Page 1
AXX44BBSS PPrroo // AAXX44BBSS--VV
A
OOnnlliinnee MMaannuuaall
Overview
AX4BS Pro / AX4BS-V
DOC. NO.: AX4BSV-OL-E0109B
1
Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
Page 2
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
WWhhaatt’’ss iinn tthhiiss mmaannuuaall
AX4BS Pro / AX4BS-V ........................................................................................................................ 1
What’s in this manual ...................................................................................................................................................... 2
You Must Notice ..............................................................................................................................................................9
Before You Start............................................................................................................................................................ 10
Overview ....................................................................................................................................................................... 11
Feature Highlight........................................................................................................................................................... 12
Quick Installation Procedure .........................................................................................................................................16
Motherboard Map .......................................................................................................................................................... 17
Block Diagram...............................................................................................................................................................18
Hardware Installation.................................................................................................................. 19
About “Optional” and “Upgrade Optional”… ..................................................................................................................20
JP14 Clear CMOS Data ................................................................................................................................................21
CPU Installation ............................................................................................................................................................22
CPU Fan Installation .....................................................................................................................................................24
CPU Jumper-less Design .............................................................................................................................................. 25
Full-range Adjustable CPU Core Voltage (AX4BS Pro Only) ......................................................................................... 26
AOpen “Watch Dog Timer” ............................................................................................................................................ 27
Setting CPU Core Voltage............................................................................................................................................. 28
2
Page 3
AAXX44BBSS PPrroo // AAXX44BBSS--VV
CPU and Housing Fan Connector (with H/W Monitoring) ..............................................................................................31
DIMM Socket................................................................................................................................................................. 32
Front Panel Connector .................................................................................................................................................. 34
ATX Power Connector...................................................................................................................................................35
AC Power Auto Recovery .............................................................................................................................................. 36
JP28 Keyboard/Mouse Wake-up Enable/Disable Jumper.............................................................................................. 37
JP30 Die-Hard BIOS (100% Virus Protection) (Optional) .............................................................................................. 38
IDE and Floppy Connector ............................................................................................................................................ 39
IrDA Connector .............................................................................................................................................................41
WOM (Zero Voltage Wake on Modem) Connector.........................................................................................................42
WOM by External BOX Modem ..................................................................................................................................... 43
WOM by Internal Modem Card......................................................................................................................................44
WOL (Wake on LAN)..................................................................................................................................................... 45
AGP (Accelerated Graphic Port) Expansion Slot ........................................................................................................... 46
CNR (Communication and Network Riser) Expansion Slot............................................................................................ 47
PC99 Color Coded Back Panel ..................................................................................................................................... 48
Support 2nd USB Port .................................................................................................................................................... 49
Chassis Intrusion Sensor .............................................................................................................................................. 50
CD Audio Connector ..................................................................................................................................................... 51
OOnnlliinnee MMaannuuaall
3
Page 4
AAXX44BBSS PPrroo // AAXX44BBSS--VV
Modem Audio Connector ............................................................................................................................................... 52
AUX-IN Connector ........................................................................................................................................................ 53
Front Audio Connector ..................................................................................................................................................54
Dr. LED Connector........................................................................................................................................................ 55
Dr. Voice Connector (AX4BS Pro Only)......................................................................................................................... 58
GPO (General Purpose Output) Connector ...................................................................................................................59
Battery-less and Long Life Design ................................................................................................................................ 60
Over-current Protection ................................................................................................................................................. 61
Hardware Monitoring ..................................................................................................................................................... 62
Resettable Fuse ............................................................................................................................................................ 63
Low ESR Capacitor ....................................................................................................................................................... 64
Layout (Frequency Isolation Wall) ................................................................................................................................. 65
Pure Aluminum Heatsink ............................................................................................................................................... 66
Driver and Utility ......................................................................................................................... 67
Auto-run Menu from Bonus CD Disc ............................................................................................................................. 68
Installing Chipset Software Installation Utility ................................................................................................................ 69
Installing Ultra ATA/100 IDE Driver................................................................................................................................ 70
Installing Onboard Sound Driver ................................................................................................................................... 71
Installing Hardware Monitoring Utility ............................................................................................................................ 72
OOnnlliinnee MMaannuuaall
4
Page 5
AAXX44BBSS PPrroo // AAXX44BBSS--VV
ACPI Suspend to Hard Drive......................................................................................................................................... 73
ACPI Suspend to RAM (STR)........................................................................................................................................ 77
AWARD BIOS ................................................................................................................................ 79
About BIOS Function Description… .............................................................................................................................. 80
How To Use Award™ BIOS Setup Program ..................................................................................................................81
How To Enter BIOS Setup............................................................................................................................................. 82
BIOS Upgrade...............................................................................................................................................................83
Overclocking ................................................................................................................................ 85
VGA Card & Hard Disk..................................................................................................................................................86
Glossar y ....................................................................................................................................... 87
AC97.............................................................................................................................................................................87
ACPI (Advanced Configuration & Power Interface) ....................................................................................................... 87
AGP (Accelerated Graphic Port) ................................................................................................................................... 87
AMR (Audio/Modem Riser)............................................................................................................................................ 88
AOpen Bonus Pack CD ................................................................................................................................................. 88
