 2

Host Data 1

Host Data 0

Ground

Host Data 8

Host Data 9

Host Data 10

Host Data 11

Host Data 12

Host Data 13

Host Data 14

Host Data 15

Key

DDRQ0 (DDRQ1)

I/O Write#

Ground

I/O Read#

Ground

IOCHRDY

Vcc pull-down

Ground

DDACK0 (DDACK1)#

IRQ14 (IRQ15)

DAG1

Reserved

DAG0

DAG2

Chip Select 1P (1S)#

Activity#

Chip Select 3P (3S)#

Ground

AP440FX Motherboard Technical Product Specification

1.12.8 Back Panel Connectors

Figure 7 shows the location of the back panel connectors.

Audio

Out

PS/2

Mouse

Mic Input

Parallel Port

PS/2

Keyboard

USB 1 USB 2

Serial

Port 1

VGA Video

OM06183

Figure 7. I/O Connections

1.12.8.1 VGA Video Connector

Table 18 lists the pinout and signal names for the VGA video connector.

Table 18. VGA Video Connector (J1N1)

Signal Name / Function

Red Video

Signal Name / Function

Key (no pin)

Green Video

Sync Return (Ground)

Monitor ID Bit 0 (not used)

Monitor ID Bit 1 (not used)

Horizontal Sync

Blue Video

Monitor ID Bit 2 (not used)

Chassis Ground

Red Return (Ground)

Green Return (Ground)

Blue Return (Ground)

Vertical Sync

Not used

Shield

Chassis Ground

Motherboard Description

1.12.8.2 COM1 Serial Port

Table 19 lists the pinout and signal names for the serial connectors.

Table 19. Serial Port Connector Pinout

Signal Name

DCD

Description

Carrier Detect

Serial Data In

SIN#

SOUT#

DTR#

GND

Serial Data Out

Data Terminal Ready

Chassis Ground

Data Set Ready

Request To Send

Clear To Send

Ring Indicator

DSR#

RTS#

CTS#

1.12.8.3 USB Back Panel Connectors

Table 20 lists the pinout and signal names for the USB back panel connectors.

Table 20. USB Connector Pinout

Signal Name

+5 v (fused)

USBP0# [USBP1#] (fused)

USBP0 [USBP1] (fused)

Ground

1.12.8.4 Keyboard and Mouse Ports

Table 21 lists the pinout and signal names for the PS/2 keyboard and mouse connectors. Although

they are labeled as “Keyboard” and “Mouse” on the motherboard and the back panel, the

connectors can be used interchangeably for either keyboard or mouse.

Table 21. PS/2 Keyboard/Mouse Connector Pinout

Signal Name / Function

Data

No connect

Ground

+5 VDC (fused)

Clock

No connect

AP440FX Motherboard Technical Product Specification

1.12.8.5 Parallel Port

Table 22 lists the pinout and signal names for the parallel port connector.

Table 22. Parallel Port Connector Pinout

Signal Name

STB#

PPD0

PPD1

PPD2

PPD3

PPD4

PPD5

PPD6

PPD7

ACK#

BUSY

Description

Strobe

Signal Name

AFD#

Description

Auto Feed

Data Bit 0

Data Bit 1

Data Bit 2

Data Bit 3

Data Bit 4

Data Bit 5

Data Bit 6

Data Bit 7

Acknowledge

Port Busy

Paper end

Select

ERROR#

INIT#

Fault

Initializing printer

Select input

SLCTIN#

GND

Chassis Ground

GND

SLCT

Motherboard Description

1.13 Jumper Settings

There are three jumper blocks on the AP440FX motherboard. The jumper block at J1J1 defines the

number of PCI slots (two or three slots) available on the riser board used with the motherboard.

The jumper block at J4L2 defines a range of microprocessor and motherboard configuration

parameters. The jumper block at J8A2 is used to provide 3.5 V for processors that require that

voltage. Figure 8 shows the jumper block locations on the motherboard, and indicates how jumper

placement corresponds to the value defined by the motherboard silk-screening.

Jumper

Placement

Detail

DOWN

Configuration

Jumpers

J4L2

J1J1

DOWN

PCI Riser

3.5 V

Processor

Voltage

OM06180

J8A2

Figure 8. Jumper Locations

AP440FX Motherboard Technical Product Specification

1.13.1 Microprocessor Configuration (J4L2)

These allow the motherboard to be switched between different speeds of the Pentium Pro

processor. These jumpers also affect the PCI and ISA clock speeds as shown in Table 23.

Table 23. Microprocessor/System Speed Settings

Host Bus

Microprocessor Microprocessor Freq.

PCI Bus

Freq.

ISA Bus

Freq.

J4L2-A J4L2-B J4L2-C Clock Multiplier Freq. (MHz)

(MHz)

DOWN DOWN DOWN 2.5

150

166

7.5

DOWN DOWN UP

2.5

8.33

DOWN UP

DOWN

reserved

DOWN DOWN

DOWN UP

DOWN

180

200

7.5

8.33

1.13.2 Motherboard Configuration (J4L2, J1J1)

The jumpers for sections D, E, F, G, and H of J4L2 allow the selection of various motherboard

features. A second jumper block (J1J1) allows selection of a riser board with either two or three

PCI board connectors. A third jumper (J8A2) is used to provide 3.5 V for processors that require

that voltage.

CAUTION

Do not install a jumper on the J8A2 header if you are using a processor that does not require

3.5V. The increased voltage could damage the processor.

Motherboard Description

Table 24 lists the motherboard configuration jumper positions and indicates the meaning for each

position.

Table 24. Configuration Jumper Settings

Function

Jumper

Configuration

FDWPR - Flash Write Protect

J4L2-D, 5-6

J4L2-D, 4-5

UP - NOR (Default), Normal operation

DOWN - PRT, Protect

FLASH - Flash Recover

J4L2-E, 2-3

J4L2-E, 1-2

UP - NOR (Default), Normal operation

DOWN - REC - Enable Top Boot block to

recover Flash.

CMOS - Clear CMOS Contents

J4L2-F, 5-6

J4L2-F, 4-5

UP - NOR (Default), Normal operation

DOWN - CLR, Clear CMOS content.

PSWCLR - Password Clear

Disable/Enable

J4L2-G, 2-3

J4L2-G, 1-2

UP - DIS, Disable

DOWN - ENA, Enable system password

capability.

SETUP - Setup Enable/Disable

J4L2-H, 5-6

J4L2-H, 4-5

UP - ENA, Enable

DOWN - DIS, Disable setup accessibility.

Riser with 2 PCI slots

Riser with 3 PCI slots

J1J1, 1-2 and

J1J1, 4-5

Enables use of riser card with two (2) PCI

slots.

J1J1, 2-3 and

J1J1, 5-6

Enables use of riser card with three (3) PCI

slots.

3.5 V Processor Voltage Jumper J8A2

Installed - 3.5 V Processor.

Not Installed - All other processor types.

Note: The text appearing in a BOLD-ITALIC font duplicates the text of the motherboard silk-screening.

1.14 Reliability

The Mean-Time-Between-Failures (MTBF) data is calculated from predicted data @55 °C in

accordance with the Intel Reliability Policy and Procedures Handbook.

Motherboard

60239 Hours

AP440FX Motherboard Technical Product Specification

1.15 Environmental

Table 25. Motherboard Environmental Specifications

Parameter

Specification

Temperature

Non-Operating

-40 ^oC to +70 ^oC

+0 ^oC to +55 ^oC

Operating

DC Voltage

+3.3 V

±5 %

+5 V

-5 V

+12 V

-12 V

Vibration

Unpackaged

5 Hz to 20 Hz : 0.01g² Hz sloping up to 0.02 g² Hz

20 Hz to 500 Hz : 0.02g² Hz (flat)

Packaged

10 Hz to 40 Hz : 0.015g² Hz (flat)

40 Hz to 500 Hz : 0.015g² Hz sloping down to 0.00015 g² Hz

1.16 Power Consumption

Table 26 lists the voltage and current specifications for a hypothetical computer configured with

the AP440FX motherboard and the following components: a 200 MHz Pentium Pro processor w/

256 KB Cache, 16 MB EDO DRAM, 3.5-inch floppy drive, 1.6 GB IDE hard drive, and 4X IDE

CD-ROM. The power supply is a 200 watt LPX power supply with at least 65% efficiency. This

information is preliminary and is provided only as a guide for calculating approximate total power

usage with additional resources added.

