AOpen AX4TII User Manual

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Overview

AX4T II

DOC. NO.: AX4T2-OL-E0408C

Installation

Hardware

Drivers &

Utilities

BIOS Setup

AWARD

Glossary

Troubleshooting &

Technical Support

AAXX44TT IIII OOnnlliinnee MMaannuuaal

WWhhaatt’’ss iinn tthhiiss mmaannuuaall

AX4T II .............................................................................................................................................1

What’s in this manual ......................................................................................................................................................2

You Must Notice ..............................................................................................................................................................8

Before You Start..............................................................................................................................................................9

Overview .......................................................................................................................................................................10

Feature Highlight...........................................................................................................................................................11

Quick Installation Procedure..........................................................................................................................................14

Motherboard Map ..........................................................................................................................................................15

Block Diagram ...............................................................................................................................................................16

Hard war e Ins tal lat ion..................................................................................................................17

About “Optional” and “Upgrade Optional”…................................................................................................................... 18

JP14 Clear CMOS Data .................................................................................................................................................1 9

CPU Installation ............................................................................................................................................................. 20

CPU Jumper-less Design............................................................................................................................................... 22

CPU and Housing Fan Connector (with H/W Monito ring) ...............................................................................................2 5

RIMM Sockets ...............................................................................................................................................................27

Front Panel Connector ..................................................................................................................................................31

ATX Power Connector ................................................................................................................................................... 32

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AC Power Auto Recovery ..............................................................................................................................................33

IDE, Floppy AND IDE RAID (Optional) Connector .........................................................................................................34

JP7 Raid Select Jumper (Optional ) ................................................................................................................................ 36

IrDA Connector ..............................................................................................................................................................37

AGP (Accelerated Graphic Port) Pro Expansion Slot..................................................................................................... 38

CNR (Communication and Network Riser) Expansi on Slot ............................................................................................39

Support Intel

PC99 Color Coded Back Panel......................................................................................................................................41

Support 2

Chassis Intrusion Sensor...............................................................................................................................................43

CD Audio Connector......................................................................................................................................................44

Modem Audio Connector ...............................................................................................................................................45

Front Audio Connector...................................................................................................................................................46

Battery-less and Long Life Design ................................................................................................................................. 47

Over-current Protection .................................................................................................................................................48

Hardware Monitoring .....................................................................................................................................................49

Resettable Fuse ............................................................................................................................................................50

Low ESR Capacitor .......................................................................................................................................................51

Layout (Frequency Isolation Wall) .................................................................................................................................53

PRO/100 Network Connection (Optional)................................................................................................ 40

USB Port.....................................................................................................................................................42

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Pure Aluminum Heatsink ............................................................................................................................................... 54

Driver and Utility..........................................................................................................................55

Auto-run Menu from Bonus CD Disc .............................................................................................................................. 56

Eliminate “?” mark from Windows 95/ 98 ........................................................................................................................57

Installing Intel IAA Driver ...............................................................................................................................................58

Installing Onboard LAN Driver (Optional) ......................................................................................................................59

Installing Onboard Sound Driver....................................................................................................................................60

Installing Hardware Monitoring Uti lity ............................................................................................................................61

ACPI Suspend to Hard Drive......................................................................................................................................... 62

ACPI Suspend to RAM (STR)........................................................................................................................................66

AWARD BIOS ................................................................................................................................68

About BIOS Function Description…...............................................................................................................................69

How To Use Award™ BIOS Setup Prog ram...................................................................................................................70

How To Enter BIOS Setu p .............................................................................................................................................72

BIOS Upgrade ...............................................................................................................................................................73

Overclocking ................................................................................................................................75

VGA Card & Hard Disk ..................................................................................................................................................76

Glossary .......................................................................................................................................7 7

AC97 .............................................................................................................................................................................77

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ACPI (Advanced Configuratio n & Power Interfac e) ........................................................................................................77

AGP (Accelerated Graphic Port)....................................................................................................................................77

AMR (Audio/Modem Riser)............................................................................................................................................78

AOpen Bonus Pack CD .................................................................................................................................................78

APM (Advanced Power Management)........................................................................................................................... 78

ATA (AT Attachment)......................................................................................................................................................78

ATA/66...........................................................................................................................................................................7 8

ATA/100......................................................................................................................................................................... 7 9

BIOS (Basic Input/Output Sys tem) ................................................................................................................................ 79

Bus Master IDE (DMA mode).........................................................................................................................................79

CNR (Communication and Networki ng Riser)................................................................................................................79

CODEC (Coding and Decoding) ....................................................................................................................................80

DDR (Double Data Rated) SDRAM................................................................................................................................80

DIMM (Dual In Line Memory Module) ............................................................................................................................80

DMA (Direct Memory Access) ........................................................................................................................................ 80

ECC (Error Checking and Correction)............................................................................................................................81

EDO (Extended Data Output) Memory...........................................................................................................................81

EEPROM (Electronic Erasable Programmab le ROM)....................................................................................................81

EPROM (Erasable Programmabl e ROM).......................................................................................................................81

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EV6 Bus ........................................................................................................................................................................82

FCC DoC (Declaration of Conformity)............................................................................................................................ 82

FC-PGA (Flip Chip-Pin Grid Array) ................................................................................................................................82

Flash ROM ....................................................................................................................................................................82

FSB (Front Side Bus) Clock ...........................................................................................................................................8 3

C Bus ..........................................................................................................................................................................83

IEEE 1394 .....................................................................................................................................................................83

Parity Bit........................................................................................................................................................................84

PBSRAM (Pipelined Burst S RAM) .................................................................................................................................84

PC-100 DIMM ................................................................................................................................................................ 84

PC-133 DIMM ................................................................................................................................................................ 84

PC-1600 or PC-2100 DDR DRAM .................................................................................................................................84

PCI (Peripheral Component Interface) Bus.................................................................................................................... 8 5

PDF Format...................................................................................................................................................................85

PnP (Plug and Play) ......................................................................................................................................................85

POST (Power-On Self Test) ........................................................................................................................................... 85

RDRAM (Rambus DRAM).............................................................................................................................................. 86

RIMM (Rambus Inline Memory Module)......................................................................................................................... 86

SDRAM (Synchronous DRAM) ......................................................................................................................................86

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Shadow E

SIMM (Single In Li ne M emory Mod ule).......................................................................................................................... 87

SMBus (System Management Bus) ...............................................................................................................................87

SPD (Serial Presence Detect ) .......................................................................................................................................87

Ultra DMA ...................................................................................................................................................................... 88

USB (Universal Serial B us) ............................................................................................................................................ 8 8

VCM (Virtual Channel Memory).....................................................................................................................................89

ZIP file...........................................................................................................................................................................89

Troubleshooting........................................................................................................................... 9 0

Technical Support ........................................................................................................................94

Product Registration....................................................................................................................97

How to Conta ct Us.......................................................................................................................98

PROM ..........................................................................................................................................................86

AAXX44TT IIII OOnnlliinnee MMaannuuaal

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Adobe, the Adobe logo, Acrobat is trademarks of Adobe Systems Incorporated. AMD, the AMD logo, Athlon and Duron are trademarks of Advanced Micro Devices, Inc. Intel, the Intel logo, Intel Celeron, Pentium II, Pentium III are trademarks of Intel Corporation. Microsoft, Windows, and Windows logo are either registered trademarks or trademarks of Microsoft Corporation in the United

States and/or other countries. All product and brand names used on this manual are used for identification purposes only and may be the registered

trademarks of their respective owners.

All of the specifications and information contained in this manual are subject to change without notice. AOpen reserves the right to revise this publication and to make reasonable changes. AOpen assumes no responsibility for any errors or inaccuracies that may appear in this manual, including the products and software described in it.

This documentation is protected by copyright law. All rights are reserved. No part of this document may be used or reproduced in any form or by any means, or stored in a database or retrieval system without prior written permission from AOpen Corporation. Copyright

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BBeeffoorree YYoouu SSttaarrtt

This Online Manual will introduce to the user how this product is installed. All useful information will be described in later chapters. Please keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved in PDF format get free download from Adobe web site

Although this Online Manual is optimized for screen viewing, it is still capable for hardcopy printing, you can print it by A4 paper size and set 2 pages per A4 sheet on your printer. To do so, choose File > Page Setup and follow the instruction of your printer driver.

Thanks for the help of saving our earth.

, we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD disc or you can

AAXX44TT IIII OOnnlliinnee MMaannuuaal

OOvveerrvviieeww

Thank you for choosing AOpen AX4T II motherboard. This motherboard is Intel® Pentium 4 (Willamette/Northwood) motherboard (M/B) based on the ATX form featuring the Intel support Intel

Front Side Bus (FSB)

has one AGP slot and supports AGP 4X mode and pipelined spilt-transaction long burst transfer up to 1066MB/sec. The MCH component provides Direct RDRAM interface that has dual Direct RDRAM channels support PC-600/800 RDRAM operation and maximum up to 2GB. The on-board IDE controller supports Ultra DMA Further flexibility can be achieved by taking advantage of the Communication and Network Riser (CNR) audio, modem, and/or LAN configuration on a single baseboard design. Besides, the AX4T II has an AC97 onboard for provides high performance and magic surround stereo sound to let people enjoy working with it. Now, enjoy all features from AOpen AX4T II.

Pentium® 4 800MHz~2.0GHz+ CPU. With Intel® QDR (Quad Data Rate) technology, AX4T II supports 400MHz

clock and provides up to 3.2GB/s data bandwidth between CPU and chipset. In the AGP performance, it

850 chipset. As high performance chipset built in the M/B, the AX4T II can

33/66/100 mode and the transfer rate up to 100MB/s.

card option that allows

CODEC chipset

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CPU

Supports Intel® Socket 478 Pentium® 4 800MHz~2.0GHz+ with 400MHz system bus designed for Socket 478 technology.