APM (Advanced Power Management)........................................................................................................................... 88
ATA (AT Attachment) .....................................................................................................................................................88
ATA/66 ..........................................................................................................................................................................88
ATA/100 ........................................................................................................................................................................ 89
OOnnlliinnee MMaannuuaall
5
Page 6
AAXX44BBSS PPrroo // AAXX44BBSS--VV
BIOS (Basic Input/Output System) ................................................................................................................................ 89
Bus Master IDE (DMA mode) ........................................................................................................................................ 89
CNR (Communication and Networking Riser)................................................................................................................ 89
CODEC (Coding and Decoding) .................................................................................................................................... 90
DDR (Double Data Rated) SDRAM ............................................................................................................................... 90
DIMM (Dual In Line Memory Module)............................................................................................................................90
DMA (Direct Memory Access)........................................................................................................................................ 90
ECC (Error Checking and Correction) ........................................................................................................................... 91
EDO (Extended Data Output) Memory .......................................................................................................................... 91
EEPROM (Electronic Erasable Programmable ROM).................................................................................................... 91
EPROM (Erasable Programmable ROM) ...................................................................................................................... 91
EV6 Bus ........................................................................................................................................................................ 92
FCC DoC (Declaration of Conformity) ...........................................................................................................................92
FC-PGA (Flip Chip-Pin Grid Array)................................................................................................................................92
Flash ROM .................................................................................................................................................................... 92
FSB (Front Side Bus) Clock ..........................................................................................................................................93
I2C Bus.......................................................................................................................................................................... 93
IEEE 1394.....................................................................................................................................................................93
Parity Bit ....................................................................................................................................................................... 94
OOnnlliinnee MMaannuuaall
6
Page 7
AAXX44BBSS PPrroo // AAXX44BBSS--VV
PBSRAM (Pipelined Burst SRAM).................................................................................................................................94
PC-100 DIMM ............................................................................................................................................................... 94
PC-133 DIMM ............................................................................................................................................................... 94
PC-1600 or PC-2100 DDR DRAM ................................................................................................................................. 95
PCI (Peripheral Component Interface) Bus ...................................................................................................................95
PDF Format................................................................................................................................................................... 95
PnP (Plug and Play) ...................................................................................................................................................... 95
POST (Power-On Self Test) .......................................................................................................................................... 96
RDRAM (Rambus DRAM) ............................................................................................................................................. 96
RIMM (Rambus Inline Memory Module) ........................................................................................................................ 96
SDRAM (Synchronous DRAM) ...................................................................................................................................... 96
Shadow E2PROM .......................................................................................................................................................... 97
SIMM (Single In Line Memory Module) ......................................................................................................................... 97
SMBus (System Management Bus) ............................................................................................................................... 97
SPD (Serial Presence Detect)....................................................................................................................................... 97
Ultra DMA .....................................................................................................................................................................98
USB (Universal Serial Bus) ........................................................................................................................................... 98
VCM (Virtual Channel Memory)..................................................................................................................................... 99
ZIP file........................................................................................................................................................................... 99
OOnnlliinnee MMaannuuaall
7
Page 8
AAXX44BBSS PPrroo // AAXX44BBSS--VV
Troubleshooting......................................................................................................................... 100
Technical Support ..................................................................................................................... 104
Product Registration ................................................................................................................. 107
How to Contact Us ....................................................................................................................108
OOnnlliinnee MMaannuuaall
8
Page 9
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
YYoouu MMuusstt NNoottiiccee
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
©
1996-2000, AOpen Inc. All Rights Reserved.
9
Page 10
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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
.
10
Page 11
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
OOvveerrvviieeww
Thank you for choosing AOpen AX4BS Pro / AX4BS-V motherboard. This motherboard is Intel® Pentium 4
(Willamette/Northwood) motherboard (M/B) based on the ATX form featuring the Intel
performance chipset built in the M/B, this motherboard can support Intel
clock. In the AGP performance, it supports on-board AGP function in 1X/2X/4x mode and pipelined spilt-transaction long burst
transfer up to 1066MB/sec. Besides, PC-100/PC-133 SDRAM
size can be up to 3GB. 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. This
motherboard has an AC97
and amazing surround stereo sound to let people enjoy working with it.
Now, welcome to enjoy all features from AOpen AX4BS Pro / AX4BS-V
motherboard.
®
®
Pentium® 4 and 100/400MHz Front Side Bus (FSB)
can be applied to this motherboard and the maximum memory
33/66/100 mode and the transfer rate up to 100MB/s.
CODEC chipset onboard to provide high performance
845 (Brookdale) chipset. With a high
card option that allows
11
Page 12
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
FFeeaattuurree HHiigghhlliigghhtt
CPU
Supports Intel® Socket 478 Pentium® 4 1.5GHz~2.4GHz+ with 400MHz system bus designed for Socket 478 technology.
Chipset
Intel delivers a discrete graphics solution with all the performance, innovative features and proven reliability of the Intel® 845
chipset (Brookdale). With its highly scalable design, the new 845 chipset offers an ideal, leading-edge AGP graphics solution for
Intel® Pentium® 4 processor platforms. And the smart integration in the Intel 845 chipset's I/O Controller Hub (ICH2) features two
USB controllers supporting four USB ports. With support for 5.1 channels of AC’97 audio and the ability to make the most of soft
audio/modem technology, the 845 chipset delivers an ideal solution for innovative new form factors.
Expansion Slots
Including five 32-bit/33MHz PCI and one CNR expansion slots. The PCI local bus throughput can be up to 132MB/s. The
Accelerated Graphics Port (AGP)
cards support data transfer rate up to 1066MB/s. As AX4BS Pro / AX4BS-V motherboard includes one AGP expansion slot for a
bus mastering AGP graphic card. For AD and SBA signaling, AX4BS Pro / AX4BS-V can support 133MHz 2X/4X mode.
specification provides a new level of video display sophistication and speed. The AGP video
12
Page 13
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
Memory
This motherboard provides three 168-pin SDRAM DIMM socket that support up to 3GB of PC-100 and PC-133 compliant
SDRAM (Synchronous Dynamic Random Access Memory). You may install 64, 128, 256 and 512MB with Non-ECC SDRAM
modules.
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
AX4BS Pro / AX4BS-V is equipped with the AC97 sound chip. This on-board audio includes a complete audio recording and
playback system.
1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you adjust CPU FSB
frequency from 100~248MHz by 1MHz stepping adjustment, and lets your system can get maximum performance.
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
13
Page 14
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
Die-Hard BIOS (Optional)
The Die-Hard BIOS technology is a very effective hardware protection method that doesn’t involve any software or BIOS coding.
Hence, it is 100% virus free.
Dr. LED
The Dr. LED has 8 LEDs on this motherboard to easily show what problem you may encounter.
Dr. Voice (AX4BS Pro Only)
The Dr. Voice provides 4 language versions (English, Chinese, Japanese and German) that can easily tell you what problem you
may encounter. Specially tailored made for users, we have defaulted the language versions of Japanese market to Japanese
only to save users from the trouble of setting jumpers, and thus making motherboard a real jumper less design.
Power Management/Plug and Play
The AX4BS Pro / AX4BS-V 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
configuration problems, thus making system user-friendly.
, which helps save users from
Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor
module and AOpen Hardware Monitoring Utility
.