Table 26. Power Usage

DC (amps)

+12 V

Operating Conditions

AC (watts)

+3.3 V +5 V

-5 V

-12 V

+5VSB

APM enabled, idle and running

Windows 95 desktop

29.6

400 mA 1.96 A < 10 mA 240 mA 50 mA N/A

APM disabled, running

Windows 95 SCT AVI test

53.7

N/A

410 mA 6.08 A < 10 mA 240 mA 80 mA N/A

Computer powered down

N/A

< 10 mA

Motherboard Description

1.16.1 Power Supply Considerations

The AP440FX motherboard is designed to operate with a switching power supply in the PS/2

form-factor with dual line input capability, remote ON/OFF, forced air cooling, standby voltage

(VSB), and the following electrical characteristics:

•

Power - 200 W maximum peak, 160 W maximum continuous

Rise time for power supply - 2 ms to 20 ms

Minimum delay from reset to Powergood - 100ms

Minimum Powerdown warning - 1 ms

Table 27. DC Voltage

Current Range (amps)

DC Voltage

+3.3 V

Acceptable Tolerance

Maximum

14.0

18.0

0.1

Minimum

+5/-3%

0.3

1.0

+5 V

± 5%

+5 V SB (standby) ± 5%

-5 V

± 10%

± 5%

0.3

+12 V

-12 V

6.0

± 10%

0.8

1.17 Regulatory Compliance

This printed circuit assembly complies with the following safety and EMI regulations when

correctly installed in a compatible host system.

1.17.1 Safety

1.17.1.1 UL 1950 - CSA 950-95, 3rd edition, Dated 07-28-95

The Standard for Safety of Information Technology Equipment including Electrical Business

Equipment. (USA & Canada)

1.17.1.2 CSA C22.2 No. 950-93, 3rd Edition

The Standard for Safety of Information Technology Equipment including Electrical Business

Equipment. (Canada)

1.17.1.3 EN 60 950, 2nd Edition, 1992 (with Amendments 1, 2 & 3)

The Standard for Safety of Information Technology Equipment including Electrical Business

Equipment. (European Union)

1.17.1.4 IEC 950, 2nd edition, 1991 (with Amendments 1, 2 & 3)

The Standard for Safety of Information Technology Equipment including Electrical Business

Equipment. (International)

AP440FX Motherboard Technical Product Specification

1.17.1.5 EMKO-TSE (74-SEC) 207/94

Summary of Nordic deviations to EN 60 950. (Norway, Sweden, Denmark & Finland)

1.17.2 EMI

1.17.2.1 FCC Class B

Title 47 of the Code of Federal Regulations, Parts 2 & 15, Subpart B, pertaining to unintentional

radiators. (USA)

1.17.2.2 CISPR 22, 2nd Edition, 1993

Limits and methods of measurement of Radio Interference Characteristics of Information

Technology Equipment. (International)

1.17.2.3 EN 55 022, 1995

Limits and methods of measurement of Radio Interference Characteristics of Information

Technology Equipment. (Europe)

1.17.2.4 EN 50 082-1 (1992)

Generic Immunity Standard; Currently compliance is determined via testing to IEC 801-2, -3,

and -4. (Europe)

1.17.2.5 VCCI Class 2 (ITE)

Implementation Regulations for Voluntary Control of Radio Interference by Data Processing

Equipment and Electronic Office Machines. (Japan)

1.17.2.6 ICES-003, Issue 2

Interference-Causing Equipment Standard, Digital Apparatus. (Canada)

1.17.3 Product Certification Markings

This printed circuit assembly has the following product certification markings:

•

European CE Marking: Consists of a marking on the board and shipping container.

UL Recognition Mark: Consists of the UL File No. E139761 on the component side of the

board and the PB No. on the solder side of the board. Board material flammability is 94V-1

or -0.

Canadian Compliance: Consists of small c followed by a stylized backward UR on component

side of board.

2 Motherboard Resources

2.1 Memory Map

Table 28. Memory Map

Address Range

(Decimal)

Address Range (hex)

100000-8000000

F0000-FFFFF

Size

127M

64K

16K

Description

1024K-131072K

960K-1023K

944K-959K

936K-943K

932K-935K

928K-931K

896K-927K

800-895K

Extended Memory

AMI BIOS

EC000-EFFFF

EA000-EBFFF

E9000-E9FFF

E8000-E8FFF

E0000-E7FFF

C8000-DFFFF

Boot Block

ESCD (Plug and Play configuration area)

Reserved for BIOS

OEM LOGO Area

BIOS Reserved

32K

96K

Available HI DOS memory (open to ISA and

PCI bus)

640K-799K

639K

A0000-C7FFF

9FC00-9FFFF

160K

Video memory and BIOS

Extended BIOS Data (moveable by QEMM^†,

386MAX^†)

512K-638K

0K-511K

80000-9FBFF

00000-7FFFF

127K

512K

Extended conventional

Conventional

AP440FX Motherboard Technical Product Specification

2.2 I/O Map

Table 29. I/O Map

Address

(hex)

Size

16 bytes PIIX3 - DMA 1

2 bytes

Description

Size

Description

0000 - 000F

0020 - 0021

0376

1 byte

Sec IDE Chan Cmd Port

Sec IDE Chan Stat Port

PIIX3 - Interrupt Controller 1 0377

002E - 002F 2 bytes

87307 Base Configuration

PIIX3 - Timer 1

0378 - 037F 8 bytes Parallel Port 1

0388 - 038B 4 bytes CS4236 Audio

0040 - 0043

0060

4 bytes

1 byte

Keyboard Controller Byte - 03B0 - 03BB 12 bytes S3 Virge or Virge/DX

Reset IRQ

0061

0064

1 byte

PIIX3 - NMI, speaker control 03BC - 03BF 4 bytes Parallel Port 3

Kbd Controller, CMD/STAT 03C0 - 03DF 32 bytes S3 Virge or Virge/DX

Byte

0070, bit 7

1 bit

PIIX3 - Enable NMI

03E8 - 03EF 8 bytes Serial Port 3

0070, bits 6:0 7 bits

PIIX3 - Real Time Clock,

Address

03F0 - 03F5 6 bytes Floppy Channel 1

0071

1 byte

PIIX3 - Real Time Clock,

Data

03F6

1 byte

Pri IDE Chan Cmd Port

0078

1 byte

Reserved - Brd. Config.

03F7 (Write) 1 byte

Floppy Chan 1 Cmd

0079

03F7, bit 7

1 bit

Floppy Disk Chg Chan 1

Pri IDE Chan Status Port

0080 - 008F

16 bytes PIIX3 - DMA Page Register 03F7, bits

6:0

7 bits

00A0 - 00A1 2 bytes

PIIX3 - Interrupt Controller 2 03F8 - 03FF 8 bytes Onboard Serial Port 1

00C0 - 00DE 31 bytes PIIX3 - DMA 2

04D0 - 04D1 2 bytes Edge/level triggered

LPT + 400h 8 bytes ECP port, LPT + 400h

00F0-00FF

0170 - 0177

16 bytes Math Coprocessor

Compatible I/O Registers

8 bytes Secondary IDE Channel

0608 - 060B* 4 bytes CS4236 Audio

01F0 - 01F7 8 bytes Primary IDE Channel

0CF8**

0CF9

1 byte

PCI Config Address Reg.

0200 - 0207

8 bytes

Game Port

Turbo & Reset control

Reg.

0228 - 022F

8 bytes Parallel Port 3, ECP/EPP

Mode

0CFC-0CFF 4 bytes PCI Config Data Reg

290 - 0297

0240-024F

8 bytes

Management Extension

Hardware

0FE0-0FE7

8 bytes CS4236 Audio

16 bytes CS4236 Audio

Parallel Port 2

8 bytes Serial Port 4

FF00 - FF07 8 bytes IDE Bus Master Reg.