Chipset

The Intel®- 850 chipset consists of three main components: Memory Control Hub (MCH), I/O Control Hub 2 (ICH2X) and Firmware Hub (FWH). All these components are interconnected via an Intel interface designed into the Intel platform features include AGP 4x mode, Direct RDRAM, Ultra ATA/100, Low Pin Count (LPC) interface, integrated LAN and Universal Serial Bus (USB). The platform is also ACPI compliant and supports Full-on, Stop Grant, Suspend to RAM, Suspend to Disk and Soft-off power management states. Through the use of an appropriate LAN connect, the platform supports Wake-on-LAN for remote administration and troubleshooting.

850 chipset to provide efficient communication between components. Additional hardware

proprietary interface called hub interface. The hub

Expansion Slots

Including five 32-bit/33MHz PCI, one CNR and one AGP Pro slots. The PCI local bus throughput can be up to 132MB/s. The

Communication & Nectworking Riser (CNR)

The Accelerated Graphics Port (AGP) video cards support data transfer rate up to 1066MB/s. As A X4T II motherboard includes one AGP Pro expansion slot for a bus mastering AGP graphic card, for AD and SBA signaling, AX4T II can support AGP 4X mode.

slot provided from AX4T II can support CNR interface for a LAN/Modem/Audio card.

specification provides a new level of video display sophistication and speed. The AGP

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Memory

Provides four 168-pin DRDRAM DIMM socket that support up to 2GB of PC-600/800 compliant DRDRAM (Direct Rambus DRAM). You may install 64, 128, 256 or 512MB with ECC (Error Checking and Correction) RDRAM RIMM modules into each socket.

Ultra DMA 33/66/100 Bus Mater IDE

Comes with an on-board PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels, supports Ultra DMA

33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 4, and supports Enhanced IDE devices.

On-board AC97 Sound

AX4T II uses AC97 sound chip. This on-board audio includes a complete audio recording and playback system.

Four USB Connectors

AX4T II provides two ports, four USB connectors for USB i nterface devices such as mouse, keyb oard, modem, scanner, etc.

Power Management/Plug and Play

AX4T II supports the power management function that confirms to the power-saving standards of the U.S. Environmental Protection Agency (EPA) Energy Star program. It also offers Plug-and-Play thus making system user-friendlier.

, which helps save users from configuration problems,

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Hardware Monitoring Management

Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor module.

Enhanced ACPI

Fully implement the ACPI standard for Windows® 98/ME/2000 series compatibility, and supports Soft-Off, STR (Suspend to RAM, S3), STD (Suspend to Disk, S4), WOM (Wake On Modem), WOL (Wake On LAN) features.

Super Multi-I/O

AX4T II provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART2 can also be directed from COM2 to the Infrared Module for the wireless connections.

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QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree

This page gives you a quick procedure on how to install your system. Follow each step accordingly.

Installing CPU and Fan

Installing System Memory (DIMM

Connecting Front Panel Cable

Connecting IDE and Floppy Cable

Connecting ATX Power Cable

Connecting Back Panel Cable

Power-on and Load BIOS Setup Default

Setting CPU Frequency

Reboot

10.

Install in g Op erat i ng Sy st em (s uc h as W ind ows 98 )

11.

Installing Driver and Utility

JP7 Raid Sel

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MODEM-CN Connector

Front Audio Connector

CD-IN Connector

4Mbit Flash ROM BIOS

32-bit PCI Expansion Slot x5

GP Pro Expansion Slot

Front Panel Connector

GP Pro External Power

Connector x2 (Optional)

JP14 CMOS Clear Jumper

Chassis I nt rus i on De tec t or

IrDA Connector

CNR Expansion Slot

Connector

ect Jumpe

ATA/100

(Optional)

IDE RAID

FDD Connector

Supports 2nd USB

Connecto

FAN2 Connector

Motherboard Map

PC99 Colored Back Panel with 10/100Mbps Ethernet RJ45 Connector(Optional)

Resettale Fuse

4-pin 12V ATX Power Connector

CPU Fan Connector 478-pin CPU socket with

Voltage and Frequency

uto-detection that supports

Intel

Pentium® 4

1.30~1.50GHz+ CPU Low ESR Capacitors

184-pin RIMM Socket x4 supports PC-600/800 RDRAM maximum up to 2GB

850 chipset with MCH,

Intel ICH2X and FWH that supports LAN, Ultra ATA/100, RDRAM Solution FAN3 Connector

TX Power Connector TA33/66/100 IDE

Connector x2

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PC-600/800 Direct

RDRAM Up to 2 GB

up to 3.2GB/s

RIMM Socket x2

32-bit PCI Slot x5

PCI Bus data

transferring rate up to

133MB/s

Primary

Channel

Secondary

Channel

ATA

33/66100

RIMM Socket x2

Dual Channel RDRAM

data transferring rate

400MHz System

Bus

AGP Pro Slot

Connector

Floppy Di sk D rive x2

USB

1stUSB Port

2ndUSB Por t

Low Pin

Count Super

I/O

AC97

CODEC

AC’97 Link

Firmware Hub

Serial Port x2

Audio CODEC

Modem CODEC

CNR Slot

4MbitFlash EEPROM

Parallel Port

IDE Dri ve x4

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HHaarrddwwaarree IInnssttaallllaattiioonn

This chapter describes jumpers, connectors and hardware devices of this motherboard.

Note: El ectrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other components. Always observe the following precautions before you install a system component.

1. Do not remove a component from its protective packaging until you are ready to install it.

2. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a component. If a wrist strap is not available, maintain contact with the system unit t hroughout any procedure requiring ESD protection.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

AAbboouutt ““OOppttiioonnaall”” aanndd ““UUppggrraaddee OOppttiioonnaall””……

When you read this online manual and start to assemble your computer system, you may find some of functions are called “Optional”, and some are called “Upgrade Optional”. Owing to all of AOpen motherboards include many amazing and powerful features, but in some situations, these powerful features are not used to every user. Hence, we make some key features change to optional for you choose. Some of these optional functions can be upgrade by users, and therefore we called these optional functions are “Upgrade Optional”. About the optional functions that you can’t upgrade by yourself, we called them “Optional”. If needed, you can contact our local distributors or resellers for purchasing “Upgrade Optional” components, and again you can visit AOpen official web site: www.aopen.com.tw

to get more detail information.

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You can clear CMOS to restore system default setting. To clear the CMOS, follow the procedure below.

1. Turn off the system and unplug the AC power.

2. Remove ATX power cable from connector PWR2.

3. Locate JP14 and short pins 2-3 for a few seconds.

4. Return JP14 to its normal setting by shorting pins 1 & pin2.

5. Connect ATX power cable back to connector PWR2.

Pin 1

Clear CMOS

Normal Operation

Default)

Tip: W hen should I Clear CMOS?

1. Boot fa il bec aus e of ove rc lock i ng…

2. Forget password…

3. Troubleshooting…

AAXX44TT IIII OOnnlliinnee MMaannuuaal

CCPPUU IInnssttaallllaattiioonn

This motherboard supports Intel® Pentium® 4 1.30~1.50GHz+ Socket 478 series CPU. Please follow the step as below to finish CPU installation. Be careful of CPU orientation when you plug it into CPU socket.

1. Pull up the CPU socket level and up to 90-degree angle.

2. Locate Pin 1 in the socket and look for a black dot or cut edge on the CPU upper interface. Match Pin 1 and cut edge, then insert the CPU into the socket.

Note: These pictures are for example only; they may not exactly be the same as the motherboard you purchased.

CPU socket

Lever

CPU pin 1 and

cut edge

CPU cut edge

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3. Press down the CPU socket level and finish CPU installation.

Note: The CPU you purchase may look different from the one shown here.

CPU cut edge

Note: If you do not match the CPU socket Pin 1 and CPU cut edge well, it may damage the CPU.

Note: This socket supports Micro-FC-PGA2 package CPU, which is the lat est CPU pack age develope d by Intel. Other forms of CPU package cannot be fitted in.

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CPU

CPU Freq. Ratio

CPU voltage

Clock

Generator

BIOS

Controlled

Circuit

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CPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency through the BIOS setup designs are eliminated. There will be no worry of wrong CPU voltage detection.

, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less

Intel® Socket 478 series P ent ium 4

CPU VID signal

Power Regulator

(A utomatically generates CPU voltage)

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This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no jumpers or switches are needed.

BIOS Setup > Frequency/Voltage Control > CPU Clock Ratio

CPU Ratio CPU FS B

8x, 9x, 10x, 11x, ……, 22x, 23x 100-180MHz by 1MHz stepping

Warning: Intel® 850 chipset supports maximum 400MHz (100MHz*4) system bus and 66MHz AGP clock, higher clock setting may cause serious system damage.

Home

Tip: If your system hangs or fails to boot

because of overclocking, simply use <Home> key to restore the default setting.