14
Page 15
AAXX44BBSS PPrroo // AAXX44BBSS--VV
Enhanced ACPI
Fully implement the ACPI standard for Windows® 95/98/ME/NT/2000 series compatibility, and supports Soft-Off, STR (Suspend
to RAM, S3), STD (Suspend to Disk, S4) features.
Super Multi-I/O
AX4BS Pro / AX4BS-V 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.
OOnnlliinnee MMaannuuaall
15
Page 16
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree
This page gives you a quick procedure on how to install your system. Follow each step accordingly.
1.
Installing CPU and Fan
2.
Installing System Memory (DIMM
3.
Connecting Front Panel Cable
4.
Connecting IDE and Floppy Cable
5.
Connecting ATX Power Cable
6.
Connecting Back Panel Cable
7.
Power-on and Load BIOS Setup Default
8.
Setting CPU Frequency
9.
Reboot
10.
Installing Operating System (such as Windows 98)
11.
Installing Driver and Utility
16
Page 17
AAXX44BBSS PPrroo // AAXX44BBSS--VV
A
A
r
r
r
r
CD-IN Connecto
MODEM-CN Connector
AUX-IN Connector
Die Hard BIOS (Optional)
CNR Expansion Slot
AGP 4x Expansion Slot
32-bit PCI Expansion
Slotx5
IrDA Connector
WOM Connector
GPO Connecto
JP14 CMOS Clear Jumpe
and JP30 Die Hard BIOS
Select Jumper (Optional)
Chassis Intrusion Detector
nd
USB Port Connector
2
Front Panel Connector
JP15 & JP16 Dr. Voice
Language Select Jumpers
Front Panel Audio
Dr. LED Connecto
FAN3 Connector
(AX4BS Pro Only)
ATA33/66/100 IDE
Connector x2
OOnnlliinnee MMaannuuaall
Motherboard Map
PC99 Colored Back Panel
17
JP28 Keyboard/Mouse
Wakeup Jumper
4-pin 12V ATX connector
Low ESR Capacitors
478-pin CPU Socket with
Frequency/Voltage
uto-detection that supports
®
Pentium® 4
Intel
1.5GHz~2.4GHz+ CPU
Intel® 845 Chipset
CPU Fan Connector
FAN2 Connector
168-pin DIMM Socket x3
supports maximum memory
size up to 3GB
TX Power Connector
Extra Power Connector for
5V & 3.3V
FDD Connector
Page 18
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
BBlloocckk DDiiaaggrraamm
AGP 1.5V
44XX AAGGPP
1.5V
PCI Card
CNR Card
MIC, Line-in
and Speaker
UUSSBB
Memory Control Hub
(MCH)
Hub Link
I/O Control
PPCCII BBuuss
AC97 Link
Audio
CODEC
Hub (ICH2)
CPU
100/400MHz FSB
PC100/133
Memory Bus
Low Pin
Count
Super
I/O
ATA
33/66/100
IDE Bus
LPC
Clock Generator
IMM
DDI
HDD/CDROM
4Mb BIOS ROM
Floppy
Serial port, Printer
and PS/2 KB/Mouse
18
Page 19
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
HHaarrddwwaarree IInnssttaallllaattiioonn
This chapter describes jumpers, connectors and hardware devices of this motherboard.
Note: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and
other components. Always read 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 throughout any
procedure requiring ESD protection.
19
Page 20
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 “Optional”,
and some are “Upgrade Optional”. This is because all of AOpen motherboards include many amazing and powerful features;
however, some of these are not frequently used on daily operation. Therefore, we define some key features as optional to meet
different requirements. Functions that can be upgraded by users are defined as “Upgrade Optional”. The other optional functions
which may have been built on the motherboards and which you cannot upgrade by yourself, we call them “Optional”. If needed,
you can contact your local distributors or resellers to purchase “Upgrade Optional” components. Also you can visit AOpen official
web site: www.aopen.com.tw
to get detailed information.
20
Page 21
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
JJPP1144 CClleeaarr CCMMOOSS DDaattaa
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 pin 1 & pin 2.
5. Connect ATX power cable back to connector PWR2.
Normal Operation
(default)
Pin 1
1
2
3
1
2
3
Clear CMOS
Tip: When should I Clear CMOS?
1. Boot fail because of overclocking…
2. Forget password…
3. Troubleshooting…
21
Page 22
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
CCPPUU IInnssttaallllaattiioonn
This motherboard supports Intel® Pentium 4, Socket 478 CPU. Beware of CPU orientation when you plug it into CPU socket. To
finish CPU installation, please follow the procedure as shown below:
1. Pull up the CPU socket lever 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: The CPU you purchase may look different from the one shown here.
CPU socket
Lever
CPU pin 1 and
cut edge
CPU cut edge
22
Page 23
AAXX44BBSS PPrroo // AAXX44BBSS--VV
y
3. Press down the CPU socket lever and finish
CPU installation.
Note: The CPU you purchase may look different from the one shown here.
CPU cut edge
OOnnlliinnee MMaannuuaall
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
ma
damage the CPU.
Note: This socket supports
Micro-FC-PGA2 package CPU, which
is the latest CPU package developed
by Intel. Other forms of CPU package
are impossible to be fitted in.
23
Page 24
AAXX44BBSS PPrroo // AAXX44BBSS--VV
y
OOnnlliinnee MMaannuuaall
CCPPUU FFaann IInnssttaallllaattiioonn
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 ventilation. Please correctly
install the CPU fan according to following steps.
1. Gently put the CPU fan down on the
retention module with clips aligning
correctly to the four corners.
Note: To avoid any damage to your
CPU socket, we don’t recommend you
to uninstall the CPU fan frequentl
. Pressing down four clips one by one to securely
install the CPU fan.
.
24
Page 25
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
CCPPUU JJuummppeerr--lleessss DDeessiiggnn
CPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allow the user to set CPU frequency
through BIOS setup
designs are eliminated. There will be no worry of wrong CPU voltage detection anymore.
; therefore, no jumpers or switches are used. The disadvantages of original Pentium based jumper-less
Intel® Socket 478
Pentium 4 CPU
CPU VID signal
Power Regulator
(Automatically generates CPU voltage)
CPU Freq. Ratio
CPU voltage
Clock
Generator
BIOS
Controlled
Circuit
25
Page 26
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
FFuullll--rraannggee AAddjjuussttaabbllee CCPPUU CCoorree VVoollttaaggee ((AAXX44BBSS PPrroo OOnnllyy))
This function is dedicated to overclockers and supports Adjustable CPU Core Voltage from 1.10V to 1.85. But this motherboard
can also automatically detect CPU VID signal and generates proper CPU core voltage.