FF80 - FF9F 32 bytes PCI Universal Serial Bus

FFA0 - FFA7 8 bytes IDE primary Channel

FFA8 - FFAF 8 bytes IDE secondary channel

0278 - 027B 4 bytes

02E8-02EF

02F8 - 02FF 8 bytes

0330 - 0331 2 bytes

Onboard Serial Port 2

MPU-401 (MIDI)

* This is only part of one of the Windows Sound System (WSS) selectable ranges. The defined ranges are 0530-0537, 0604-

060B, 0E80-0E87, or 0F40-0F47. Only one of these ranges needs to be used for WSS to work.

** Only by DWORD accesses.

Motherboard Resources

2.3 Soft-Off Control

The motherboard design uses Soft-off control implemented under the SMM code in the BIOS.

Any power supply used with the AP440FX motherboard must support the Soft-off feature. The

ONCTL# pin of the I/O controller is connected to the Soft-off control line in the power supply

circuit. The registers in the I/O controller that set the I/O address and control the ONCTL# pin are

not setup until the SMM code is activated.

2.4 PCI Configuration Space Map

Table 30. PCI Configuration Space Map

Bus Number (hex) Dev Number (hex) Function Number (hex) Description

Intel 82440FX (PMC) Host Bridge

Intel 82371SB (PIIX3 ) ISA bridge

Intel 82371SB (PIIX3 ) IDE Controller

Intel 82371SB (PIIX3) USB

Video Controller

PCI Expansion Slot: user available

PCI Expansion Slot: Optional PCI

Expansion Slot for 3 slot Riser

2.5 DMA Channels

Table 31. DMA Channels

DMA

Data Width

8- or 16-bits

Resource

Open

Audio

Floppy

Parallel Port (for ECP/EPP Config.)

Reserved - Cascade channel

16-bits

Open

AP440FX Motherboard Technical Product Specification

2.6 Interrupts

Table 32. Interrupts

IRQ

NMI

Resource

I/O Channel Check

Reserved, Interval Timer

Reserved, Keyboard buffer full

Reserved, Cascade interrupt from slave PIC

Serial Port 2

Serial Port 1

Audio - Codec

Floppy

Parallel Port 1

Real Time Clock

Audio - FM Synthesis

USB

Video

Onboard Mouse Port if present, else user available

Reserved, Math coprocessor

Primary IDE if present, else user available

Secondary IDE if present, else user available

3 Motherboard BIOS and Setup Utility

3.1 Introduction

The AP440FX motherboard uses an Intel BIOS, which is stored in flash memory and easily

upgraded using a floppy disk-based program. In addition to the Intel BIOS, the flash memory also

contains the Setup utility, Power-On Self Tests (POST), APM 1.2, the PCI auto-configuration

utility, and Windows 95 ready Plug and Play 1.0a. This motherboard also supports BIOS

shadowing, allowing the BIOS to execute from 64-bit onboard write-protected DRAM.

The BIOS displays a sign-on message during POST identifying the type of BIOS and a five-digit

revision code. The initial production BIOS in the motherboard is identified as 1.00.01.CT1.

3.2 BIOS Flash Memory Organization

The Intel PA28FB002BX 2 MB flash component is organized as 256K x 8 (256 KB). The flash

device is divided into seven areas, as described in Table 33.

Table 33. Flash Memory Organization

Address

Flash Memory Area

FFFF0000H

FFFEC000H

FFFEA000H

FFFE9000H

FFFE8000H

FFFE0000H

FFFD0000H

FFFC0000H

FFFFFFFFH

FFFEFFFFH

FFFEBFFFH

FFFE9FFFH

FFFE8FFFH

FFFE7FFFH

FFFDFFFFH

FFFCFFFFH

64 KB Main BIOS

16 KB Boot block (Not flash erasable)

8 KB ESCD Area (Plug and Play data storage area)

4 KB Reserved for BIOS

4 KB OEM Logo Area

32 KB Reserved for BIOS

64 KB Reserved for BIOS

3.3 BIOS Upgrades

Flash memory makes distributing BIOS upgrades easy. A new version of the BIOS can be

installed from a diskette. BIOS upgrades are available to be down loaded from the Intel

Applications Support web site at http://www-cs.intel.com/oem_developer/motherbd/, or from

Intel’s FTP site at ftp://ftp.intel.com/pub/bios/. Be sure to have the BIOS identification that applies

to this motherboard.

AP440FX Motherboard Technical Product Specification

The disk-based Flash upgrade utility, FMUP.EXE, has three options for BIOS upgrades:

•

The Flash BIOS can be updated from a file on a disk.

The current BIOS code can be copied from the Flash EEPROM to a disk file as a backup in the

event that an upgrade cannot be successfully completed.

•

The BIOS in the Flash device can be compared with a file to ensure the computer has the

correct version.

The upgrade utility ensures the upgrade BIOS extension matches the target computer to prevent

accidentally installing a BIOS for a different type of computer.

3.4 PCI IDE Support

The two local bus IDE connectors with independent I/O channel support are setup up automatically

by the BIOS if the user selects “Autoconfiguration” in Setup. The IDE interface supports PIO

Mode 3, and Mode 4 hard drives and recognition of ATAPI CD-ROMs, tape drives, and any other

ATAPI devices. The BIOS determines the capabilities of each drive and configures them to

optimize capacity and performance. For the high capacity hard drives typically available, the drive

is automatically configured for Logical Block Addressing (LBA) for maximum capacity and to

PIO Mode 3 or 4 depending on the capability of the drive. The user can override the auto-

configuration options by using the manual mode setting. The ATAPI Specification Revision 2.5

recommends that an ATAPI device be configured as shown in Table 34.

Table 34. Recommendations for Configuring an ATAPI Device

Primary Cable

Drive 0

ATA

Secondary Cable

Drive 1

ATAPI

Drive 0

Drive 1

Normal, no ATAPI

ATA

ATAPI

Disk and CD-ROM for enhanced

IDE systems

ATA

Legacy IDE System with only one

cable

ATAPI

Enhanced IDE with CD-ROM and

a tape or two CD-ROMs

3.5 PCI Auto-Configuration

The PCI auto-configuration utility operates in conjunction with the Setup utility to allow the

insertion and removal of PCI cards without user intervention (Plug and Play). When the computer

is turned on after adding a PCI add-in card, the BIOS automatically configures interrupts, I/O

space, and other parameters. PCI interrupts are distributed to available ISA interrupts that have not

been assigned to an ISA card, or other resources. Those interrupts left set to “available” in Setup

are considered free for PCI add-in card use.

The PCI Auto-Configuration function complies with version 2.10 of the PCI BIOS specification.

Configuration information is stored in ESCD format. The ESCD data may be cleared (i.e., “write

protection” is removed) by setting the CMOS clear jumper to the DOWN (CLR) position.

Motherboard BIOS and Setup Utility

PCI specification 2.1 for add-in card auto-configuration is also a part of the Plug and Play BIOS.

Peer-to-peer hierarchical PCI Bridge 1.0 is supported, and by using an OEM supplied option ROM

or TSR, a PCI-to-PCMCIA bridge capability is possible as well.

3.6 ISA Plug and Play

The BIOS incorporates ISA Plug and Play capabilities as delivered by Plug and Play Release 1.0A

(Plug and Play BIOS V.. 1.0A, ESCD V.. 1.03). When used in conjunction with the ISA

Configuration Utility (ICU) for DOS or Windows 3.x, the computer allows auto-configuration of

Plug and Play ISA cards, PCI cards, and resource management for legacy ISA cards. Because the

BIOS supports configuring devices across PCI bridges, release 1.41 or greater of the ICU must be

used with the motherboard to properly view and change settings. Configuration information is

stored in ESCD format. The ESCD data may be cleared (i.e., “write protection” is removed) by

setting the CMOS clear jumper to the DOWN (CLR) position.

The BIOS also has a setup option to support the Windows 95 run time Plug and Play utilities.

When this option is selected, only devices critical to booting are assigned resources by the BIOS.

Device Node information is available for all devices to ensure compatibility with Windows 95.

Copies of the Intel Architecture Laboratory (IAL) Plug and Play specification may be obtained

from the Intel World Wide Web site at http://www.intel.com/IAL/plugplay/.