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Core Frequency = CPU Bus Clock * 4 * CPU Ratio

PCI Clock = CPU Bus Clock / Clock Ratio AGP Clock = PCI Clock x 2

CPU

Pentium 4 1.3G 1.3GHz 100MHz 13x Pentium 4 1.4G 1.4GHz 100MHz 14x Pentium 4 1.5G 1.5GHz 100MHz 15x Pentium 4 1.6G 1.6GHz 100MHz 16x Pentium 4 1.7G 1.7GHz 100MHz 17x Pentium 4 1.8G 1.8GHz 100MHz 18x Pentium 4 1.9G 1.9GHz 100MHz 19x Pentium 4 2.0G 2.0GHz 100MHz 20x Pentium 4 2.2G 2.2GHz 100MHz 22x Pentium 4 2.3G 2.3GHz 100MHz 23x

Warning: Intel® 850 chipset supports maximum 400MHz (100MHz*4) system bus and 66MHz AGP clock, higher clock setting may cause serious system damage.

CPU Core

Frequenc y

Note: This motherboard support CPU auto-detection function. Hence, you don’t need to setup the CPU frequency b

manual.

FSB Clock Ratio

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Plug in t he CPU fan c able to the 3 -pin CPU FAN connector. If you have chassis fan, you can also plug it on FAN2 or FAN3 (without H/W monitoring) connector.

FAN3 Connector

FAN2 Connector

Note: Some CPU fans do not have sensor pin, so that cannot support hardware monitoring function.

CPU Fan Connector

GND +12V

SENSOR

+12V

GND

AAXX44TT IIII OOnnlliinnee MMaannuuaal

HHooww ttoo IInnssttaallll CCPPUU HHeeaattssiinnkk aanndd FFaann

This motherboard comes with a retention module attached on the CPU socket when shipped, we strongly recommend you to install AOpen special designed CPU Fan as shown below on the retention module for better heat dissipation. Please install the CPU Fan correctly as the following pictures shown.

1. Gently put the CPU Fan down on the retention module with clips aligning correctly to the four corners.

Note: The picture above may look different from the product you purchased.

2. Pressing down the four clips with force one by one on the retention module.

Clip

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RRIIMMMM SSoocckkeettss

This motherboard has four 184-pin RIMM sockets that allow you to install PC600 and PC800 RDRAM up to 2GB. AX4T II will detect the RDRAM speed automatically while system is in POST BIOS setup program.

, but it still allows you to select the RDRAM type manually by

Note: Based on Intel 850 chipset specification, AX4T II has dual memory channel. Please note that when you insert RIMM modules, you have to insert them into RIMM 1 and 4, and have terminators inserted into RIMM 2 and 3. Or you can insert RIMM modules into RIMM 2 and 3, and

RIMM2

RIMM3 RIMM4

RIMM1

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Pictures below are Direct RDRAM memory module and RIMM terminator (also called C-RIMM). Please do not forget to insert the RIMM terminator into the proper RIMM socket, otherwise the system cannot be booted.

DRDRAM RIMM Module

RIMM Terminator

AAXX44TT IIII OOnnlliinnee MMaannuuaal

HHooww ttoo IInnssttaallll MMeemmoorryy MMoodduulleess

Please follow the procedure as shown below to finish memory installation.

1. Make sure the RIMM module’s pin face down and match the socket’s size as depicted below.

2. Insert the module straight down to the RIMM slot with both hands and press down firmly until the RIMM module is securely in place.

Tab

60 pins 88 pins

Note: The ta bs of t he RIMM slot will close-up to hold the RIMM in place when the RIMM touches the slot’s bottom.

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3. Repeat step 2 to finish additional RIMM & C-RIMM modules installation.

C-RIMM Module

Note: Pictures shown here are for reference only.

Note: Please do not forget to install the C-RIMM modules into the proper RIMM slots.

Direct RDRAM Module

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FFrroonntt PPaanneell CCoonnnneeccttoorr

Attach the power LED, EMPI, speaker, power and reset switch connectors to th corresponding pins. If you enable “Suspend Mode” item in BIOS Setup, the ACPI & Power LED will keep flashing while the system is in suspend mode.

Locate the power switch cable from your ATX housing. It is 2-pin female connector from the housing front panel. Plug this connector to the soft-power switch connector marked SPWR.

Suspend Type ACPI L E D

Power on Suspend (S1) or Suspend to RAM (S3) Keep flashing

Suspend to Disk (S4) The LED will be turned off

NC NC

+5 IDE LED IDE LED

GND

SPWR GND ACPI & PWR LED GND +5V NC NC GND RESET GND

IDE LED

Speaker

+ +

Power Switch

ACPI &

Power LED

Reset

SPEAKER

AAXX44TT IIII OOnnlliinnee MMaannuuaal

AATTXX PPoowweerr CCoonnnneeccttoorr

This motherboard comes with a 20-pin and 4-pin ATX power connector as shown below. Make sure you plug in the right direction. We strongly recommend you to connect the 4-pin 12V ATX connector before connecting the 20-pin ATX power connector and use standard power supply specially designed for Pentium 4 system.

COM

+5V

COM +3.3V +3.3V

Power Connector

+5V COM PW-OK 5VSB +12V

+3.3V

-12V

COM

PS-ON

COM

+5V +5V

-5V COM COM

AAXX44TT IIII OOnnlliinnee MMaannuuaal

AACC PPoowweerr AAuuttoo RReeccoovveerryy

A traditional ATX system should remain at power off stage when AC power resumes from power failure. This design is inconvenient for a network server or workstation, without an UPS, that needs to keep power-on. This motherboard implements an AC Power Auto Recovery function to solve this problem.

(

)

(

)

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2nd)

RAID IDE 2

Master

3rd)

RAID IDE 1

(1st)

Maste

Pin 1

FDD Connector

IIDDEE,, FFllooppppyy AANNDD IIDDEE RRAAIIDD ((OOppttiioonnaall)) CCoonnnneeccttoorr

Connect 34-pin floppy cable and 40-pin, 80-wire IDE cable to floppy connector FDC and IDE / IDE RAID connector. Be careful of the pin1 orientation. Wrong orientation may cause system damage.

ATA 33/66/100 IDE

Connecto

Secondary

Slave

Primary

Slave

4th)

2nd)

Secondary

Master

Primary

Master

3rd

IDE2 (Secondary)

IDE1 (Primary)

1st

RAID IDE 2

Slave (4th)

RAID IDE 1 Slave

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IDE1 is also known as the primary channel and IDE2 as the secondary channel. Each channel supports two IDE devices that make a total of four devices. In order to work together, the two devices on each channel must be set differently to Master and Slave mode. Either one can be the hard disk or the CDROM. The setting as master or slave mode depends on the jumper on your IDE device, so please refer to your hard disk and CDROM manual accordingly.

This motherboard supports ATA33 modes. The IDE bus is 16-bit, which means every transfer is two bytes.

Mode Clock Period Clock

PIO mode 0 30ns 20 600ns (1/600ns) x 2byte = 3.3MB/s PIO mode 1 30ns 13 383ns (1/383ns) x 2byte = 5.2MB/s PIO mode 2 30ns 8 240ns (1/240ns) x 2byte = 8.3MB/s PIO mode 3 30ns 6 180ns (1/180ns) x 2byte = 11.1MB/s PIO mode 4 30ns 4 120ns (1/120ns) x 2byte = 16.6MB/s DMA mode 0 30ns 16 480ns (1/480ns) x 2byte = 4.16MB/s DMA mode 1 30ns 5 150ns (1/150ns) x 2byte = 13.3MB/s DMA mode 2 30ns 4 120ns (1/120ns) x 2byte = 16.6MB/s UDMA 33 30ns 4 120ns (1/120ns) x 2byte x2 = 33MB/s UDMA 66 30ns 2 60ns (1/60ns) x 2byte x2 = 66MB/s UDMA100 20ns 2 40ns (1/40ns) x 2byte x2 = 100MB/s

Warning: Th e sp ec ific at io n of the I DE c abl e is a max imu m of 46c m (1 8 inc hes ) ; make sure your cable does not exceed this length.

, ATA66 or ATA100 IDE devices. Following table lists the transfer rate of IDE PIO and DMA

Cycle Time Data Transfer Rate

Count

Tip:

1. For better signal quality, it is recommended to set the far end side device to master mode and follow the suggested sequence to install your new device. Please refer to above diagra m

2. To achieve the best performance of Ultra DMA 66/100 hard disks, a special 80-wires IDE cable for Ultra DMA

1 i r

AAXX44TT IIII OOnnlliinnee MMaannuuaal

JJPP77 RRaaiidd SSeelleecctt JJuummppeerr ((OOppttiioonnaall))

This jumper allows you to select the Raid function by adjusting the position of its yellow cap.

Pin 1

JP7 Enable/Disable

Raid Jumper

1 1

Other IDE Raid

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IIrrDDAA CCoonnnneeccttoorr

The IrDA connector can be configured to support wireless infrared module, with this module and application software such as Laplink or Windows 95 Direct Cable Connection, the user can transfer files to or from laptops, notebooks, PDA devices and printers. This connector supports HPSIR (115.2Kbps, 2 meters) and ASK-IR (56Kbps).

Install the infrared module onto the IrDA connector and enable the infrared function from BIOS Setup, UART2 Mode, make sure to have the correct orientation when you plug in the IrDA connector.

IR_TX

Pin 1

IrDA Connector

+5V

KEY GND IR_RX

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AAGGPP ((AAcccceelleerraatteedd GGrraapphhiicc PPoorrtt)) PPrroo EExxppaannssiioonn SSlloott

AX4T II provides an AGP Pro slot. The AGP Pro is a bus interface targeted for high-performance 3D graphic. Recently, there are more memory modules on the AGP card. Hence, the AGP card needs more power to drive these chips. The AGP Pro interface has more power pins to provide more power f or the card. AGP supports only memory read/write operation and single-master single-slave one-to-one only. AGP Pro now supports AGP 4x mode, 66MHz x 4bytes x 4 = 1056MB/s. There is an external power connector called CN12 for AGP card. You can connect it with proper cable to get steady power for AGP Pro display card.