BIOS Setup > Frequency/Voltage Control > CPU Voltage Setting
Warning: Higher CPU core voltage may be
able to increase CPU speed for overclocking,
but you may damage the CPU or reduce the
CPU lifecycle
26
Page 27
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
AAOOppeenn ““WWaattcchh DDoogg TTiimmeerr””
With this motherboard, AOpen provides a very special, useful feature for overclockers. When you power-on the system, the
BIOS will check last system POST
the CPU FSB
reset the system to reboot in five seconds. Then, BIOS will detect the CPU’s default frequency and POST again. With this
special feature, you can easily overclock your system to get higher system performance, and without removing the cover of
system housing to set the jumper to clear CMOS data when your system hanged.
frequency by user’s setting that stored in the BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will
AOpen
Watch Dog
Timer
status. If it succeeded, the BIOS will enable “Watch Dog Timer” function immediately, and set
Enable/Disable Signal
from BIOS
Countdown about
5 seconds if fails
in POST
Reset Signal
Clock Generator
BIOS
CPU ID Signal
CPU
27
Page 28
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
SSeettttiinngg CCPPUU CCoorree VVoollttaaggee
This motherboard supports CPU VID function. The CPU core voltage will be automatically detected and the range is from 1.10V
to 1.85V. It is no need to set CPU Core Voltage.
28
Page 29
AAXX44BBSS PPrroo // AAXX44BBSS--VV
SSeettttiinngg CCPPUU FFrreeqquueennccy
This motherboard is CPU jumper-less design; you can set CPU frequency in the BIOS setup. No jumpers or switches are
needed.
BIOS Setup > Frequency/Voltage Control > CPU Speed Setting
CPU Ratio
CPU FSB
Warning: Intel® 845 chipset supports maximum
400MHz system bus (100MHz * 4) and 66MHz AGP
clock. Higher clock setting may cause serious
system damage.
y
8x, 9x, 10x,…22x, 23x, 24x
100~248MHz
Home
OOnnlliinnee MMaannuuaall
Tip: If your system hangs or fails to boot
because of overclocking, simply use <Home>
key to restore the default setting.
29
Page 30
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
SSuuppppoorrtteedd CCPPUU FFrreeqquueennccyy
Core Frequency = CPU Bus Clock * 4 * CPU Ratio
PCI Clock = CPU Bus Clock / Clock Ratio
AGP Clock = PCI Clock x 2
CPU CPU Core Frequency FSB Clock Ratio
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 2.4G 2.4GHz 100MHz 24x
Warning: Intel® 845 chipset supports maximum 400MHz system bus
(100MHz * 4) and 66MHz AGP clock. Higher clock setting may cause
serious system damage.
Note: This motherboard supports CPU
auto-detection function. Therefore, you
don’t need to set CPU frequency by
manual.
30
Page 31
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
CCPPUU aanndd HHoouussiinngg FFaann CCoonnnneeccttoorr ((wwiitthh HH//WW MMoonniittoorriinngg))
Plug in the CPU fan cable to the 3-pin CPU FAN connector. If you have chassis fan, you can also plug it on FAN2 or FAN3
connector.
FAN2 Connector
CPU FAN Connector
Note: Some CPU fans do not have
sensor pin, so they cannot support fan
monitoring.
GND
+12V
SENSOR
FAN3 Connector
31
Page 32
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
DDIIMMMM SSoocckkeett
This motherboard has three 168-pin DIMM sockets that allow you to install PC100 / PC-133 memory up to 3GB. The AX4BS Pro
/ AX4BS-V supports SDRAM Modules.
DIMM1
DIMM2
DIMM3
32
Page 33
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
HHooww ttoo IInnssttaallll MMeemmoorryy MMoodduulleess
Please follow the procedure as shown to install memory.
1. Make sure to put the module pins face down and match the socket’s size as depicted below.
2. Insert the module straight down to the DIMM slot with both hands and press firmly until the DIMM module is securely in
place.
3. Repeat step 2 to install the other DIMM modules.
Ta b
88 pins60 pins20 pins
Note: The tabs of the DIMM slot
will close-up and hold the
memory module in place when
the module has been firmly
located.
33
Page 34
AAXX44BBSS PPrroo // AAXX44BBSS--VV
e
K
V
V+5V
OOnnlliinnee MMaannuuaall
FFrroonntt PPaanneell CCoonnnneeccttoorr
PIN1
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 LED
Power on Suspend (S1) Flashing for every second
Suspend to RAM (S3) or Suspend to Disk (S4) The LED will be turned off
1
Keylock
IDE LED
Speaker
GND
KEYLOC
+5
IDE LED
+
+
+
ACPI &
PWR LED
IDE LED
+5
GND
NC
SPEAKER
Reset
5VSB
SPWR
ACPILED -
GND
ACPILED+
NC
NC
GND
RESET
GND
34
Page 35
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
AATTXX PPoowweerr CCoonnnneeccttoorr
This motherboard comes with a 20-pin and 4-pin ATX power connector with an extra power connector for 5V/3.3V 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.
20-Pin Power Connector
4-Pin 12V ATX Power Connector
Extra Power Connector for 5V/3.3V
COM
+5V
COM
+3.3V
+3.3V
+
-12V
PS-ON
COM
35
1
3
12V
GND
2
4
+5V
COM
PWR-O K
COM
+12V
+5V
+
-5V
COM
COM
+
+3.3V
Page 36
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
AACC PPoowweerr AAuuttoo RReeccoovveerryy
A traditional ATX system remains power off when AC power resumes from power failure. This design is inconvenient for a
network server or workstation, without an UPS, that needs to stay power-on. To solve this problem, this motherboard
implements an AC Power Auto Recovery function.
36
Page 37
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
JJPP2288 KKeeyybbooaarrdd//MMoouussee WWaakkee--uupp EEnnaabbllee//DDiissaabbllee JJuummppeerr
This motherboard provides keyboard and mouse wake-up functions. You can use the JP28 to enable or disable this function.