3.7 Desktop Management Interface (DMI)

DMI is a method of managing computers in an enterprise. The main component of DMI is the

Management Information Format Database (MIF), which contains information about the computer

and its components. Using DMI, a system administrator can obtain the types, capabilities,

operational status, installation date and other information about the computer’s components. The

DMI specification requires that certain information about the motherboard be made available to an

applications program. This user-defined information is located in a series of data structures which

are accessed in various ways by means of the DMI service layer. Component instrumentation

allows the service layer to gain access to the information stored in the GPNV. The included MIF

database defines the data and provides the method for accessing the information.

The AP440FX BIOS provides the first stage of DMI v. 2.0 support, including static system

configuration information, including motherboard and peripheral data. Future AP440FX product

releases will provide event detection and error logging, achieving the maximum benefit of DMI

with applications such as LANDesk Client Manager from Intel.

AP440FX Motherboard Technical Product Specification

3.8 Advanced Power Management (APM)

This section describes the use of System Management Mode (SMM) by the BIOS. The BIOS

supports APM version 1.2. APM is enabled in BIOS by default; however, the computer must be

configured with an APM driver to utilize the system power saving features. Windows 95 enables

APM automatically upon detecting the presence of the APM BIOS.

The energy saving Standby mode can be initiated by one of the following:

•

a keyboard hot-key sequence set by the user

a time-out period set by the user

a suspend/resume button tied to the front panel sleep connector.

When in Standby mode, the motherboard reduces power consumption by utilizing the Pentium Pro

processor’s SMM capabilities and also spinning down hard drives and turning off VESA DPMS

compliant monitors. The user may select which DPMS mode (Standby, Suspend, or Off) to send

to the monitor in Setup. The ability to respond to external interrupts is fully maintained while in

Standby mode allowing the system to service requests such as an in-coming fax or network

message while unattended. Any keyboard or mouse activity brings the system out of the energy

saving Standby mode. When this occurs the monitor and IDE drives are turned back on

immediately.

Because SMM uses its own address space, the pointers to interrupt service routines in protected

mode do not necessarily point to the executable interrupt service routines when the processor goes

into SMM. Interrupts are disabled upon entry into SMM. Any program that wants to use

interrupts during SMM must provide a valid interrupt service routine and place a pointer to it in an

interrupt descriptor table before renabling interrupts.

Windows 95 places an Energy Star compliant monitor in video standby mode after a period of

system inactivity. Windows 95 uses the motherboard BIOS to put the processor into SMM. The

motherboard BIOS in turn invokes the video BIOS to place the monitor into standby mode. Some

video BIOSes reenable interrupts when they are called but do not ensure that a valid interrupt

service routine is available. If the video BIOS then generates a hardware or software interrupt

while the system is in SMM, in most cases the system will lock up.

3.9 Advanced Power Control (APC)

The BIOS supports APC through the National 87307 Super I/O controller. Two features that have

been implemented are Auto Start On AC Loss and Power-On COM1 Ring. Auto Start On AC

Loss sets the control for returning to the last known state of the computer, or powering down upon

AC power loss to the motherboard. Power-On COM1 Ring sets the control for allowing the

computer to be powered on upon an incoming POTS call to a telephony device configured for

operation on COM1.

Motherboard BIOS and Setup Utility

3.10 Language Support

The BIOS setup screen and help messages are supported in 32 languages. There are 5 languages

available at this time: American English, German, Italian, French, and Spanish. Translation to

other languages may become available at a later date.

3.11 Boot Options

Booting from CD-ROM is supported in adherence to the “El Torito” v. 1.0 bootable CD-ROM

format specification developed by Phoenix Technologies and IBM. Under the Boot Options field

in Setup, CD-ROM is one of four possible boot devices which are defined in priority order. The

default setting is for floppy to be the primary boot device and hard drive to be the secondary boot

device. If CD-ROM is selected, it must be the first device. The third and fourth devices are set to

disabled in the default configuration. The user can add also select network as a boot device. The

network option allows booting from a network add-in card with a remote boot ROM installed.

NOTE

✏

A copy of “El Torito” v. 1.0 is available on the Phoenix Web page

(http://www.ptltd.com/techs/specs.html).

3.12 Flash LOGO Area

The motherboard supports a 4 KB programmable flash user area located at E8000-E8FFF. An

OEM may use this area to display a custom logo. The BIOS accesses the user area just after

completing POST. A utility is available from Intel to assist with installing a logo into flash for

display during POST. Contact your local Intel Sales office or authorized distributor for further

information.

3.13 Setup Enable Jumper

A motherboard configuration jumper controls access to the BIOS Setup utility. By setting the

jumper to the disable position, the user is prevented from accessing the Setup utility during the

POST or at any other time. The message prompting the user to press <F1> to enter Setup is also

disabled.

3.14 Overview of the Setup Menu Screens

The Setup program initially displays the Main menu screen. In each screen there are options for

modifying the computer’s configuration. Select a menu screen by pressing the left <←> or right

<→> arrow keys. Use the up <↑> or down <↓> arrow keys to select items in a screen. Use the

<Enter> key to select an item for modification. For certain items, pressing <Enter> brings up a

subscreen. After you have selected an item, use the arrow keys to modify the setting.

AP440FX Motherboard Technical Product Specification

Table 35. Overview of the Setup Menu Screens

Setup Menu Screen

Description

Main

Set up and modify some of the basic options of a PC, such as time, date,

diskette drives, hard drives.

Advanced

Modify the more advanced features of a PC, such as peripheral configuration

and advanced chipset configuration.

Security

Exit

Specify passwords that can be used to limit access to the computer.

Save or discard changes.

Setup Subscreen

Description

Floppy Options

Configure your diskette drives.

IDE Device Configuration

Boot Options

Configure your IDE devices.

Modify options that affect boot up, such as the boot sequence.

Peripheral Configuration

Modify options that affect the serial ports, the parallel port, and the disk drive

interfaces.

Advanced Chipset

Configuration

Modify options that affect memory and system busses.

Power Management

Configuration

Access and modify APM options.

Plug and Play

Configuration

Modify options that affect the computer’s Plug and Play capabilities.

Event Logging

Configuration

Modify options that affect the computer’s ability to log events such as

parity/ECC errors, POST errors, and system limit errors.

3.14.1 Main BIOS Setup Screen

This section describes the Setup options found on the main menu screen. If you select certain

options from the main screen (e.g., Hard Disk), the Setup program switches to a subscreen for the

selected option.

3.14.1.1 System Date

Specifies the current date. Select the month from a pop-up menu.

3.14.1.2 System Time

Specifies the current time.

3.14.1.3 Floppy Options

When selected, this brings up the Floppy Options menu.

3.14.1.4 Primary IDE Master

Reports if an IDE device is connected to the computer. When selected, this brings up the IDE

Device Configuration subscreen.

Motherboard BIOS and Setup Utility

3.14.1.5 Primary IDE Slave

Reports if an IDE device is connected to the computer. When selected, this brings up the IDE

Device Configuration subscreen.

3.14.1.6 Secondary IDE Master

Reports if an IDE device is connected to the computer. When selected, this brings up the IDE

Device Configuration subscreen.

3.14.1.7 Secondary IDE Slave

Reports if an IDE device is connected to the computer. When selected, this brings up the IDE

Device Configuration subscreen.

3.14.1.8 Language

Specifies the language of the text strings used in the Setup program and the BIOS. The options are

any installed languages.

3.14.1.9 Boot Options

When selected, this brings up the Boot Options subscreen.

3.14.1.10 Video Mode

Reports the video mode. There are no options.

3.14.1.11 Mouse

Reports if a PS/2 mouse is installed or not. There are no options.

3.14.1.12 Base Memory

Reports the amount of base memory. There are no options.

3.14.1.13 Extended Memory

Reports the amount of extended memory. There are no options.

3.14.1.14 BIOS Version

Reports the BIOS identification string. There are no options.

3.14.2 Floppy Options Subscreen

3.14.2.1 Floppy A:

Reports if a floppy drive is connected to the computer. There are no options.

3.14.2.2 Floppy B:

Reports if a second floppy drive is connected to the computer. There are no options.