AGP Pro Expansion Slot

+12V GND GND VCC

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CCNNRR ((CCoommmmuunniiccaattiioonn aanndd NNeettwwoorrkk RRiisseerr)) EExxppaannssiioonn SSlloott

CNR is a riser card specification to replace the AMR (Audio/Modem Riser) that supports V.90 analog modem, multi-channel

audio, and phone-line based networking. Owing to CPU computing power getting stronger, the digital processing job can be implemented in main chipset and share CPU power. The analogy conversion (CODEC circuit design, which is put on CNR card. This motherboard implements sound CODEC on board (can be disabled by BIOS setup program), but reserve CNR slot for the option of modem function. Note that you can still use PCI modem card.

CNR Expansion Slot

) circuit requires a different and separate

AAXX44TT IIII OOnnlliinnee MMaannuuaal

SSuuppppoorrtt IInntteel

This motherboard has a fast Ethernet controller on chip. On the strength of LAN chip onboard, it provides 10/100M bps Ethernet for office and home use, the Ethernet connector is located on top of USB connectors.

PPRROO//110000 NNeettwwoorrkk CCoonnnneeccttiioonn ((OOppttiioonnaall))

AAXX44TT IIII OOnnlliinnee MMaannuuaal

PPCC9999 CCoolloorr CCooddeedd BBaacckk PPaanneell

The onboard I/O devices are PS/2 Keyboard, PS/2 Mouse, COM1 and COM2, Printer, RJ45 LAN (optional), four USBs, AC97 sound and game ports. The view angle of drawing shown here is from the back panel of the housing.

PS/2 Mous e

Connecto

RJ45 10/100Mbps

LAN Connector

(Optional)

SPP/EPP/ECP Paralle l Po rt

MIDI/G am e Port

PS/2 Keyboard

PS/2 Keyboard: For standard keyboard, which is using a PS/2 plug. PS/2 Mo us e: For PC-Mo us e, whic h is us in g a PS/ 2 pl ug. USB Conn ec to r: Available for connecting USB devices. RJ45 LAN Connector: To connect with 10/100Mbps Ethernet. Parallel Port: To connect with SPP/ECP/EPP printer. COM 1/COM 2 Port: To connect with pointing devices, modem or others serial devices. Speaker Out: To External Speaker, Earphone or Amplifier. Line-In: Comes from the signal sources, such as CD/Tape player. MIC-In: From Microphone. MIDI/Game Port: For 15-pin PC joystick, game pad or MIDI devices.

Connector

USB

Connectors

COM 1 Port

COM 2 Port

MIC-In Line-I n Speaker Out

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nlliinnee MMaannuuaall

SSuuppppoorrtt 22nndd UUSSBB PPoorrtt

This motherboard provides 4 USB connectors to connect USB devices, such as mouse, keyboard, modem, printer, etc. There are two connectors on the PC99 back panel. You can use proper cable to connect others USB connectors to the back plane or front panel of chassis.

GND

SBD3+

SBD3-

+5V

Pin 1

KEY GND SBD2+ SBD2+5V

AAXX44TT IIII OOnnlliinnee MMaannuuaal

CChhaassssiiss IInnttrruussiioonn SSeennssoorr

The “CASE OPEN” header provides chassis intrusion-monitoring function. This function will log an event in the system BIOS when this header is connected. You can use the 2-pin chassis intrusion sensor to connect with this header, and enable the chassis monitoring function of system BIOS.

SENSOR

Chassis I nt rus i on

Sensor Connector

GND

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CCDD AAuuddiioo CCoonnnneeccttoorr

This connector is used to connect CD Audio cable from CDROM or DVD drive to onboard sound.

CD-IN

GND

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MMooddeemm AAuuddiioo CCoonnnneeccttoorr

This connector is used to connect Mono In/MIC Out cable from internal modem card to onboard sound circuit. The pin 1-2 is Mono In, and the pin 3-4 is MIC Out. Please note that t here is no standard for this kind of connector yet, only some internal modem cards implement this connector.

MIC OUT

GND GND

MONO IN

MMOODDEEMM--CCNN CCoonnnneeccttoorr

AUD_

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FFrroonntt AAuuddiioo CCoonnnneeccttoorr

If the housing has been design with an audio port on the front panel, you’ll be able to connect onboard audio to front panel through this connector.

HP_ON

FPOUT

AUD

AUD_RET_L

KEY

AUDIO Connector

UD_FPOUT_R UD_MIC_BIAS

MIC

1 2

UD_GND UD_VCC UD_RET_R

AAXX44TT IIII OOnnlliinnee MMaannuuaal

Auto Swi t ch

RTC

CMOS

uto switching to ATX standby power as long as AC power line is plugged. This smart design increases battery life if you still plug battery on motherboard.

Backup by EEPROM

BBaatttteerryy--lleessss aanndd LLoonngg LLiiffee DDeessiiggnn

This Motherboard implements Flash ROM and a special circuit that allows you to save your current CPU and CMOS Setup configurations without the need of a battery. The RTC (real time clock) can also keep running as long as the power cord is plugged. If you lose your CMOS data by accident, you can just reload the CMOS configurations from Flash ROM and the system will recover as usual.

Flash

ROM

ATX Stand-by Power Battery

(Real Time Clock)

00:00:00

AAXX44TT IIII OOnnlliinnee MMaannuuaal

OOvveerr--ccuurrrreenntt PPrrootteeccttiioonn

The Over Current Protection was very popular implemented on ATX 3.3V/5V/12V switching power supply. However, the new generation CPU uses different voltage that has regulator to transfer 5V to CPU voltage (for example, 2.0V), and makes 5V over current protection useless. This motherboard is with switching regulator onboard supports CPU over-current protection; in conjunction with 3.3V/5V/12V power supply provide the full line over-current protection.

Note: Although we have implemented protection circuit try to prevent any human operating mistake, there is still certain risk that CPU, memory, HDD, add-on cards installed on this motherboard may be damaged because of component failure, human operating error or unknown nature reason. AOpen cannot guaranty the protection circuit will always work perfectly.

ATX

Switching

Power

Supply

12V (Protected by power supply)

3.3V (Protected by power supply)

5V (Protected by power supply)

Onboard

Power

Regulator

Over-Current

Protection

Circuit

CPU Core Voltage

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Fan

CPU

Fan Speed

AOpen H/W

Monitoring

Utility

CPU Temperature

CPU Voltage

System Voltage

Detection

Circuit

HHaarrddwwaarree MMoonniittoorriinngg

This motherboard implements a hardware monitoring system. As you turn on your system, this smart design will continue to monitor your system’s working voltage, fan status and CPU temperature. If any of these systems’ status go wrong, there will be an alarm through the chassis external speaker or buzzer of motherboard (if existed) to warn the user.

Power

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RReesseettttaabbllee FFuussee

Traditional motherboard has fuse for Keyboard and USB port to prevent over-current or shortage. These fuses are soldered onboard that when it is broken (did the job to protect motherboard), user still cannot replace it and the motherboard is still malfunction.

With expensive Resettable Fuse, the motherboard can back to normal function after fuse did the protection job.

Resettable Fuse

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LLooww EESSRR CCaappaacciittoorr

A group of large capacitors that meet the requirements of today’s high performance motherboard design. The theory behind this is long transmission lines have considerable inductance and capacitance as well as resistance. When a current flows through the line, inductance and capacitance have the effect of varying the voltage on the line as the current varies. Thus the supply voltage varies with the load. Several kinds of devices are used to overcome this undesirable variation, in an operation called regulation of the voltage. They include induction regulators and three-phase synchronous motors (called synchronous condensers), both of which vary the effective amount of inductance and capacitance in the transmission circuit. Inductance and capacitance react with a tendency to nullify one another. When a load circuit has more inductive than capacitive reactance, as almost invariably occurs in large power systems, the amount of power delivered for a given voltage and current is less than when the two are equal. The ratio of these two amounts of power is called the power factor. Because transmission-line losses are proportional to current, capacitance is added to the circuit when possible, thus bringing the power factor as nearly as possible to 1. For this reason, large capacitors are frequently inserted as a part of power-transmission systems.

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The power circuit of the CPU core voltage must be checked to ensure system stability for high speed CPUs (such as the new Pentium III, or when overclocking). A typical CPU core voltage is 2.0V, so a good design should control voltage between 1.860V and 2.140V. That is, the transient must be below 280mV. Below is a timing diagram captured by a Digital Storage Scope, it shows the voltage transient is only 143mv even when maximum 18A current is applied.

Note: This diagram is for example only, it may not be exactly the same as this motherboard.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

LLaayyoouutt ((FFrreeqquueennccyy IIssoollaattiioonn WWaallll))

Note: This diagram for example only, it may not be exactly the same as this motherboard.

For high frequency operation, especially overclocking, layout is the most important factor to make sure chipset and CPU working in stable condition. The layout of this motherboard implements AOpen’s unique design called “ Frequency Isolation Wall”. Separating each critical portion of motherboard into regions where each region operates in a same or similar frequency range to avoid cross talk and frequency interference between each region’s operations and condition. The trace length and route must be calculated carefully. For example, the clock trace must be equal length (not necessarily as short as possible) so that clock skew will be controlled within few a pico second (1/10

Sec)

AAXX44TT IIII OOnnlliinnee MMaannuuaal

PPuurree AAlluummiinnuumm HHeeaattssiinnk

Cool down CPU and Chipset is important for system reliability. Aluminum heat sink provides better heat consumption especially when you are trying to overclock.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

DDrriivveerr aanndd UUttiilliittyy

There are motherboard drivers and utilities included in AOpen Bonus CD disc. You don’t need to install all of them in order to boot your system. But after you finish the hardware installation, you have to install your operation system first (such as Windows

98) before you can install any drivers or utilities. Please refer to your operation system’s installation guide.

