AX4BS Pro / AX4BS-V ........................................................................................................................ 1
What’s in this manual ...................................................................................................................................................... 2
You Must Notice ..............................................................................................................................................................9
Before You Start............................................................................................................................................................ 10
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
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CPU and Housing Fan Connector (with H/W Monitoring) ..............................................................................................31
Front Panel Connector .................................................................................................................................................. 34
ATX Power Connector...................................................................................................................................................35
AC Power Auto Recovery .............................................................................................................................................. 36
IDE and Floppy Connector ............................................................................................................................................ 39
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
CNR (Communication and Network Riser) Expansion Slot............................................................................................ 47
PC99 Color Coded Back Panel ..................................................................................................................................... 48
Support 2nd USB Port .................................................................................................................................................... 49
CD Audio Connector ..................................................................................................................................................... 51
Front Audio Connector ..................................................................................................................................................54
Dr. LED Connector........................................................................................................................................................ 55
Dr. Voice Connector (AX4BS Pro Only)......................................................................................................................... 58
Battery-less and Long Life Design ................................................................................................................................ 60
Pure Aluminum Heatsink ............................................................................................................................................... 66
Driver and Utility ......................................................................................................................... 67
Auto-run Menu from Bonus CD Disc ............................................................................................................................. 68
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
VGA Card & Hard Disk..................................................................................................................................................86
Glossar y ....................................................................................................................................... 87
AMR (Audio/Modem Riser)............................................................................................................................................ 88
AOpen Bonus Pack CD ................................................................................................................................................. 88
APM (Advanced Power Management)........................................................................................................................... 88
ATA (AT Attachment) .....................................................................................................................................................88
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
ECC (Error Checking and Correction) ........................................................................................................................... 91
EDO (Extended Data Output) Memory .......................................................................................................................... 91
EV6 Bus ........................................................................................................................................................................ 92
FCC DoC (Declaration of Conformity) ...........................................................................................................................92
Flash ROM .................................................................................................................................................................... 92
FSB (Front Side Bus) Clock ..........................................................................................................................................93
Parity Bit ....................................................................................................................................................................... 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
SIMM (Single In Line Memory Module) ......................................................................................................................... 97
SPD (Serial Presence Detect)....................................................................................................................................... 97
USB (Universal Serial Bus) ........................................................................................................................................... 98
ZIP file........................................................................................................................................................................... 99
How to Contact Us ....................................................................................................................108
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Adobe, the Adobe logo, Acrobat is trademarks of Adobe Systems Incorporated.
AMD, the AMD logo, Athlon and Duron are trademarks of Advanced Micro Devices, Inc.
Intel, the Intel logo, Intel Celeron, Pentium II, Pentium III are trademarks of Intel Corporation.
Microsoft, Windows, and Windows logo are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
All product and brand names used on this manual are used for identification purposes only and may be the registered
trademarks of their respective owners.
All of the specifications and information contained in this manual are subject to change without notice. AOpen reserves the right
to revise this publication and to make reasonable changes. AOpen assumes no responsibility for any errors or inaccuracies that
may appear in this manual, including the products and software described in it.
This documentation is protected by copyright law. All rights are reserved.
No part of this document may be used or reproduced in any form or by any means, or stored in a database or retrieval
system without prior written permission from AOpen Corporation.
Copyright
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.
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You can clear CMOS to restore system default setting. To clear the CMOS, follow the procedure below.
1. Turn off the system and unplug the AC power.
2. Remove ATX power cable from connector PWR2.
3. Locate JP14 and short pins 2-3 for a few seconds.
4. Return JP14 to its normal setting by shorting 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…
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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
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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
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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.
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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.
.
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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