AP440FX Motherboard Technical Product Specification

3.14.2.3 Floppy A: Type

Specifies the physical size and capacity of the floppy drive. The options are:

•

Disabled

360 KB, 5.25-inch

1.2 MB, 5.25-inch

720 KB, 3.5-inch

1.44/1.25 MB, 3.5-inch (default)

2.88 MB, 3.5-inch.

3.14.2.4 Floppy B: Type

Specifies the physical size and capacity of the floppy drive. The options are:

•

Disabled (default)

360 KB, 5.25-inch

1.2 MB, 5.25-inch

720 KB, 3.5-inch

1.44/1.25 MB, 3.5-inch

2.88 MB, 3.5-inch

3.14.3 IDE Device Configuration Subscreen

There are separate configuration subscreens for the Primary IDE Master, Primary IDE Slave,

Secondary IDE Master and Secondary IDE Slave devices.

3.14.3.1 IDE Device Configuration

Used to manually configure the IDE device or have the computer auto configure it. The options

are:

•

Auto Configured (default)

User Definable

Disabled

If you select User Definable then the Number of Cylinders, Number of Heads, and Number of

Sectors items can be modified.

3.14.3.2 Cylinders

If IDE Device Configuration is set to User Definable, you must type the correct number of

cylinders for your IDE device.

If IDE Device Configuration is set to Auto Configured, this reports the number of cylinders for

your IDE device and cannot be modified.

Motherboard BIOS and Setup Utility

3.14.3.3 Heads

If IDE Device Configuration is set to User Definable, you must type the correct number of heads

for your IDE device.

If IDE Device Configuration is set to Auto Configured, this reports the number of heads for your

IDE device and cannot be modified.

3.14.3.4 Sectors

If IDE Device Configuration is set to User Definable, you must type the correct number of sectors

for your IDE device.

If IDE Device Configuration is set to Auto Configured, this reports the number of sectors for your

IDE device and cannot be modified.

3.14.3.5 Maximum Capacity

Reports the maximum capacity of your IDE device. It is calculated from the number of cylinders,

heads, and sectors. There are no options.

3.14.3.6 IDE Translation Mode

Specifies the IDE translation mode. The options are:

•

Standard CHS (standard cylinder head sector−less than 1024 cylinders)

Logical Block

Extended CHS (extended cylinder head sector−greater than 1024 cylinders)

Auto Detected (BIOS detects IDE drive support for LBA) (default)

CAUTION

Do not change the IDE Translation Mode from the option selected when the hard drive was

formatted. Changing the option can result in corrupted data.

3.14.3.7 Multiple Sector Setting

Sets the number of sectors transferred by an IDE drive per interrupt generated. The options are:

•

Disabled

4 Sectors/Block

8 Sectors/Block

Auto Detected (default)

Check the specifications for your IDE device drive to determine which setting provides optimum

performance for your drive.

3.14.3.8 Fast Programmed I/O Modes

Sets how fast transfers on the IDE interface occur. The options are:

•

Disabled

Auto Detected (default)

If set to Disabled, transfers occur at a less than optimized speed. If set to Auto Detected, transfers

occur at the drive's maximum speed.

AP440FX Motherboard Technical Product Specification

3.14.4 Boot Options Subscreen

This section describes the options available on the Boot Options subscreen.

3.14.4.1 First Boot Device

Sets which drive the computer checks first to find a bootable operating system. The options are:

•

Disabled

Floppy (default)

Hard Disk

CD-ROM

Network

3.14.4.2 Second Boot Device

Sets which drive the computer checks second to find a bootable operating system. The options are:

•

Disabled

Floppy

Hard Disk (default)

Network

3.14.4.3 Third Boot Device

Sets which drive the computer checks third to find a bootable operating system. The options are:

•

Disabled (default)

Floppy

Hard Disk

Network

3.14.4.4 Fourth Boot Device

Sets which drive the computer checks fourth to find a bootable operating system. The options are:

•

Disabled (default)

Floppy

Hard Disk

Network

3.14.4.5 System Cache

Enables or disables both the primary and the secondary cache memory. The options are:

•

Disabled

Enabled (default)

3.14.4.6 Boot Speed

Sets the boot speed. The options are:

•

Deturbo

Turbo (default)

If Turbo is selected, boot-up occurs at full speed. If Deturbo is selected, the board operates at a

slower speed.

Motherboard BIOS and Setup Utility

3.14.4.7 Num Lock

Sets the state of the Num Lock feature on your keyboard when you boot. The options are:

•

Off (default)

3.14.4.8 Setup Prompt

Turns on (or off) the “Press <F1> Key if you want to run Setup” prompt during the power-up

sequence. The options are:

•

Disabled

Enabled (default)

NOTE

✏

This option has no effect on your ability to access the Setup program. It only toggles the prompt.

3.14.4.9 Hard Disk Pre-Delay

Sets the hard disk drive pre-delay. The options are:

•

Disabled (default)

3 seconds

6 seconds

9 seconds

12 seconds

15 seconds

21 seconds

30 seconds

When enabled, this option causes the BIOS to wait the specified time before it accesses the first

hard drive.

If your computer contains a hard drive, and you don’t see the drive type displayed during boot-up,

the hard drive may need more time before it is able to communicate with the controller. Setting a

pre-delay provides additional time for the hard drive to initialize.

3.14.4.10 Typematic Rate Programming

Sets the typematic rates. The options are:

•

Default (default)

Override

Choosing Override enables the Typematic Rate Delay and Typematic Rate setup options.

AP440FX Motherboard Technical Product Specification

3.14.4.11 Typematic Rate Delay

Sets how long it takes (in milliseconds) for the key-repeat function to start when you hold down a

key on the keyboard. The options are:

•

250 msec (default)

500 msec

750 msec

1000 msec

If Typematic Rate Programming is set to Default, this option is not visible.

3.14.4.12 Typematic Rate

Sets the speed (in characters per second) at which characters repeat when you hold down a key on

the keyboard. The higher the number, the faster the characters repeat. The options are:

•

6 char/sec (default)

8 char/sec

10 char/sec

12 char/sec

15 char/sec

20 char/sec

24 char/sec

30 char/sec

If Typematic Rate Programming is set to Default, this option is not visible.

3.14.4.13 Scan User Flash Area

Scans the user Flash area for ROMs. The options are:

•

Disabled

Enabled (default)

3.14.4.14 Quick Mode

Enables the user to speed up the boot process. The options are:

•

Disabled (default)

Enabled

3.14.5 Advanced Screen

This section describes the Setup options found on the Advanced menu screen. If you select certain

options from the Advanced screen (e.g., Peripheral Configuration), the Setup program switches to a

subscreen for the selected option. Subscreens are described in the sections following the

description of the Advanced screen options.

3.14.5.1 Processor Type

Reports the microprocessor type. There are no options.

Motherboard BIOS and Setup Utility

3.14.5.2 Processor Speed

Reports the microprocessor clock speed. There are no options.

3.14.5.3 Cache Size

Reports the size of the secondary cache. There are no options. If your computer contains no L2

cache, this item does not appear.

3.14.5.4 Peripheral Configuration

When selected, this brings up the Peripheral Configuration subscreen.

3.14.5.5 Advanced Chipset Configuration

When selected, this brings up the Advanced Chipset Configuration subscreen.

3.14.5.6 Power Management Configuration

When selected, this brings up the Power Management subscreen.

3.14.5.7 Plug and Play Configuration

When selected, this brings up the Plug and Play Configuration subscreen.

3.14.6 Event Logging Configuration

This section describes the options available in the Event Logging Configuration subscreen.

3.14.7 Peripheral Configuration Subscreen

This section describes the screens for the peripheral configuration subscreen.

3.14.7.1 Primary PCI IDE Interface

Enables or disables the Primary PCI IDE interface. The options are:

•

Disabled

Auto Configured (default)

3.14.7.2 Secondary PCI IDE Interface

Enables or disables the Secondary PCI IDE interface. The options are:

•

Disabled

Auto Configured (default)

3.14.7.3 Floppy Interface

Enables or disables the diskette drive interface. The options are:

•

Disabled

Enabled

Auto Configured (default)

AP440FX Motherboard Technical Product Specification

3.14.7.4 Serial Port 1 Interface

Configures serial port 1. The options are described and listed in Table 36. The default option is

Auto Configured.