Note: Please follow recommended procedure to install Windows 95

and Windows 98.

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AAuuttoo--rruunn MMeennuu ffrroomm BBoonnuuss CCDD DDiisscc

You can use the auto-run menu of Bonus CD disc. Choose the utility and driver and select model name.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

EElliimmiinnaattee ““??”” mmaarrkk ffrroomm WWiinnddoowwss 9955//9988

Windows 95/98 cannot recognize this chipset, because it was released before the Intel 850 chipset. You can install the Intel INF Update Utility from the Bonus Pack CD disc auto-run menu to eliminate the “?” marks.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

IInnssttaalllliinngg IInntteell IIAAAA DDrriivveerr

You can install Intel IAA Driver to increase the performance of software applications and reduce PC boot times. You can find it in the AOpen Bonus Pack

CD disc.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

IInnssttaalllliinngg OOnnbbooaarrdd LLAANN DDrriivveerr ((OOppttiioonnaall))

This motherboard comes with an Intel® 82562ET 10/100 LAN controller. You can find the LAN driver from the Bonus Pack CD disc. Please finish the onboard sound chip driver installation as following:

1. Install operation system fully.

2. After installation, go the “Start” menu and choose “Setting”.

3. From the “Setting” menu”, choose “Control Panel”.

4. In the “Control Panel” window, double-click the “System” icon.

5. In the “System” window, choose the “Device Manager” tab.

6. In the hierarchical display under “Other Devices” is a listing for “PCI Ethernet Controller”. Choose it and then press ”Properties” button.

7. Choose “Driver” tab in the “Properties” window, choose “Update Driver”, and then press “Next”.

8. Choose “Search for a better driver than the one your device id using now (recommended)”, and then press “Next”.

9. Choose “Specify Location”, and then type full path of driver location in the text box. Or you can choose “Browse” button for specify driver’s location.

10. Insert the AOpen Bonus Pack CD into the CD-ROM.

11. Press the “Next” button. A message informing you that system has found “Intel (R) PRO/100 VE Network Connection” should appear.

12. Press the “Next”, and then “Finish”, and then “Yes” when asked if you want to restart your computer.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

IInnssttaalllliinngg OOnnbbooaarrdd SSoouunndd DDrriivveerr

This motherboard comes with an RealTek ALC201 chip. You can find the audio driver from the Bonus Pack CD disc auto-run menu.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

IInnssttaalllliinngg HHaarrddwwaarree MMoonniittoorriinngg UUttiilliittyy

You can install Hardware Monitoring Utility to monitor CPU temperature, fans and system voltage. The hardware monitoring function is automatically implemented by the BIOS and utility software. No hardware installation is needed. To install the software, double click “Setup.exe”. The driver will be copied into Windows directory and an entry of “Hardware Monitor” in the start menu will be created.

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AACCPPII SSuussppeenndd ttoo HHaarrdd DDrriivvee

ACPI Suspend to Hard Drive is basically controlled by Windows operation system. It sa ves your current work (system status,

memory and screen image) into hard disk, and then the system can be totally power off. Next time, when power is on, you can resume your original work directly from hard disk within few seconds without go through the Windows booting process and run your application again. If your memory is 64MB, normally, you need to reserve at least 64MB HDD space to save your memory image.

When go into Suspend:

When power-on next time:

System

Image &

Status

System

Image &

Status

Hard

Disk

Save into

Restore within seconds

Hard

Disk

AAXX44TT IIII OOnnlliinnee MMaannuuaal

System Requirement

1. AOZVHDD.EXE 1.30b or later.

2. Delete config.sys and autoexec.bat.

Fresh installation of Windows 98 on a new system

1. Execute "Setup.exe /p j" to install Windows 98

2. After Windows 98's installation is complete, go to the Control Panel > Power Management.

a. Set Power Schemes > System Standby to "Never". b. Click on "Hibernate" and select "Enable Hibernate Support" then "Apply". c. Click on the "Advanced" tab, you'll see "Hibernate" on "Power Buttons". Note that this option will only be seen after step

b mentioned above has been completed; otherwise only "Standby" and "Shutdown" will be shown. Select "Hibernate" and "Apply".

3. Clean boot into DOS and run AOZVHDD utility.

a. If you ass ign the wh ole disk to your W in 98 system (FAT 16 or FAT 32), plea se run "aozv hdd /c /file". Please remember

sufficient free space has to be reserved in the disk, e.g. if you have 64 MB DRAM and 16 MB VGA card installed, the system needs at least 80 MB free space. The utility will locate the space automatically.

b. If you assign an individual partition for Win 98, please run "aozvhdd /c /partition". Of course, the system needs to

provid e unf orm at te d an emp ty pa rt iti o n.

4. Reboot sys tem .

5. You've already implemented ACPI Suspend to-Hard Drive. Click "Start > Shut Down > Standby" then the screen will go off

immediately. And 1 minute or so will be taken for the system to save what's in the memory to the hard drive; the larger the memory size the longer this process will take.

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Changing from APM to ACPI (Windows 98 only)

1. Run "Regedit.exe"

a. Go through the following path

HKEY_LOCAL_MACHINE

SOFTWARE

MICROSOFT

WINDOWS

CURRENT VERSION

DETECT b. Select "ADD Binary" and name it as "ACPIOPTION". c. Right click and select Modify, add "01" after "0000" to make it "0000 01". d. Save changes.

2. Select "Add New Hardware" under Control Panel. Allow Windows 98 to detect new hardware. (It will find "ACPI BI O S " and remove "Plug and Pla y BIOS")

3. Reboot sys tem .

4. Clean boot into DOS and run "AOZVHDD.EXE /C /File"

Changing from ACPI to APM

1. Run "Regedit.exe"

AAXX44TT IIII OOnnlliinnee MMaannuuaal

a. Go through the following path

HKEY_LOCAL_MACHINE

SOFTWARE

MICROSOFT

WINDOWS

CURRENT VERSION

DETECT

ACPI OPTION

b. Right click and select "Modify, change "01" to "02" to make it "0000 02".

c. Save changes.

2. Select "Add New Hardware" under Control Panel. Allow Windows 98 to detect new hardware. (It will find "Plug and Play BIOS" and remove "ACPI BIOS")

3. Reboot sys tem .

4. Run "Add New Hardware" again and it will find "Advanced Power Management Resource".

5. Click "OK ".

Tip: "02" means Windows 98 is ACPI acknowledged but the ACPI function is disabled.

Tip: Currently we found only ATI 3D Rage Pro AGP card would support

CPI suspend to disk. Please refer to AOpen web site for latest update

AAXX44TT IIII OOnnlliinnee MMaannuuaal

AACCPPII SSuussppeenndd ttoo RRAAMM ((SSTTRR))

This motherboard supports ACPI Suspend to RAM function. With this function, you can resume your original work directly from DRAM without going through the Windows 98 booting process and run your application again. Suspend to DRAM saves your current work in the system memory, it is faster than Suspend to Hard Drive but requires power supplied to DRAM, while Suspend to Hard Drive requires no power.

When go into Suspend:

When power-on next time:

System Image & Status

in the DRAM

System Image & Status

in the DRAM

Backup by 3.3V Power

Power back to

Other System

Devices

Other System

Devices

Power loss

Power back to w

AAXX44TT IIII OOnnlliinnee MMaannuuaal

To implement ACPI Suspend to DRAM, please follow the procedures as below:

System Requirement

1. An ACPI OS is required. Currently, Windows 98 is the only choice.

2. The VIA 4 in 1 Driver must have been installed properly.

Procedures

1. Changed the f ollowing BIOS settings.

BIOS Setup > Power Management Setup > ACPI Function: Enabled

BIOS Setup > Power Management Setup > ACPI Suspend Type: S3.

2. Go to Control Panel > Power Management. Set “Power Buttons” to “Standby”.

3. Press power button or standby button to wake up the system.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

AAWWAARRDD BBIIOOSS

System parameters can be modified by going into BIOS Setup m enu, th is menu a llows y ou to conf igur e the syst em param eters and save the configuration into the 128 bytes CMOS area, (normally in the RTC chip or in the mai n chipset).

The AwardBIOS™ that installed in the Flash RO M BIOS provides critical low-level support for standard devices such as hard disk drives, serial and parallel ports.

Most BIOS setting of AX4T II had optimized by AOpen’s R&D engineering team. But, the default setting of BIOS still can’t fine-tune the chipset controlling entire system. Hence, the rest of this chapter is intended to guide you through the process of config uri ng y ou r sys tem us in g set up.

To enter to BIOS setup menu

, press <Del> when POST (Power-On Self Test) screen is shown on your monitor.

of the motherboard is a custom version of an industry standard BIOS. The

Note: Because the BIOS code is the most often changed part of the motherboard design, the BIOS information contained in this manual may be different with actual BIOS that come with your motherboard.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

AAbboouutt BBIIOOSS FFuunnccttiioonn DDeessccrriippttiioonn……

AOpen always dedicates to give users a more friendly computer system. Now, we include all function descriptions of BIOS setup program into the BIOS Flash ROM. When you select one function of BIOS setup program, the function description will appeared at right side of screen. Hence, you don’t need read this manual while you changing the BIOS setting.