1
Disable
(Default)
JP28
KB/Mouse Wake-up
1
Enable
37
Page 38
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
JJPP3300 DDiiee--HHaarrdd BBIIOOSS ((110000%% VViirruuss PPrrootteeccttiioonn)) ((OOppttiioonnaall))
Recently many viruses have been found that may destroy bios code and data area. This motherboard implements a very
effective hardware protection method that does not involve any software or BIOS coding, hence is 100% virus free. There is a
BIOS flash ROM mounted on the M/B when you get it. If you want to add extra BIOS flash ROM, please contact the local
distributor or reseller. You also can link to AOpen official website: www.aopen.com.tw
1
Normal
(Default)
1
Rescue
Pin 1
by Internet to purchase it.
38
Page 39
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
IIDDEE aanndd FFllooppppyy CCoonnnneeccttoorr
Connect 34-pin floppy cable and 40-pin IDE cable to FDD floppy connector and IDE connector. For clear identification, the blue
connector is IDE1. Be careful of the pin1 orientation. Wrong orientation may cause system damage.
ATA 33/66/100 IDE
Connector
Pin 1
FDD Connector
Primary
Slave (2nd)
Pin 1
Secondary
Slave (4th)
Primary
Master (1st)
Secondary
Master (3rd)
39
Page 40
AAXX44BBSS PPrroo // AAXX44BBSS--VV
IDE1 is also known as a primary channel and IDE2 as 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 ATA3 3
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
, ATA 66 or ATA100 IDE devices. Following table lists the transfer rate of IDE PIO and DMA
Cycle Time Data Transfer Rate
Count
OOnnlliinnee MMaannuuaall
40
Page 41
AAXX44BBSS PPrroo // AAXX44BBSS--VV
r
X
OOnnlliinnee MMaannuuaall
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
to have the correct orientation when you plug in the IrDA connector.
IR_T IR_RX
, make sure
Pin 1
IrDA Connecto
NC
+5V GND
41
Page 42
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
WWOOMM ((ZZeerroo VVoollttaaggee WWaakkee oonn MMooddeemm)) CCoonnnneeccttoorr
TThhiiss mmootthheerrbbooaarrdd iimmpplleemmeennttss ssppeecciiaall cciirrccuuiitt ttoo ssuuppppoorrtt WWaakkee OOnn MMooddeemm,, bbootthh IInntteerrnnaall mmooddeemm ccaarrdd aanndd eexxtteerrnnaall bbooxx mmooddeemm
aarree ssuuppppoorrtteedd.. SSiinnccee IInntteerrnnaall mmooddeemm ccaarrdd ccoonnssuummeess nnoo ppoowweerr wwhheenn ssyysstteemm ppoowweerr iiss ooffff,, iitt iiss rreeccoommmmeennddeedd ttoo uussee aann iinntteerrnnaall
mmooddeemm.. TToo uussee iinntteerrnnaall mmooddeemm,, ccoonnnneecctt 44--ppiinn ccaabbllee ffrroomm RRIINNGG ccoonnnneeccttoorr ooff mmooddeemm ccaarrdd ttoo tthhee WWOOMM ccoonnnneeccttoorr oonn tthhee
mmootthheerrbbooaarrdd..
Pin 1
WOM Connector
+5VSB
NC
RI-
GND
42
Page 43
AAXX44BBSS PPrroo // AAXX44BBSS--VV
WWOOMM bbyy EExxtteerrnnaall BBOOXX MMooddeem
m
OOnnlliinnee MMaannuuaall
TTrraaddiittiioonnaall GGrreeeenn PPCC ssuussppeenndd mmooddee ddooeess nnoott rreeaallllyy ttuurrnn ooffff tthhee ssyysstteemm ppoowweerr ssuuppppllyy,, iitt uusseess eexxtteerrnnaall bbooxx mmooddeemm ttoo ttrriiggggeerr MMBB
CCOOMM ppoorrtt aanndd rreessuummee bbaacckk ttoo aaccttiivvee..
Serial Port
(Modem Side)
Pin 1
Serial Port
(Motherboard Side)
43
Page 44
AAXX44BBSS PPrroo // AAXX44BBSS--VV
WWOOMM bbyy IInntteerrnnaall MMooddeemm CCaarrd
d
OOnnlliinnee MMaannuuaall
WWiitthh tthhee hheellpp ooff tthhee AATTXX ssoofftt ppoowweerr OOnn//OOffff,, iitt iiss ppoossssiibbllee ttoo hhaavvee aa ssyysstteemm ttoottaallllyy ppoowweerr ooffff,, aanndd wwaakkeeuupp ttoo aauuttoommaattiiccaallllyy aannsswweerr
aa pphhoonnee ccaallll aass aann aannsswweerriinngg mmaacchhiinnee oorr ttoo sseenndd//rreecceeiivvee aa ffaaxx.. YYoouu mmaayy iiddeennttiiffyy wwhheetthheerr oorr nnoott yyoouurr ssyysstteemm iiss iinn ttrruuee ppoowweerr ooffff
mmooddee bbyy cchheecckkiinngg ttoo sseeee iiff tthhee ffaann ooff yyoouurr ppoowweerr ssuuppppllyy iiss ooffff.. BBootthh aann eexxtteerrnnaall bbooxx mmooddeemm aanndd aann iinntteerrnnaall mmooddeemm ccaarrdd ccaann bbee
uusseedd ttoo ssuuppppoorrtt MMooddeemm WWaakkee UUpp,, bbuutt iiff yyoouu uussee aann eexxtteerrnnaall mmooddeemm,, yyoouu hhaavvee ttoo lleeaavvee yyoouurr bbooxx mmooddeemm oonn..
44
Page 45
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
WWOOLL ((WWaakkee oonn LLAANN))
This feature is very similar as Wake On Modem, but it goes through local area network. To use Wake On LAN function, you must
have a network card with chipset that supports this feature, and connect a cable from LAN card to motherboard WOL connector.
The system identification information (probably IP address) is stored on network card and because there is a lot of traffic on the
Ethernet, you need to install network management software, such as ADM, for the checking of how to wake up the system. Note
that, at least 600mA ATX standby current is required to support the LAN card for this function.