If the Configuration Mode is set to Auto Configured, the Setup program assigns the first free COM

port (normally COM1, 3F8h) to serial port 1.

Table 36. Serial Port Configuration Options

Option

Description

Disable

Port not enabled

COM1, 3F8, IRQ4

COM2, 2F8, IRQ3

COM3, 3E8, IRQ4

COM4, 2E8, IRQ3

COM1, 3F8, IRQ3

COM2, 2F8, IRQ4

COM3, 3E8, IRQ3

COM4, 2E8, IRQ4

Auto Configured

Enabled as COM1 at indicated I/O address and IRQ

Enabled as COM2 at indicated I/O address and IRQ

Enabled as COM3 at indicated I/O address and IRQ

Enabled as COM4 at indicated I/O address and IRQ

Enabled as COM1 at indicated I/O address and IRQ

Enabled as COM2 at indicated I/O address and IRQ

Enabled as COM3 at indicated I/O address and IRQ

Enabled as COM4 at indicated I/O address and IRQ

Port will be auto configured (Default option)

3.14.7.5 Serial Port 2 Address

Configures serial port 2. The options are described and listed in Table 36. The default option is

Auto Configured. If the Configuration Mode is set to Auto Configured, the Setup program assigns

the first free COM port (normally COM2, 2F8h) to serial port 2.

NOTE

✏

If either serial port address is set, the address it is set to does not appear in the options dialog box

of the other serial port.

3.14.7.6 Serial Port 2 IR Mode

Makes Serial Port 2 available to infrared applications. The options are:

•

Disabled (default)

Enabled

Motherboard BIOS and Setup Utility

3.14.7.7 Parallel Port Interface

Selects the address and IRQ of the parallel port. The options are described and listed in Table 37.

If the Configuration Mode is set to Auto Configured, the Setup program assigns LPT1, 378h, IRQ7

to the parallel port.

Table 37. Parallel Port Configuration Options

Option

Description

Disabled

Port not enabled

LPT3, 3BC, IRQ7

LPT1, 378, IRQ7

LPT2, 278, IRQ7

LPT3, 3BC, IRQ5

LPT1, 378, IRQ5

LPT2, 278, IRQ5

Auto Configured

Enabled as LPT3 at indicated I/O address and IRQ

Enabled as LPT1 at indicated I/O address and IRQ

Enabled as LPT2 at indicated I/O address and IRQ

Enabled as LPT3 at indicated I/O address and IRQ

Enabled as LPT1 at indicated I/O address and IRQ

Enabled as LPT2 at indicated I/O address and IRQ

Port will be auto configured (Default option)

3.14.7.8 Parallel Port Type

Selects the mode for the parallel port. The options are:

•

Compatible (default)

Bi-directional

ECP

EPP

Compatible means the parallel port operates in AT-compatible mode. Bi-directional means the

parallel port operates in bi-directional PS/2-compatible mode. EPP and ECP mean the parallel port

operates high-speed, bi-directionally.

AP440FX Motherboard Technical Product Specification

Table 38 lists and describes the options that are available if the parallel port mode is ECP.

Table 38. ECP - Compatible Configuration Options

Option

Description

Disable

Port not enabled

LPT1, 378, IRQ7, DMA3

LPT2, 278, IRQ7, DMA3

LPT1, 378, IRQ5, DMA3

LPT2, 278, IRQ5, DMA3

LPT1, 378, IRQ7, DMA1

LPT2, 278, IRQ7, DMA1

LPT1, 378, IRQ5, DMA1

LPT2, 278, IRQ5, DMA1

LPT3, 228, IRQ7, DMA3

LPT3, 228, IRQ5, DMA3

LPT3, 228, IRQ7, DMA1

LPT3, 228, IRQ5, DMA1

Auto Configured

Enabled as LPT1 at indicated I/O address, IRQ, and DMA channel.

Enabled as LPT2 at indicated I/O address, IRQ, and DMA channel.

Enabled as LPT1 at indicated I/O address, IRQ, and DMA channel.

Enabled as LPT2 at indicated I/O address, IRQ, and DMA channel.

Enabled as LPT1 at indicated I/O address, IRQ, and DMA channel.

Enabled as LPT2 at indicated I/O address, IRQ, and DMA channel.

Enabled as LPT1 at indicated I/O address, IRQ, and DMA channel.

Enabled as LPT2 at indicated I/O address, IRQ, and DMA channel.

Enabled as LPT3 at indicated I/O address, IRQ, and DMA channel.

Port will be auto configured (default option)

3.14.7.9 USB Interface

Enables or disables the USB interface. The options are:

•

Disabled

Enabled default)

3.14.7.10 Audio Interface

Enables or disables the onboard audio subsystem. The options are:

•

Disabled

Enabled (frees the I/O resources and addresses used to support the audio interface)

(default)

3.14.7.11 Hardware Monitor Interface

Enables or disables the Hardware Monitor Controller. The options are:

•

Disabled

Enabled (default)

3.14.7.12 Primary PCI IDE Status

Displays the current status of the Primary PCI IDE Interface from the selectable setting above.

This is an informational field and is not accessible.

Motherboard BIOS and Setup Utility

3.14.7.13 Secondary PCI IDE Status

Displays the current status of the Secondary PCI IDE Interface from the selectable setting above.

This is an informational field and is not accessible.

3.14.7.14 Floppy Status

Reports the current status of the floppy drive from the selectable setting above. There are no

options.

3.14.7.15 Serial Port 1 Status

Reports the current status of serial port 1 from the selectable setting above. There are no options.

3.14.7.16 Serial Port 2 Status

Reports the current status of serial port 2 from the selectable setting above. There are no options.

3.14.7.17 Parallel Port Status

Reports the current status of the parallel port from the selectable setting above. There are no

options.

3.14.8 Advanced Chipset Configuration Subscreen

This section describes the options available on the Advanced Chipset Configuration Subscreen.

3.14.8.1 Base Memory Size

Sets the size of the base memory. The options are:

•

512 KB

640 KB (default)

3.14.8.2 ISA LFB Size

Sets the size of the linear frame buffer. The options are:

•

Disabled (default)

1 MB

If this is set to 1 MB, the ISA LFB Base Address field appears.

3.14.8.3 ISA LFB Base Address

Reports the base address of the LFB. There are no options.

The base address is 16 MB minus the ISA LFB size value. This field does not appear if the ISA

LFB Size is set to Disabled.

AP440FX Motherboard Technical Product Specification

3.14.8.4 Onboard Video IRQ

Enables or disables the onboard video IRQ. The options are:

•

Disabled (default)

Enabled

3.14.8.5 Video Palette Snoop

Controls the ability of a primary PCI graphics controller to share a common palette with an ISA

add-in video card. Some add-in cards that use the VESA feature connector might need this feature

enabled. The options are:

•

Disabled (default)

Enabled

3.14.8.6 ISA VGA Write Combining

Enables or disables the ISA VGA write combining. Enabling this feature provides faster video

performance by combining processor writes to video memory. The options are:

•

Disabled

Enabled (default)

3.14.8.7 Latency Timer (PCI Clocks)

Sets the length of time (in PCI clocks) an agent on the PCI bus can hold the bus when another

agent has requested the bus. The options are:

•

Auto Configured (default)

104

112

120

128

Motherboard BIOS and Setup Utility

3.14.8.8 Memory Error Detection

Sets the type of error detection or correction. The options are:

•

Disabled (default)

ECC

Parity

This field appears if either ECC or Parity SIMMs are detected. Parity and ECC SIMMs can be

configured to run either as Parity or ECC (e.g. Parity SIMMs may be configured to run in ECC

mode.)

3.14.8.9 Bank 0

Reports the type of memory found in the Bank 0 SIMM slots. There are no options.

3.14.8.10 Bank 1

Reports the type of memory found in the Bank 1 SIMM slots. There are no options.

3.14.9 Power Management Configuration Subscreen

This section describes the options available on the Power Management Subscreen.

3.14.9.1 Advanced Power Management (APM)

Enables or disables the APM support in your computer’s BIOS. The options are:

•

Disabled

Enabled (default)

Power Management only works with APM-capable operating systems to manage power

consumption in your computer.