Item Function Description Window Menu Items Select Window

AAXX44TT IIII OOnnlliinnee MMaannuuaal

HHooww TToo UUssee AAwwaarrdd™™ BBIIOOSS SSeettuupp PPrrooggrraamm

Generally, you can use the arrow keys to highlight items that you want to choose, then press <Enter> key to select, and use the <Page Up> and <Page Down> key to change setting value. You also can press <F1> key for help and press <Esc> key to quit Award™ BIOS setup program. The following table provides details about how to use keyboard in the Award™ BIOS setup program. By the way, all products of AOpen also provides a special function in the BIOS setup, you can press <F3> key selecting preferred menu language to display.

Key Description

Page Up or + Changing setting to next value or increase the value. Page Down or - Changing setting to previous value or decrease value. Enter Select the item. Esc 1. In main menu: Quit and don’t save any change.

2. In sub menu: Exit current menu to main menu. Up Arrow Highlight previous item. Down Arrow Highlight next item. Left Arrow Move the light bar to left side of menu. Right Arrow Move the light bar to right side of menu. F1 Get menu or item help description. F3 Changing menu language. F5 Load previous setting value from CMOS.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

Key Description

F6 Load fail-save setting value from CMOS. F7 Load turbo setting value from CMOS. F10 Save changed setting and exit setup program.

Note: A Open always dedicates to give users a more friendly computer system. Now, we include all function descriptions of BIOS setup program into the BIOS Flash ROM. When you select one function of BIOS setup program, the function description will appeared at right side of screen. Hence, you don’t need read this manual while you change the BIOS setting.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

HHooww TToo EEnntteerr BBIIOOSS SSeettuupp

After you finish the setting of jumpers and connect correct cables. Power on and enter the BIOS Setup, press <Del> during

POST (Power-On Self Test). Choose "Load Setup Defaults" for recommended optimal performance.

De l

Warning: Please avoid of using "Load Turbo Defaults", unless you are sure your system components (CPU, DRAM, HDD, etc.) are good enough for turbo setting.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

BBIIOOSS UUppggrraaddee

By flashing your motherboard, you agree to accept the possibility of BIOS flash failure. If you motherboard is working and is stable, and there are no major bugs that were fixed by a latter BIOS revision, we recommend that you DO NOT try to upgrade your BIOS.

By doing so, you are taking a risk of BIOS flash failure. If you indeed intent on upgrading, PLEASE BE SURE to use the right BIOS revision for the right motherboard model.

AOpen Easy Flash is a little different than traditional flash method. The BIOS and you simply run a single commend to complete the flash process.

binary file and flash routine are linked together

Caution: AOpen Easy Flash BIOS programs are designed to be compatible with the Award BIOS. At the date of this note, AOpen Easy Flash BIOS programs are not available for AMI BIOS. AMI BIOS appears mostly only on old 486 boards and some early Pentium boards. Please be sure to view the README compressed inside the BIOS package before upgrading, and follow upgrade instructions carefully. This will minimize the chance of flash failures.

AAXX44TT IIII OOnnlliinnee MMaannuuaal

Below are the steps for easy flashing procedures: (applies for Award BIOS ONLY)

1. Download new BIOS upgrade zip For example, AX4T2102.ZIP.

2. Run shareware PKUNZIP (http://www.pkware.com/ binary BI OS f il e an d th e flas h uti li ty. Or Winzip (http://www.winzip.com/

3. Save the unzipped file into a bootable floppy disk. For example, AX4T2102.BIN & AX4T2102.EXE

4. Reboot the system to DOS mode without loading any memory handler (such as EMM386) or device driver. It needs around 520K free memory spaces.

5. Execute A:> AX4T2102 and the program will do the rest of it.

DO NOT turn off the power during FLASH PROCESS until you are asked to!!

6. Reboot system and press <Del> to enter BIOS setup

Warning: The new BIOS upgrade will permanently replace your original BIOS's settings and PnP information when flashing. You may need to reconfigure your BIOS setting and re-install Win95/Win98 as well as your add-on cards, so that your system can go back to work as normal.

file from AOpen's web site.

) which supports miscellaneous operation systems to extract the

) in Windows environment.

, Choose "Load Setup Defaults", then “Save & Exit Setup”. Done!

AAXX44TT IIII OOnnlliinnee MMaannuuaal

OOvveerrcclloocckkiinngg

As a leading manufacturer in motherboard industry, AOpen always listens to what customers want and develop products to fit different user's requirements. Reliability, compatibility, leading technology and friendly features are our basic goals when designing motherboards. Other than above mentioned design criteria, there are power users who are always seeking to push the limitation of the system performance by overclocking which we call them "Overclocker".

This section is dedicated to overclockers. This high performance motherboard is designed for maximum 100MHz (System bus = 400MHz) CPU bus clock. But it comes

with clock generator of 180MHz when we design it to accommodate future CPU bus clock. Our lab test results shown that

115MHz is achievable when proper setting and qualified components were presented, we feel quite comfortable overclocking to 115MHz. Not only that, this m otherboard has full-range (CPU core voltage) settings. For your reference, the configuration that we feel comfortable is at 115MHz bus clock.

But not guaranty. ☺

Tip: Note that overclocking may also cause thermal problem. Please make sure that the cooling fan and the heatsink were adequate to dissipate excessive heat that's generated by overclocking the CPU.

Warning: The design of this product follows CPU and chipset vendor's design guideline. Any attempts to push beyond product specification are not recommended and you are taking your own risk to damage your system or important data. Before doing overclocking, you must make sure your components are able to tolerate such abnormal setting, especially CPU, DRAMs, hard disks, and AGP VGA cards.

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VVGGAA CCaarrdd && HHaarrdd DDiisskk

VGA and HDD is key components for overclocking, for your reference, the following list are what have been successful overclocked in our lab. Please note that AOpen can not guaranty they can be successful overclocked again. Please check the Available Vendor List ( AVL) by link to our official website.

VGA: http://www.aopen.com.tw/tech/report/overclk/mb/vga-oc.htm HDD: http://www.aopen.com.tw/tech/report/overclk/mb/hdd-oc.htm

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GGlloossssaarryy

AACC9977

Basically, AC97 specification separates sound/modem circuit to two parts, digital processor and a CODEC for analogy I/O they are linked by AC97 link bus. Since digital processor can be put into motherboard main chipset, the cost of sound/modem onboard solution can be reduced.

AACCPPII ((AAddvvaanncceedd CCoonnffiigguurraattiioonn && PPoowweerr IInntteerrffaaccee))

ACPI is the power management specification of PC97 (1997). It intends to save m ore power by taking full control of power management to operating system and bypass BIOS to operating system (such as Windows 98). This is a bit similar as the PnP power switch to control the power state transition.

AAGGPP ((AAcccceelleerraatteedd GGrraapphhiicc PPoorrtt))

AGP is a bus interface targeted for high-performance 3D graphic. AGP supports only memory read/write operation and single-master single-slave one-to-one only. AGP uses both rising and falling edge of the 66MHz clock, for 2X AGP, the data transfer rate is 66MHz x 4byte x 2 = 528MB/s. AGP is now moving to 4X mode, 66MHz x 4byte x 4 = 1056MB/s. AOpen is the first company to support 4X A GP motherboards by both AX6C (Intel 820) and MX64/AX64 (VIA 694x), started from Oct 1999.

. The chipset or super I/O chip needs to provide standard register interface

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AAMMRR ((AAuuddiioo//MMooddeemm RRiisseerr))

The CODEC circuit of AC97 sound/modem solution can be put on motherboard or put on a riser card (AMR card) that connects to motherboard through AMR connector.

AAOOppeenn BBoonnuuss PPaacckk CCDD

A disc bundled with AOpen motherboard product; there are motherboard drivers, Acrobat Reader for PDF online manual and other us ef ul ut il iti es .

AAPPMM ((AAddvvaanncceedd PPoowweerr MMaannaaggeemmeenntt))

Unlike ACPI, BIOS controls most APM power management functions. AOpen Suspend to Hard Drive is a good example of APM power management.

AATTAA ((AATT AAttttaacchhmmeenntt))

ATA is the specification of diskette interface. In 80’s, many software and hardware manufacturers instituted the ATA s pecification together. The AT is meaning International Business Machines Corporation (IBM) personal computer/AT’s bus structure.

AATTAA//6666

ATA/66 uses both rising edge and falling edge but doubles UDMA/33 transfer rate. The data transfer rate is 4 times of the PIO mode 4 or DMA mode 2, 16.6MB/s x4 = 66MB/s. To use ATA/66, you need special ATA/66 IDE cable.

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AATTAA//110000

ATA/100 is a new IDE specification under developing. ATA/100 uses both rising edge and falling edge as ATA/66 but clock cycle time is reduced to 40ns. The data transfer rate is (1/40ns) x 2 bytes x 2 = 100MB/s. To use ATA/100, you need special 80-wire IDE cab l e, t h e s ame as ATA/66.

BBIIOOSS ((BBaassiicc IInnppuutt//OOuuttppuutt SSyysstteemm))

BIOS is a s et of assem bly rout ine/p rogram th at resi de in EPROM or Flas h ROM. BIOS controls Input/output devices and ot her hardware devices of motherboard. In general, to provide hardware independent portability, operation system and drivers is required to access BIOS without directly access hardware devices.

BBuuss MMaasstteerr IIDDEE ((DDMMAA mmooddee))

The traditional PIO (Programmable I/O) IDE requires the CPU to involve in all the activities of the IDE access including waiting for the mechanical events. To reduce the workload of the CPU, the bus master IDE device transfers data from/to memory without interrupting CPU, and releases CPU to operate concurrently while data is transferring between memory and IDE device. You need the bus master IDE driver and the bus master IDE HDD to support bus master IDE mode.