+5VSB
GND
LID
45
Page 46
AAXX44BBSS PPrroo // AAXX44BBSS--VV
A
OOnnlliinnee MMaannuuaall
AAGGPP ((AAcccceelleerraatteedd GGrraapphhiicc PPoorrtt)) EExxppaannssiioonn SSlloott
The AX4BS Pro / AX4BS-V provides an AGP 4x slot. The AGP 4x 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. 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 4bytes x 2 = 528MB/s. AGP is now moving
to AGP 4x mode, 66MHz x 4bytes x 4 = 1056MB/s.
GP Expansion Slot
Warning: This motherboard supports
1.5V 4x AGP only; please DO NOT
Insert 3.3V AGP cards to prevent your
motherboard from serious damage.
46
Page 47
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
CCNNRR ((CCoommmmuunniiccaattiioonn aanndd NNeettwwoorrkk RRiisseerr)) EExxppaannssiioonn SSlloott
CCNNRR iiss aa rriisseerr ccaarrdd ssppeecciiffiiccaattiioonn ttoo rreeppllaaccee tthhee AAMMRR ((AAuuddiioo//MMooddeemm RRiisseerr)) tthhaatt ssuuppppoorrttss VV..9900 aannaalloogg mmooddeemm,, mmuullttii--cchhaannnneell
aauuddiioo,, aanndd pphhoonnee--lliinnee bbaasseedd nneettwwoorrkkiinngg.. OOwwiinngg ttoo CCPPUU ccoommppuuttiinngg ppoowweerr ggeettttiinngg ssttrroonnggeerr,, tthhee ddiiggiittaall pprroocceessssiinngg jjoobb ccaann bbee
iimmpplleemmeenntteedd iinn mmaaiinn cchhiippsseett aanndd sshhaarree CCPPUU ppoowweerr.. TThhee aannaallooggyy ccoonnvveerrssiioonn ((CCOODDEEC
cciirrccuuiitt ddeessiiggnn,, wwhhiicchh iiss ppuutt oonn CCNNRR ccaarrdd.. TThhiiss mmootthheerrbbooaarrdd iimmpplleemmeennttss ssoouunndd CCOODDEECC oonn bbooaarrdd ((ccaann bbee ddiissaabblleedd bbyy BBIIOOSS
sseettuupp pprrooggrraamm)),, bbuutt rreesseerrvvee CCNNRR sslloott ffoorr tthhee ooppttiioonn ooff mmooddeemm ffuunnccttiioonn.. NNoottee tthhaatt yyoouu ccaann ssttiillll uussee PPCCII mmooddeemm ccaarrdd..
C
)) cciirrccuuiitt rreeqquuiirreess aa ddiiffffeerreenntt aanndd sseeppaarraattee
47
Page 48
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
PPCC9999 CCoolloorr CCooddeedd BBaacckk PPaanneell
The onboard I/O devices are PS/2 Keyboard, PS/2 Mouse, serial ports COM1 and COM2, Printer, four USB, AC97 sound and
game port. The view angle of drawing shown here is from the back panel of the housing.
PS/2 Keyboard: For standard keyboard, which is using a PS/2 plug.
PS/2 Mouse: For PC-Mouse, which is using a PS/2 plug.
USB Port: Available for connecting USB devices.
Parallel Port: To connect with SPP/ECP/EPP printer.
COM1/COM2 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.
PS/2 Mouse
Connector
PS/2 Keyboard
Connector
USB
Connectors
COM 1 Port
SPP/EPP/ECP
Parallel Port
MIDI/Game Port
COM2 Port
MIC-In
Line-In
Speaker Out
48
Page 49
AAXX44BBSS PPrroo // AAXX44BBSS--VV
5
d
nnd
SSuuppppoorrtt 2
This motherboard supports four USB ports. Two of them are on back panel connector, the other two are on the left side of this
motherboard. With proper cable, you can connect them to front panel.
2
UUSSBB PPoorrtt
Pin 1
SBD2+
SBD2-
V
+
2
1
+5V
SBD3-
SBD3+
nd
USB Port Connector
2
10
9
OOnnlliinnee MMaannuuaall
GND
OVER CURRENT
KEY
GND
49
Page 50
AAXX44BBSS PPrroo // AAXX44BBSS--VV
1
OOnnlliinnee MMaannuuaall
CChhaassssiiss IInnttrruussiioonn SSeennssoorr
The “CASE OPEN” header provides chassis intrusion-monitoring function. This function logged the event in the system BIOS
when chassis is opened. You can use the 2-pin chassis intrusion sensor to connect with this header, and enable the chassis
monitoring function of system BIOS.
SENSOR
GND
Chassis Intrusion
Sensor Connector
50
Page 51
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
CCDD AAuuddiioo CCoonnnneeccttoorr
This connector is used to connect CD Audio cable from CDROM or DVD drive to onboard sound.
GND GND L R
CD-IN
51
Page 52
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 there is no standard for this kind of connector yet, only some internal
modem cards implement this connector.
GND GND
MIC OUT MONO IN
MODEM-CN
52
Page 53
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
AAUUXX--IINN CCoonnnneeccttoorr
TThhiiss ggrreeeenn ccoonnnneeccttoorr iiss uusseedd ttoo ccoonnnneecctt MMPPEEGG AAuuddiioo ccaabbllee ffrroomm MMPPEEGG ccaarrdd ttoo oonnbbooaarrdd ssoouunndd..
L
GND
R
GND
53
Page 54
AAXX44BBSS PPrroo // AAXX44BBSS--VV
A
OOnnlliinnee MMaannuuaall
FFrroonntt AAuuddiioo CCoonnnneeccttoorr
If the housing has been designed with an audio port on the front panel, you’ll be able to connect onboard audio to front panel
through this connector.
MIC_IN2
FRONT_R
FRONT L
NC
NC
1 2
9 10
Pin 1
GND
+5V
JS1
NC
AUX-IN
Note: Please remove the jumper cap from the Front Panel
udio Connector before you connect the cable. Do not remove
this yellow jumper cap if housing without an audio port on the
front panel.
54
Page 55
AAXX44BBSS PPrroo // AAXX44BBSS--VV
r
OOnnlliinnee MMaannuuaall
DDrr.. LLEEDD CCoonnnneeccttoorr
In conjunction with Dr. LED (Upgrade Optional), which can easily show what kind of problem you may incur on your system
during assembly. It can clearly indicate whether there is a component issue or an installed issue by the 8 LEDs on the front
panel of Dr. LED. This helps you quickly self-diagnostic your system status. If you want to by Dr. LED, please contact the local
distributor or reseller. You also can link to AOpen official website: www.aopen.com.tw
Pin 1
Dr. LED Connecto
1 2
3.3V
NC
GND
5 6
by Internet to purchase it.