3.14.9.2 IDE Drive Power Down

Spins down IDE drives when the computer goes into power managed mode. The options are:

•

Disabled

Enabled (default)

This field does not appear if APM is disabled.

3.14.9.3 VESA Video Power Down

Sets any VESA compliant monitor to be power managed when the computer goes into power

managed mode. The options are:

•

Disabled

Standby

Suspend

Sleep (default)

This field does not appear if APM is disabled.

AP440FX Motherboard Technical Product Specification

3.14.9.4 Inactivity Timer (Minutes)

Sets how long the computer must be inactive before it enters power managed mode. Enter the

number of minutes. The range is 0 to 255 minutes. The default is 10 minutes.

This field does not appear if APM is disabled.

3.14.9.5 Hot Key (CTRL - ALT-)

Sets the hot key that, when pressed while holding down the <Ctrl> and <Alt> keys, causes the

computer to enter power managed mode. All alphanumeric keys are valid.

This field does not appear if APM is disabled.

3.14.9.6 Auto Start On AC Loss

Enables returning to the last known state of the computer, or powering down upon AC power loss

to the motherboard. The options are:

•

Disabled

Enabled (default)

3.14.9.7 Power-On COM1 Ring

Enables the computer to power on upon an incoming POTS call to a telephony device configured

for operation on COM1. The options are:

•

Disabled (default)

Enabled

3.14.10 Plug and Play Configuration Subscreen

This section describes the options found on the Plug and Play configuration subscreen.

3.14.10.1 Configuration Mode

Sets how the BIOS gets information about ISA cards that do not have Plug and Play capabilities.

The options are:

•

Use BIOS Setup

Use PnP OS (default)

If Use PnP OS is selected, the BIOS will depend on run-time software to ensure that there are no

conflicts between ISA boards with Plug and Play capabilities and those without. Only the Boot

With PnP OS will be visible.

3.14.10.2 PnP OS

Enables the computer to select the type of PnP OS to boot from. The options are:

•

Disabled

Other PnP OS

Windows 95 (default)

Motherboard BIOS and Setup Utility

3.14.10.3 ISA Shared Memory Size

Sets a range of memory addresses that will be directed to the ISA bus rather than on-board

memory. The options are:

•

Disabled (default)

16 KB

32 KB

48 KB

64 KB

80 KB

96 KB

If this is set to Disabled, the ISA Shared Memory Base Address (described below) will not be

visible.

This field should be set to Enabled only when a non Plug and Play ISA card (legacy card) that

requires non-ROM memory space is used. LAN cards that have on-board memory buffers are one

example of this; video capture cards that have video buffer memory are another.

By default, allocation of upper memory is as follows: memory from C0000-C7FFF is

automatically shadowed. (This memory range is typically reserved for video BIOS.) Memory

from C8000-DFFFFh is initially unshadowed. The BIOS scans this range for any ISA expansion

card BIOS that may be present and notes the location and size. The BIOS will then autoconfigure

the PCI and Plug and Play devices, shadowing the ROM requirements (other than video) into the

area above E0000h until that area is full. It will then assign additional PCI and Plug and Play

expansion cards to the area between C8000h and DFFFFh. If an ISA legacy card has non-ROM

memory requirements, the autoconfigure routine may write into an area that is needed by the ISA

expansion card. The ISA Shared Memory Size parameter signifies the autoconfigure routine that

this block of memory is reserved and should not be shadowed.

Shadowing is a technique that copies a block of memory from an add-in card’s ROM to the same

address in system memory. This provides faster access and achieves higher performance. By

default, all upper memory is shadowed.

3.14.10.4 ISA Shared Memory Base Address

Sets the base address for the ISA Shared Memory. The options are:

•

C8000h (default)

CC000h

D0000h

D4000h

D8000h

DC000h

This setting could affect the ISA Shared Memory Size item. The value entered in the ISA Shared

Memory Size item cannot extend to the E0000h address.

For example, if a size of 64K is selected, options D4000h, D8000h, and DC000h are not available.

If the ISA Shared Memory Size is set to Disabled, this field will not appear.

AP440FX Motherboard Technical Product Specification

3.14.10.5 IRQ 3, 4, 5, 7, 9, 10, 11, 12, 14, 15

Sets the status of the IRQ. The options are:

•

Available (default)

Used By ISA Card

The PCI auto-configuration code looks here to see if these interrupts are available for use by a PCI

or Plug and Play device.

If an interrupt is available, the PCI auto-configuration code or the PnP configuration agent can

assign the interrupt to be used by the PCI or PnP device.

If your computer contains a legacy ISA agent that uses one of these interrupts, select Used By ISA

Card for that interrupt. This lets PCI and PnP cards know that the marked interrupts are not

available for their use.

NOTE

✏

IRQ 3, 4, 5, and 7 may not be available in this option, depending on the setting chosen for the

COM1, COM2 and parallel ports in the Peripheral Configuration Subscreen. IRQ 14 and 15 may

not be available if the Primary and Secondary IDE ports are enabled.

3.14.11 Event Logging Configuration

This section describes the options available in the Event Logging Configuration subscreen.

3.14.11.1 Event Log Capacity

This information field tells whether the log is full.

3.14.11.2 Event Count Granularity

Defines the number of log events that must occur before the event log is updated. The default is 10

events.

3.14.11.3 Event Time Granularity (Minutes)

Defines the amount of time that must pass before the event log is updated. The default is 30

minutes.

3.14.11.4 Event Log Control

Allows users to enable or disable event logging. The options are:

•

All Events Enabled (default)

ECC Events Disabled

All Events Disabled

Motherboard BIOS and Setup Utility

3.14.11.5 Clear Event Log

Sets a flag that clears the event log on the next pass through the POST. The options are:

•

Keep (default)

On Next Boot

3.14.11.6 Mark Existing Events as Read

Marks all events already in the log as having been not read (Do Not Mark) or read (Mark). The

options are:

•

Do Not Mark (default)

Mark

3.14.11.7 Event Log Subscreens

The bottom of the Event Log screen includes several information fields that display information

about the date and time of the last event of a specific type, as well as a count of how many events

of that type are logged. Selecting a field and pressing <Enter> brings up a subscreen that shows

information specific to that event type. Event types for which subscreens are available include:

•

Single Bit ECC Events

Multiple Bit ECC Events

Pre-Boot Events

The subscreens presented for each of these event types are described in Table 39. Note that the

initial three lines of information for all screens cover the same information.

Table 39. Event Log Subscreens

Event Type

Subscreen Detail

Date of Last Occurrence

Single Bit ECC Events

None (initial value)

Time of Last Occurrence

Total Count of Events/Errors

Memory Bank with Errors

Multiple Bit ECC Events *

Pre-Boot Events *

Date of Last Occurrence

Time of Last Occurrence

Total Count of Events/Errors

Memory Bank with Errors

None (initial value)

Date of Last Occurrence

Time of Last Occurrence

Total Count of Events/Errors

POST ERRORS FOUND:

None (initial value)

AP440FX Motherboard Technical Product Specification

3.14.12 Security Screen

This section describes the two access modes that can be set using the options found on the Security

screen, and then describes the Security screen options themselves.

3.14.12.1 Administrative and User Access Modes

The options on the Security screen menu enable you to restrict access to the Setup program by

enabling you to set passwords for two different access modes: Administrative mode and User

mode.

In general, Administrative mode has full access to the Setup fields, whereas User mode has

restricted access to the options. Thus, by setting separate Administrative and User passwords, a

system administrator can limit who can change critical Setup values. The actual limitations depend

on whether either the Administrative or User passwords or both are set.

To limit access to who can boot the computer, set the User password. This is the password that the

computer asks for before booting. If only the Administrative password is set, the computer boots

up without asking for a password. If both passwords are set, you can enter either password to boot

the computer.

Table 40 shows the effects of setting the Administrative and User passwords. (The table is for

reference only, and is not shown on the Security screen.) In the table, the statement “Can change a

limited number of options” means you can change the date and time, the power management hot

key, the User password, the security hot key, and unattended start.

Table 40. Administrative and User Password Functions

Password Required

Password Set

Administrative mode can . . . User mode can . . .