CCNNRR ((CCoommmmuunniiccaattiioonn aanndd NNeettwwoorrkkiinngg RRiisseerr))

The CNR specification provides the PC industry the opportunity to deliver a flexible and cost reduced method of implementing LAN, home networking, DSL, USB, wireless, audio and modem subsystems widely used in today's "connected PCs". The CNR specification is an open industry specification and is supported by OEMs, IHV card manufacturers, silicon supplier and Microsoft.

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CCOODDEECC ((CCooddiinngg aanndd DDeeccooddiinngg))

Normally, CODEC means a circuit that can do digital to analog conversion and also the analog to digital conversion. It is part of

AC97

sound/modem solution.

DDDDRR ((DDoouubbllee DDaattaa RRaatteedd)) SSDDRRAAMM

DDR SDRAM utilizes the existing DRAM infrastructure and technology while doubling the nominal bandwidth available to systems in an easy to design and simple to adopt way. Initially a perfect solution for memory intensive server and workstation applications, DDR low cost and low voltage will ultimately make it an ideal solution for all segments of the PC market, high performance desktop and mobile PCs, Val ue PCs and even Internet Appliances and mobile devices.

DDIIMMMM ((DDuuaall IInn LLiinnee MMeemmoorryy MMoodduullee))

DIMM socket has total 168-pin and supports 64-bit data. It can be single or double side, the golden finger signals on each side of PCB are different, and that is why it was called Dual In Line. Almost all DIMMs are made by SDRAM Note that some old DIMMs are made by FPM/EDO

DDMMAA ((DDiirreecctt MMeemmoorryy AAcccceessss))

Channel for communications between the memory and surrounding devices.

, which operate at 3.3V.

and only operate at 5V. Do not confuse them with SDRAM DIMM.

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EECCCC ((EErrrroorr CChheecckkiinngg aanndd CCoorrrreeccttiioonn))

The ECC mode needs 8 ECC bits for 64-bit data. Each time memory is accessed; ECC bits are updated and checked by a special algorithm. The ECC algorithm has the ability to detect double-bit error and automatically correct single-bit error while parity mode can only detect single-bit error.

EEDDOO ((EExxtteennddeedd DDaattaa OOuuttppuutt)) MMeemmoorryy

The EDO DRAM technology is actually very similar to FPM (Fast Page Mode). Unlike traditional FPM that tri-states the memory output data to start the pre-charge activity, EDO DRAM holds the memory data valid until the next memory access cycle, that is similar to pipeline effect and reduces one clock state.

EEEEPPRROOMM ((EElleeccttrroonniicc EErraassaabbllee PPrrooggrraammmmaabbllee RROOMM))

Also known as E2PROM. Both EEPROM and Flash ROM can be re-programmed by electronic signals, but the interface technology is different. Size of EEPROM is much smaller than flash ROM.

EEPPRROOMM ((EErraassaabbllee PPrrooggrraammmmaabbllee RROOMM))

Traditional motherboard stores BIOS code in EPROM. EPROM can only be erased by ultra-violet (UV) light. If BIOS has to be upgraded, you need to remove EPROM from motherboard, clear by UV light, re-program, and then insert back.

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EEVV66 BBuuss

EV6 Bus in the technology of Alpha processor from Digital Equipment Corporation. EV6 bus uses both rising and falling clock edge to transfer data, similar as DDR SDRAM or ATA/66 IDE bus. EV6 Bus Speed = CPU external bus clock x 2. For example, 200 MHz EV6 bus is actually using 100 MHz external bus clock, but the equivalent speed is 200 MHz.

FFCCCC DDooCC ((DDeeccllaarraattiioonn ooff CCoonnffoorrmmiittyy))

The DoC is component certification standard of FCC EMI regulations. This standard allows DIY component (such as motherboard) to apply DoC label separately without a shielding of housing.

FFCC--PPGGAA ((FFlliipp CChhiipp--PPiinn GGrriidd AArrrraayy))

FC means Flip Chip, FC-PGA is a new package of Intel for Pentium III CPU. It can plug into SKT370 socket, but require motherboard to add some signals on socket 370. That is, the motherboard needs to be redesigned. Intel is going to ship FC-PGA 370 CPU and phase out slot1 CPU.

FFllaasshh RROOMM

Flash ROM can be re-programmed by electronic signals. It is easier for BIOS to upgrade by a flash utility, but it is als o easier to be infected by virus. Because of increase of new functions, BIOS size is increased from 64KB to 256KB (2M bit). AOpen AX5T is the first board to implement 256KB (2Mbit) Flash ROM. Now flash ROM size is moving to 4M bit on AX6C (Intel 820) and MX3W (Intel 810) motherboard. , AOpen motherboard uses EEPROM for jumper-less and battery-less design.

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FFSSBB ((FFrroonntt SSiiddee BBuuss)) CClloocckk

FSB Clock means CPU external bus clock. CPU internal clock = CPU FSB Clock x CPU Clock Ratio

CC BBuuss

See SMBus.

IIEEEEEE 11339944

IEEE 1394 is a low-cost digital interface originated by Apple Computer as a desktop LAN and developed by the IEEE 1394 working group. The IEEE 1394 can transport data at 100, 200 or 400 Mbps. One of the solutions to connect digital television devices together at 200 Mbps. Serial Bus Management provides overall configuration control of the serial bus in the form of optimizing arbitration timing, guarantee of adequate electrical power for all devices on the bus, assignment of isochronous channel ID, and notification of errors. There are two type of IEEE 1394 data transfer: asynchronous and isochronous. Asynchronous transport is the traditional computer memory-mapped, load and store interface. Data requests are sent to a specific address and an acknowledgment is returned. In addition to an architecture that scales with silicon technology, IEEE 1394 features a unique isochronous data channel interface. Isochronous data channels provide guaranteed data transport at a pre-determined rate. This is especially important for time-critical multimedia data where just-in-time delivery eliminates the need for costly buffering.

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PPaarriittyy BBiitt

The parity mode uses 1 parity bit for each byte, normally it is even parity mode, that is, each time the memory data is updated, parity bi t will be adjusted to have ev en count " 1" for ea ch byte. W hen next t ime, if m emory is r ead with odd numbe r of "1", th e parity error is occurred and this is called single bit error detection.

PPBBSSRRAAMM ((PPiippeelliinneedd BBuurrsstt SSRRAAMM))

For Socket 7 CPU, one burst data read requires four QWord (Quad-word, 4x16 = 64 bits). PBSRAM only needs one address decoding time and automatically sends the remaining QWords to CPU according to a predefined sequence. Normally, it is 3-1-1-1, total 6 clocks, which is faster than asynchronous SRAM. PBSRAM is often used on L2 (level 2) cache of Socket 7 CPU. Slot 1 and Socket 370 CPU do not need PBSRAM.

PPCC--110000 DDIIMMMM

SDRAM DIMM that supports 100MHz CPU FSB bus clock.

PPCC--113333 DDIIMMMM

SDRAM DIMM that supports 133MHz CPU FSB bus clock.

PPCC--11660000 oorr PPCC--22110000 DDDDRR DDRRAAMM

Based on FSB frequency, the DDR DRAM has 200MHz and 266MHz two type of working frequency. Because of DDR DRAM data bus is 64-bit, it provides data transfer bandwidth up to 200x64/8=1600MB/s, and 266x64/8=2100MB/s. Hence, the PC-1600 DDR DRAM is working with 100MHz and PC-2100 DDR DRAM is working with 133MHz FSB frequency.

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PPCCII ((PPeerriipphheerraall CCoommppoonneenntt IInntteerrffaaccee)) BBuuss

Bus for the internal connection of peripheral devices, high-speed data channel between the computer and expansion card.

PPDDFF FFoorrmmaatt

A file format for electronic document, PDF format is independent from platform, you can read PDF file under Windows, Unix, Linux, Mac … with different PDF reader. You can also read PDF file by web browser such as IE and Netscape, note that you need to install PDF plug-in first (Included in Acrobat Reader).

PPnnPP ((PPlluugg aanndd PPllaayy))

The PnP specification suggests a standard register interface for both BIOS and operating system (such as W indows 95). These registers are used by BIOS and operating system to configure system resource and prevent any conflicts. PnP BIOS or operating system will automatically allocate the IRQ/DMA/Memory. Currently, almost all the PCI cards and most ISA cards are already PnP compliant.

PPOOSSTT ((PPoowweerr--OOnn SSeellff TTeesstt))

The BIOS self-test procedure after power-on, sometimes, it is the first or the second screen shown on your monitor during system boot.

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RRDDRRAAMM ((RRaammbbuuss DDRRAAMM))

Rambus is a memory technology that uses large burst mode data transfer. Theoretically, the data transfer should be high than

SDRAM

channel, and this channel may have maximum 32 RDRAM devices, no matter how many RIMM

. RDRAM is cascaded in channel operation. For Intel 820, only one RDRAM channel is supported, 16-bit data per

RRIIMMMM ((RRaammbbuuss IInnlliinnee MMeemmoorryy MMoodduullee))

184-pin memory module that supports RDRAM memory technology. A RIMM memory module may contain up to maximum of 16 RDRAM devices.