GPO12
GPO14
GPO14-
55
Page 56
AAXX44BBSS PPrroo // AAXX44BBSS--VV
Dr. LED is a CD disc storage box with 8 LEDs on its front panel, the size of Dr. LED is exactly the same as 5.25 in floppy drive,
so that it can be mount into normal 5.25 in drive bay of any housing.
01234567
PCI MemoryVideo CPUAudioHDDKB Boot O.K.
OOnnlliinnee MMaannuuaall
56
Page 57
AAXX44BBSS PPrroo // AAXX44BBSS--VV
The total 8 LEDs light up alternatively if the system fails in one of eight stages. Once the LED7 (latest LED) is lit, this indicates
that the system has completed its boot-up procedure.
The 8 LEDs indicate the following messages when lit:
LED 0 - Indicates that the CPU may have been installed incorrectly or is damaged.
LED 1 - Indicates that the memory may have been installed incorrectly or is damaged.
LED 2 - Indicates that the AGP may have been installed incorrectly or is damaged.
LED 3 - Indicates that the PCI card may have been installed incorrectly or is damaged.
LED 4 - Indicates that the floppy disk drive may have been installed incorrectly or is damaged.
LED 5 - Indicates that the HDD may have been installed incorrectly or is damaged.
LED 6 - Indicates that the keyboard may have been installed incorrectly or is damaged.
LED 7 - Indicates that the system is OK.
Note: During POST (power on self test), the Debug LED will light on
sequentially from LED0 to LED7 until the system boots O.K
OOnnlliinnee MMaannuuaall
57
Page 58
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
DDrr.. VVooiiccee CCoonnnneeccttoorr ((AAXX44BBSS PPrroo OOnnllyy))
The Dr. Voice is a great feature of AX4BS Pro. It can let you easily to know what kind of problem occurred. It can clearly “tell”
whether there is a component issue or an installed issue, such as CPU, memory module, VGA, PCI add-on card, FDD, HDD or
keyboard by voice. The Dr. Voice provides four kinds of language version, English, German, Japanese and Chinese for
choosing. You can select preferred language version by JP15 & JP16.
JP15
1
English
Pin 1
JP16
Chinese
GermanJapanese
58
Page 59
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
GGPPOO ((GGeenneerraall PPuurrppoossee OOuuttppuutt)) CCoonnnneeccttoorr
GPO (General Purpose Output) is an advanced specification developed by AOpen for power users to define the further
function by oneself. For example, you can design a daughter board to provide additional capabilities, such as an alarm, a buzzer,
a timekeeper, etc.
59
Page 60
AAXX44BBSS PPrroo // AAXX44BBSS--VV
A
OOnnlliinnee MMaannuuaall
Auto Switch
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
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
and a special circuit that allows you to save your current CPU and CMOS Setup
ATX Stand-by Power Battery
(Real Time Clock)
00:00:00
60
Page 61
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 guarantee 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
61
Page 62
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
Fan
CPU
to warn the user.
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 goes wrong, there will
be an alarm through the AOpen Hardware Monitoring Utility
Power
62
Page 63
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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
63
Page 64
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
LLooww EESSRR CCaappaacciittoorr
The quality of low ESR capacitor (Low Equivalent Series Resistance) during high frequency operation is very important for
stability of CPU power. The location of where to put these capacitors is another know-how that requires experience and detail
calculation.
64
Page 65
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
LLaayyoouutt ((FFrreeqquueennccyy IIssoollaattiioonn WWaallll))
Note: This diagram is for example only; it may not be
exactly the same as the motherboard you purchased.
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
12
Sec)
65
Page 66
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
PPuurree AAlluummiinnuumm HHeeaattssiinnkk
CCooooll ddoowwnn CCPPUU aanndd CChhiippsseett iiss iimmppoorrttaanntt ffoorr ssyysstteemm rreelliiaabbiilliittyy.. AAlluummiinnuumm hheeaatt ssiinnkk pprroovviiddeess bbeetttteerr hheeaatt ccoonnssuummppttiioonn eessppeecciiaallllyy
wwhheenn yyoouu aarree ttrryyiinngg ttoo oovveerr cclloocckkiinngg tthhee CCPPUU..
66
Page 67
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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.
67
Page 68
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
AAuuttoo--rruunn MMeennuu ffrroomm BBoonnuuss CCDD DDiisscc
You can use the autorun menu of Bonus CD disc to choose the utility and driver you need to install. Select the model of your
motherboard.
68
Page 69
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
IInnssttaalllliinngg CChhiippsseett SSooffttwwaarree IInnssttaallllaattiioonn UUttiilliittyy
Windows 95/98 cannot recognize this chipset, because it was released prior to the Intel 845 chipset. You can install the Intel
Chipset Software Installation Utility from the Bonus Pack CD disc auto-run menu to eliminate the “?” marks.
69
Page 70
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
IInnssttaalllliinngg UUllttrraa AATTAA//110000 IIDDEE DDrriivveerr
It is necessary to install Bus Master IDE driver to support ATA/100 hard disk. If you need this driver, you can find it in the AOpen
Bonus Pack CD disc.
Note: Installing this ATA/100 IDE
driver may cause Suspend to
Hard Drive fa
ilure.
70
Page 71
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
IInnssttaalllliinngg OOnnbbooaarrdd SSoouunndd DDrriivveerr
This motherboard comes with an AD1885 AC97 CODEC. You can find the audio driver from the Bonus Pack CD disc autorun
menu.
71
Page 72
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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.
72
Page 73
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
AACCPPII SSuussppeenndd ttoo HHaarrdd DDrriivvee
ACPI Suspend to Hard Drive is basically controlled by Windows operation system. It saves 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
Save into
Restore within
seconds
Disk
Hard
Disk
73
Page 74
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 assign the whole disk to your Win 98 system (FAT 16 or FAT 32), please run "aozvhdd /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
provide unformatted an empty partition.
4. Reboot system.
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.