During Boot Process

Neither

Can change all options*

None

Administrative only Can change all options

Can change a limited

number of options

User only

Both

N/A

Can change all options

User

Can change all options

Can change a limited

number of options

Administrative or User

* If no password is set, any user can change all Setup options.

3.14.13 Security Screen Options

3.14.13.1 User Password

Reports if there is a User password set. There are no options.

3.14.13.2 Administrative Password

Reports if there is an Administrative password set. There are no options.

3.14.13.3 Enter Password

Sets the User password. The password can be up to seven alphanumeric characters.

Motherboard BIOS and Setup Utility

3.14.13.4 Set Administrative Password

Sets the Administrative password. The password can be up to seven alphanumeric characters.

3.14.14 Exit Screen

This section describes the different ways to exit and save or not save changes made in the Setup

program.

3.14.14.1 Exit Saving Changes

Saves the changes to CMOS RAM and exits the Setup program. You can also press the <F10> key

anywhere in the Setup program to initiate this.

3.14.14.2 Exit Discarding Changes

Exits the Setup program without saving any changes. This means that any changes made while in

the Setup program are discarded and NOT SAVED. Pressing the <Esc> key in any of the four

main screens initiates this activity.

3.14.14.3 Load Setup Defaults

Resets all of the Setup options to their defaults. You can also press the <F5> key anywhere in the

Setup program to initiate this.

This selection loads the default Setup values from the ROM table.

3.14.14.4 Discard Changes

Discards any changes you made during the current Setup session without exiting the program. You

can also press the <F6> key anywhere in the Setup program to initiate this.

This selection loads the CMOS RAM values that were present when the computer was turned on.

4 Error Messages and Beep Codes

4.1 BIOS Beep Codes

Table 41. BIOS Beep Codes

Beeps

Error Message

Description

Refresh Failure

The memory refresh circuitry on the motherboard is faulty.

A parity error has been detected.

Memory failure in the first 64 KB.

Parity Error

Base 64 KB Memory Failure

Timer Not Operational

Memory failure in the first 64 KB of memory, or Timer 1 on the

motherboard is not functioning.

Processor Error

Gate A20 Failure

The microprocessor on the motherboard generated an error.

The keyboard controller might be bad. The BIOS cannot switch

to protected mode.

Processor Exception Interrupt

Error

The microprocessor generated an exception interrupt.

Display Memory Read/Write

Error

The video adapter is either missing or its memory is faulty.

This is not a fatal error.

ROM Checksum Error

ROM checksum value does not match the value encoded in

BIOS.

CMOS Shutdown Register

Read/Write Error

The shutdown register for CMOS RAM failed.

4.2 PCI Configuration Error Messages

The following PCI messages are displayed as a group with bus, device and function information.

Table 42. PCI Configuration Error Messages

Error Message

Explanation

NVRAM Checksum Error, NVRAM

Cleared

The ESCD data was reinitialized because of an NVRAM

checksum error. Try rerunning the ICU.

System Board Device Resource

Conflict

A non Plug and Play ISA card has requested a resource that is

already in use.

Primary Output Device Not Found

Primary Input Device Not Found

Primary Boot Device Not Found

The designated primary output device (printer, modem, or other, if

output is redirected) could not be found.

The designated primary input device (keyboard, mouse, or other,

if input is redirected) could not be found.

The designated primary boot device (hard disk drive, diskette

drive, or CD-ROM drive) could not be found.

^continued☛

AP440FX Motherboard Technical Product Specification

Table42. PCI Configuration Error Messages (continued)

Error Message

Explanation

NVRAM Cleared By Jumper

The “Clear CMOS” jumper has been moved to the “CLR” position

and CMOS RAM has been cleared.

NVRAM Data Invalid, NVRAM Cleared Invalid entry in the ESCD.

Static Device Resource Conflict

A non Plug and Play ISA card has requested a resource that is

already in use.

PCI Error Log is Full

If and when more than 15 PCI conflict errors are detected the log

full message is displayed. If this message displays, no additional

PCI errors can be logged.

Floppy Disk Controller Resource

Conflict

The floppy disk controller has requested a resource that is already

in use.

Primary IDE Controller Resource

Conflict

The primary IDE controller has requested a resource that is

already in use.

Secondary IDE Controller Resource

Conflict

The secondary IDE controller has requested a resource that is

already in use.

Parallel Port Resource Conflict

Serial Port 1 Resource Conflict

Serial Port 2 Resource Conflict

The parallel port has requested a resource that is already in use.

Serial port 1 has requested a resource that is already in use.

Serial port 2 has requested a resource that is already in use.

The following PCI messages are chained together to give an error message.

Table 43. Chained PCI Error Messages

Error Message

Explanation

PCI resource name Conflict: Bus: aa, A PCI resource conflict has been detected. The full message Is

Device bb, Function: cc

where:

formed by chaining the fixed text with the variable text indicated by

italics. Each message variation provides details on the type of

resource conflict, and detailed information on the bus, device, and

function associated with the resource conflict.

PCI I/O Port Conflict:

Two devices requested the same I/O port, resulting in a conflict.

PCI Memory Conflict:

PCI IRQ Conflict:

Bus: aa

Two devices requested the same memory address, resulting in a

conflict.

Two devices requested the same IRQ address, resulting in a

conflict.

Is a hexadecimal number corresponding to the PCI bus number.

For desktop motherboards, the bus number is 00.

Device: bb

Is a hexadecimal number corresponding to the PCI device.

Function: cc

Is a hexadecimal number corresponding to the active PCI function

within a device.

Error Messages and Beep Codes

4.3 BIOS Error Messages

Table 44. BIOS Error Messages

Error Message

Gate A20 Error

Explanation

Gate A20 on the keyboard controller is not working.

Address Line Short!

Error in the address decoding circuitry on the motherboard.

Cache memory is defective. Replace it.

Cache Memory Bad, Do Not

Enable Cache!

CH-2 Timer Error

There is an error in timer 2.

CMOS Battery State Low

CMOS RAM is powered by a battery. The battery power is low. Replace

the battery.

CMOS Checksum Failure

After CMOS RAM values are saved, a checksum value is generated for

error checking. The previous value is different from the current value. Run

Setup.

CMOS System Options Not

Set

The values stored in CMOS RAM are either corrupt or nonexistent. Run

Setup.

CMOS Display Type

Mismatch

The video type in CMOS RAM does not match the type detected by the

BIOS. Run Setup.

CMOS Memory Size

Mismatch

The amount of memory on the motherboard is different than the amount in

CMOS RAM. Run AMIBIOS Setup.

CMOS Time and Date Not

Set

Run Setup to set the date and time in CMOS RAM.

Diskette Boot Failure

The boot disk in floppy drive A: is corrupt. It cannot be used to boot the

computer. Use another boot disk and follow the screen instructions.

Display Switch Not Proper

The display jumper is not implemented on this product. This error should

not occur.

DMA Error

Error in the DMA controller.

DMA #1 Error

Error in the first DMA channel.

Error in the second DMA channel.

DMA #2 Error

FDD Controller Failure

The BIOS cannot communicate with the floppy disk drive controller. Check

all appropriate connections after the computer is powered down.

HDD Controller Failure

The BIOS cannot communicate with the hard disk drive controller. Check

all appropriate connections after the computer is powered down.

INTR #1 Error

Interrupt channel 1 failed POST.

Interrupt channel 2 failed POST.

INTR #2 Error

Invalid Boot Diskette

The BIOS can read the disk in floppy drive A:, but cannot boot the

computer. Use another boot disk.

Keyboard Is Locked...Unlock The keyboard lock on the computer is engaged. The computer must be

unlocked to continue.

KB/Interface Error

On Board Parity Error

There is an error in the keyboard connector.

Parity error detected in memory.

AP440FX Motherboard Technical Product Specification

4.4 ISA NMI Messages

Table 45. ISA NMI Messages

ISA NMI Message

Explanation

Memory Parity Error at xxxxx Memory failed. If the memory location can be determined, it is displayed as

xxxxx. If not, the message is Memory Parity Error ????.

I/O Card Parity Error at xxxxx An expansion card failed. If the address can be determined, it is displayed

as xxxxx. If not, the message is I/O Card Parity Error ????.

DMA Bus Time-out

A device has driven the bus signal for more than 7.8 microseconds.

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