SSDDRRAAMM ((SSyynncchhrroonnoouuss DDRRAAMM))

SDRAM is one of the DRAM technologies that allow DRAM to use the same clock as the CPU host bus (EDO and FPM are asynchronous and do not have clock signal). It is similar as PBSRAM 168-pin DIMM

SShhaaddooww E

A memory space in Flash-ROM to simulate E2PROM operation, AOpen motherboard uses Shadow E2PROM fo r jum per -less and battery-less design

and operates at 3.3V. AOpen is the first company to support dual-SDRAM DIMMs onboard (AP5V), from Q1 1996

PPRROOMM

sockets.

to use burst mode transfer. SDRAM comes in 64-bit

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SSIIMMMM ((SSiinnggllee IInn LLiinnee MMeemmoorryy MMoodduullee))

SIMM socket is only 72-pin, and is only single side. The golden finger signals on each side of PCB are identical. That is why it was called Single In Line. SIMM is made by FPM or EDO current motherboard design.

SSMMBBuuss ((SSyysstteemm MMaannaaggeemmeenntt BBuuss))

SMBus is also called I2C bus. It is a two-wire bus developed for component communication (especially for semiconductor IC). For example, set clock of clock generator for jumper-less motherboard. The data transfer rate of SMBus is only 100Kbit/s, it allows one host to communicate with CPU and many masters and slaves to send/receive message.

SSPPDD ((SSeerriiaall PPrreesseennccee DDeetteecctt))

SPD is a small ROM or EEPROM device resided on the DIMM or RIMM . SP D stores mem ory module information such as DRAM timing and chip parameters. SPD can be used by BIOS

DRAM and supports 32-bit data. SIMM had been phased out on

to decide best timing for this DIMM or RIMM.

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UUllttrraa DDMMAA

Ultra DMA (or, more accurately, Ultra DMA/33) is a protocol for transferring data between a hard disk drive through the computer’s data path (or bus) to the computer’s random access memory (RAM). The Ultra DMA/33 protocol transfers data in burst mode at a rate of 33.3MB/s, twice as fast as the previous Direct Access Memory (DMA) developed as a proposed industry standard by the Quantum corporation, makes of hard disk drives, and Intel, makes of chipset that support computer bus technology. Ultra DMA support in your computer means that it will boot (start) and open new applications more quickly. It will help users of graphic-intensive and applications that require large amounts of access to data on the hard disk drive. Ultra DMA uses Cyclical Redundancy Checking (CRC), offering a new level of data protection. Ultra DMA uses the s am e 40 -pi n ID E int e rfac e c abl e as P IO a nd D MA.

16.6MB/s x2 = 33MB/s

16.6MB/s x4 = 66MB/s

16.6MB/s x6 = 100MB/s

UUSSBB ((UUnniivveerrssaall SSeerriiaall BBuuss))

USB is a 4-pin serial peripheral bus that is capable of cascading low/medium speed peripherals (less than 10Mbit/s) such as keyboard, mouse, joystick, scanner, printer and modem. With USB, the traditional complex cables from back panel of your PC can be elim i nat ed .

interface. Ultra DMA was

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VVCCMM ((VViirrttuuaall CChhaannnneell MMeemmoorryy))

NEC’s Virtual Channel Memory (VCM) is a new DRAM core architecture that dramatically improves the memory system’s ability to service multimedia requirements. VCM increases memory bus efficiency and performance of any DRAM technology by providing a set of fast static registers between the memory core and I/O pins. Using VCM technology results in reduced data access latency and reduced power consumption.

ZZIIPP ffiillee

A compressed file format to reduce file size. To unzip file, run shareware PKUNZIP (http://www.pkware.com/) for DOS and other operating system or WINZIP (http://www.winzip.com/

) for windows environment.

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TTrroouubblleesshhoooottiinngg

If you encounter any trouble to boot you system, follow the procedures accordingly to resolve the problem.

Start

Turn off the power and unplug the AC power cable, then remove all of the

add-on cards and cables, including VGA, IDE, FDD, COM1, COM2 and

Make sure if all jumper settings are correct.

Clear CMOS

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Continue

Yes No

Install the VGA card. Then connect your monitor and keyboard.

Turn on the power

and check if the power

supply and CPU fan work

properly.

The problem is probably caused by

power supply or motherboard failure Please contact your reseller or local distributor for repairing.

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Press <Ctrl> and <Alt> key at the same time, hold

them and then press <Del> to reboot the system.

Continue

Check if there is display?

Yes

Check if the system

reboots?

Yes

Perhaps your VGA card

or monitor is defective.

It is very possible that your

keyboard is defective.

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During system rebooting, press <Del> to enter BIOS

setup. Choose “Load Setup Default”.

Turn off the system and re-connect IDE cable.

Re-install the operating system such as Windows 98.

Continue

Check if the system can

reboot successfully?

Yes

End

The problem should be

caused by the IDE cable or HDD itself.

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TTeecchhnniiccaall SSuuppppoorrtt

Dear Customer, Thanks for choosing AOpen products. To provide the best and fastest service to our customer is our first priority. However, we

receive numerous emails and phone-calls worldwide everyday, it is very hard for us to serve everyone on time. We recommend you follow the procedures below and seek help before contact us. With your help, we can then continue to provide the best quality service to more customers.

Thanks very much for your understanding! AOpen Technical Supporting Team

2 3 4

Online Manual: Please check the manual carefully and make sure the jumper s ettings and installation procedure are correct.

http://www.aopen.com.tw/tech/download/manual/default.htm

Test Report: We recommend choosing board/card/device from the compatibility test reports for assembling your PC.

http://www.aopen.com.tw/tech/report/default.htm

FAQ: The latest FAQ (Frequently Asked Questions) may contain a solution to your problem.

http://www.aopen.com.tw/tech/faq/default.htm

Download Software: Check out this table to get the latest updated BIOS/utility and drivers.

http://www.aopen.com.tw/tech/download/default.htm

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PPaarrtt NNuummbbeerr aanndd SSeerriiaall NNuummbbeerr

The Part Number and Serial number are printed on bar code label. You can find this bar code label on the outside packing, on ISA/CPU slot or on component side of PCB. For example:

P/N: 91.88110.201 is part number, S/N: 91949378KN73 is serial number.

News Group: Your problem probably had been answered by our support engineer or professional users on the news

group.

http://www.aopen.com.tw/tech/newsgrp/default.htm

Contact Distributors/Resellers: We sell our products through resellers and integrators. They should know your system configuration very well and should be able to solve your problem more efficiently than us. After all, their attitude of service is an important reference for you if next time you want to buy something else from them.

Contact Us: Please prepare detail system configuration and error symptom before contacting us. The part num ber , serial number and BIOS versi on are also very helpful.

Part No.

Serial No.

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MMooddeell nnaammee aanndd BBIIOOSS vveerrssiioonn

Model name and BIOS version can be found on upper left corner of first boot screen (POST screen). For example:

AX4 T I I is model name of motherboard, R1.00 is BIOS version.

AX4T II R1.00 Oct. 15. 2000 AOpen Inc.

ward Plug and Play BIOS Extension v1.0A

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PPrroodduucctt RReeggiissttrraattiioonn

Thank you for choosing AOpen product. AOpen encourages you to spend few minutes in completing the following product registration. To register your product will ensure the high quality of services from AOpen. After the registration, you will:

• Have opportunities to play online slot machine and win a prize from AOpen by accumulating your bonuses for later prize

exchange.

• Be upgraded to gold membership of Club AOpen program.

• Receive email notification about product safety alerts. Its purpose is to alert consumers quickly and conveniently when

products contain technical issues.

• Receive email notification about latest product's announcements.

• Be able to personalize your AOpen web pages.

• Receive e-mail notification about latest BIOS/Driver/Software release information.

• Have opportunities to participate special product promotional programs.

• Enjoy higher service priority to receive technical assistance provided by AOpen specialists worldwide.

• Be able to join the discussions of web-based news groups.

AOpen makes sure that the information you provide is encrypted, so that it cannot be read or intercepted by other people or companies. Further, AOpen will not disclose any of information you submitted under any conditions. Please consult our online

Note: If registering products purchased from different dealers/retails and/or purchased on different dates,

lease submit a separate form for each product.

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merica Open America Inc.

Tel: 1-510-498-8928

Fax: 1-408-922-2935, 1-408-432-0496

HHooww ttoo CCoonnttaacctt UUss

Please do not hesitate contact us if you have any problem about our products. Any opinion will be appreciated.

Pacific Rim

Open Inc. Tel: 886-2-2696-1333 Fax: 886-2-8691-2233

China

艾尔鹏国际上海(股)有限公司

Tel: 49-2102-157700 Fax: 49-2102-157799

Web Site: http://www.aopen.com.tw

E-mail: Send us email by going through the contact form below. English http://www.aopen.com.tw/tech/contact/techusa.htm Japanese http://aojp.aopen.com.tw/tech/contact/techjp.htm Chinese http://w3.aopen.com.tw/tech/contact/techtw.htm German http://www.aopencom.de/tech/contact/techde.htm French http://aofr.aopen.com.tw/tech/contact/techfr.htm Simplified Chinese http://www.aopen.com.cn/tech/contact/techcn.htm

Europe

Open Computer b.v. Tel: 31-73-645-9516 Fax: 31-73-645-9604

Germany

Open Computer GmbH. Tel: 49-2102-157700 Fax: 49-2102-157799

AOpen AX4TII User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

AX4T II

Chipset

Expansion Slots

Memory

Ultra DMA 33/66/100 Bus Mater IDE

On-board AC97 Sound

Four USB Connectors

Power Management/Plug and Play

Hardware Monitoring Management

Enhanced ACPI

Super Multi-I/O

Motherboard Map

IrDA Connector

Resettable Fuse

System Requirement

Fresh installation of Windows 98 on a new system

Changing from APM to ACPI (Windows 98 only)

Changing from ACPI to APM

System Requirement

Procedures