74
Page 75
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 BIOS" and
remove "Plug and Play BIOS")
3. Reboot system.
4. Clean boot into DOS and run "AOZVHDD.EXE /C /File"
Changing from ACPI to APM
1. Run "Regedit.exe"
a. Go through the following path
75
Page 76
AAXX44BBSS PPrroo // AAXX44BBSS--VV
A
HKEY_LOCAL_MACHINE
SOFTWARE
MICROSOFT
WINDOWS
CURRENT VERSION
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 system.
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
DETECT
ACPI OPTION
OOnnlliinnee MMaannuuaall
76
Page 77
AAXX44BBSS PPrroo // AAXX44BBSS--VV
o
ACCPPII SSuussppeenndd ttoo RRAAMM ((SSTTRR))
A
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:
OOnnlliinnee MMaannuuaall
When power-on next time:
System Image & Status
System Image & Status
System Image & Status
System Image & Status
in the DRAM
in the DRAM
in the DRAM
in the DRAM
System Image & Status
System Image & Status
in the DRAM
in the DRAM
Backup by 3.3V
Power
Power back to
Other System
Devices
Other System
Devices
Power loss
Power back to
w
rk
77
Page 78
AAXX44BBSS PPrroo // AAXX44BBSS--VV
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 Intel
®
Chipset Software Installation Utility must have been installed properly.
Procedures
1. Changed the following 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.
OOnnlliinnee MMaannuuaall
78
Page 79
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
AAWWAARRDD BBIIOOSS
System parameters can be modified by going into BIOS Setup menu, this menu allows you to configure the system parameters
and save the configuration into the 128 bytes CMOS area, (normally in the RTC chip or in the main chipset).
The AwardBIOS™ that installed in the Flash ROM
BIOS provides critical low-level support for standard devices such as hard disk drives, serial and parallel ports.
Most BIOS setting of AX4BS Pro / AX4BS-V 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 configuring your system using setup.
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.
79
Page 80
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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.
80
Page 81
AAXX44BBSS PPrroo // AAXX44BBSS--VV
g
OOnnlliinnee MMaannuuaall
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.
F6 Load fail-save setting value from CMOS.
F7 Load turbo setting value from CMOS.
F10 Save changed setting and exit setup program.
Note: 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
settin
.
81
Page 82
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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.
Del
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.
82
Page 83
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
BBIIOOSS UUppggrraaddee
By flashing your motherboard, you agree to accept the possibility of BIOS flash failure. If your 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.
83
Page 84
AAXX44BBSS PPrroo // AAXX44BBSS--VV
Below are the steps for easy flashing procedures: (applies for Award BIOS ONLY)
1. Download new BIOS upgrade zip
For example, AX4BSP102.ZIP.
2. Run shareware PKUNZIP (http://www.pkware.com/
binary BIOS file and the flash utility.
Or Winzip (http://www.winzip.com/
3. Save the unzipped file into a bootable floppy disk.
For example, AX4BSP102.BIN & AX4BSP102.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:> AX4BSP102 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
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!
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.
OOnnlliinnee MMaannuuaall
84
Page 85
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 400MHz CPU bus clock. But it comes with clock generator of
248MHz when we design it to accommodate with future CPU bus clock. Our lab test results showed that 120MHz is achievable
when proper setting and qualified components were presented. Not only that, the CPU clock ratio can be up to 24x that supports
almost all of Pentium
feel appropriate for this motherboard is 120MHz bus clock..
But not guarantee. ☺
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.
®
4 CPUs in the future and provides flexibility for overclockers. For your reference, the configuration we
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.
85
Page 86
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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
86
Page 87
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 more 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 AGP 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
register interface. ACPI defines ATX momentary soft
87
Page 88
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 useful utilities.
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 specification
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.
88
Page 89
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
AATTAA//110000
ATA/100 is a new IDE specification under developing. ATA/100 uses both rising edge and falling edge as ATA/6 6 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 cable, the same as ATA/66.
BBIIOOSS ((BBaassiicc IInnppuutt//OOuuttppuutt SSyysstteemm))
BIOS is a set of assembly routine/program that reside in EPROM or Flash ROM. BIOS controls Input/output devices and other
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.
89
Page 90
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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, Value 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.
90
Page 91
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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.
91
Page 92
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 also 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.
92
Page 93
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
FFSSBB ((FFrroonntt SSiiddee BBuuss)) CClloocckk
FSB Clock means CPU external bus clock.
CPU internal clock = CPU FSB Clock x CPU Clock Ratio
2
2
I
I
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.
93
Page 94
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 bit will be adjusted to have even count "1" for each byte. When next time, if memory is read with odd number of "1", the
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.
94
Page 95
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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.
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 Windows 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.
95
Page 96
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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.
RRDDRRAAMM ((RRaammbbuuss DDRRAAMM))
Rambus is a memory technology that uses large burst mode data transfer. Theoretically, the data transfer should be high than
. RDRAM is cascaded in channel operation. For Intel 820, only one RDRAM channel is supported, 16-bit data per
SDRAM
channel, and this channel may have maximum 32 RDRAM devices, no matter how many RIMM
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
and operates at 3.3V. AOpen is the first company to support dual-SDRAM DIMMs onboard (AP5V), from Q1 1996
sockets.
to use burst mode transfer. SDRAM comes in 64-bit
96
Page 97
AAXX44BBSS PPrroo // AAXX44BBSS--VV
2
2
SShhaaddooww E
A memory space in Flash-ROM to simulate E2PROM operation, AOpen motherboard uses Shadow E2PROM for jumper-less and
battery-less design
E
PPRROOMM
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. SPD stores memory module information such as DRAM
timing and chip parameters. SPD can be used by BIOS
OOnnlliinnee MMaannuuaall
DRAM and supports 32-bit data. SIMM had been phased out on
to decide best timing for this DIMM or RIMM.
97
Page 98
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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 Memory Access (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 same 40-pin IDE interface cable as PIO and DMA.
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 eliminated.
interface. Ultra DMA was
98
Page 99
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
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
It is a compressed file format that can reduce the 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.
99
Page 100
AAXX44BBSS PPrroo // AAXX44BBSS--VV
OOnnlliinnee MMaannuuaall
TTrroouubblleesshhoooottiinngg
If you encounter any trouble to boot you system, follow the procedures accordingly to resolve the problem.
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 printer.
Make sure if all jumper settings are correct.
Clear CMOS
Start
Next
100
Loading...