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AX4GE / AX4GE-N
DOC. NO.: AX4GEN-OL-E0208A
a
Overview
Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
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AX4GE / AX4GE-N ........................................................................................................................................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 “User Upgrade Optional” and “Manufacture Upgrade Optional”… ................................................................................. 20
JP14 Clear CMOS Data.......................................................................................................................................................... 21
CPU Installation ...................................................................................................................................................................... 22
CPU Jumper-less Design........................................................................................................................................................ 25
AOpen “Watch Dog Timer”...................................................................................................................................................... 26
Full-range Auto-detect CPU Core Voltage............................................................................................................................... 27
CPU and System Fan Connector (with H/W Monitoring) ......................................................................................................... 29
DIMM Sockets ........................................................................................................................................................................ 30
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DDR 266(PC2100) and DDR 333(PC2700) ............................................................................................................................ 32
Front Panel Connector............................................................................................................................................................ 33
ATX Power Connector............................................................................................................................................................. 34
AC Power Auto Recovery........................................................................................................................................................ 34
STBY LED (Standby LED) ...................................................................................................................................................... 35
IDE and Floppy Connector...................................................................................................................................................... 36
IrDA Connector....................................................................................................................................................................... 38
AGP (Accelerated Graphic Port) Expansion Slot..................................................................................................................... 39
AGP Protection Technology and AGP LED.............................................................................................................................. 40
WOL (Wake on LAN) .............................................................................................................................................................. 41
WOM (Zero Voltage Wake on Modem) Connector .................................................................................................................. 43
WOM by External BOX Modem............................................................................................................................................... 44
WOM by Internal Modem Card................................................................................................................................................ 45
CNR (Communication and Network Riser) Expansion Slot...................................................................................................... 46
Support 10/100 Mbps LAN onboard (For AX4GE-N Only) ....................................................................................................... 47
JP28 Keyboard/Mouse Wake-up Jumper ................................................................................................................................ 48
PC99 Color Coded Back Panel ............................................................................................................................................... 49
Support 2nd USB 2.0 Ports ...................................................................................................................................................... 50
Case Open Connector ............................................................................................................................................................ 51
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CD Audio Connector............................................................................................................................................................... 52
Modem Audio Connector ........................................................................................................................................................ 53
COM2 Connector.................................................................................................................................................................... 54
Front Audio Connector............................................................................................................................................................ 55
S/PDIF (Sony/Philips Digital Interface) Connector................................................................................................................... 56
Super 5.1 Channel Audio Effect .............................................................................................................................................. 57
Dr. LED Connector.................................................................................................................................................................. 58
Battery-less and Long Life Design .......................................................................................................................................... 59
Over-current Protection........................................................................................................................................................... 60
Hardware Monitoring............................................................................................................................................................... 61
Resetable Fuse....................................................................................................................................................................... 62
Low ESR Capacitor................................................................................................................................................................. 63
Layout (Frequency Isolation Wall) ........................................................................................................................................... 65
Enlarged Aluminum Heatsink.................................................................................................................................................. 66
Vivid BIOS technology ............................................................................................................................................................ 67
Driver and Utility.................................................................................................................................... 68
Auto-run Menu from Bonus CD............................................................................................................................................... 69
Installing Intel® Chipset Software Installation Utility ................................................................................................................ 70
Installing Intel IAA Driver......................................................................................................................................................... 71
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Installing Intel Extreme Graphic Driver .................................................................................................................................... 72
Installing LAN Driver (For AX4GE-N Only) .............................................................................................................................. 73
Installing Onboard Sound Driver ............................................................................................................................................. 74
Installing USB2.0 Driver.......................................................................................................................................................... 75
AOConfig Utility ...................................................................................................................................................................... 78
Installing Hardware Monitoring Utility ...................................................................................................................................... 80
ACPI Suspend to Hard Drive .................................................................................................................................................. 81
ACPI Suspend to RAM (STR) ................................................................................................................................................. 85
Phoenix-AWARD BIOS ............................................................................................................................87
About BIOS Function Description… ........................................................................................................................................ 88
How To Use Phoenix-Award™ BIOS Setup Program .............................................................................................................. 89
How To Enter BIOS Setup....................................................................................................................................................... 91
BIOS Upgrade under Windows environment ........................................................................................................................... 92
Overclocking .......................................................................................................................................... 94
VGA Card & Hard Disk............................................................................................................................................................ 95
Glossary .................................................................................................................................................96
AC97 ...................................................................................................................................................................................... 96
ACPI (Advanced Configuration & Power Interface) ................................................................................................................. 96
AGP (Accelerated Graphic Port) ............................................................................................................................................. 96
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AMR (Audio/Modem Riser) ..................................................................................................................................................... 97
AOpen Bonus Pack CD .......................................................................................................................................................... 97
APM (Advanced Power Management) .................................................................................................................................... 97
ATA (AT Attachment)............................................................................................................................................................... 97
ATA/66.................................................................................................................................................................................... 97
ATA/100.................................................................................................................................................................................. 98
ATA/133.................................................................................................................................................................................. 98
BIOS (Basic Input/Output System).......................................................................................................................................... 98
Bus Master IDE (DMA mode).................................................................................................................................................. 98
CNR (Communication and Networking Riser) ......................................................................................................................... 99
CODEC (Coding and Decoding) ............................................................................................................................................. 99
DDR (Double Data Rated) SDRAM......................................................................................................................................... 99
DIMM (Dual In Line Memory Module)...................................................................................................................................... 99
DMA (Direct Memory Access) ............................................................................................................................................... 100
ECC (Error Checking and Correction)................................................................................................................................... 100
EDO (Extended Data Output) Memory .................................................................................................................................. 100
EEPROM (Electronic Erasable Programmable ROM) ........................................................................................................... 100
EPROM (Erasable Programmable ROM).............................................................................................................................. 100
EV6 Bus................................................................................................................................................................................ 101
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FCC DoC (Declaration of Conformity) ................................................................................................................................... 101
FC-PGA (Flip Chip-Pin Grid Array)........................................................................................................................................ 101
Flash ROM ........................................................................................................................................................................... 101
FSB (Front Side Bus) Clock.................................................................................................................................................. 102
I2C Bus ................................................................................................................................................................................. 102
IEEE 1394 ............................................................................................................................................................................ 102
Parity Bit............................................................................................................................................................................... 103
PBSRAM (Pipelined Burst SRAM) ........................................................................................................................................ 103
PC-100 DIMM....................................................................................................................................................................... 103
PC-133 DIMM....................................................................................................................................................................... 103
PC-1600, PC-2100 or PC-2700 DDR DRAM......................................................................................................................... 104
PCI (Peripheral Component Interface) Bus ........................................................................................................................... 104
PDF Format.......................................................................................................................................................................... 104
PnP (Plug and Play).............................................................................................................................................................. 104
POST (Power-On Self Test) .................................................................................................................................................. 105
RDRAM (Rambus DRAM)..................................................................................................................................................... 105
RIMM (Rambus Inline Memory Module)................................................................................................................................ 105
SDRAM (Synchronous DRAM) ............................................................................................................................................. 105
Shadow E2PROM ................................................................................................................................................................. 105
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SIMM (Single In Line Memory Module) ................................................................................................................................. 106
SMBus (System Management Bus) ...................................................................................................................................... 106
SPD (Serial Presence Detect)............................................................................................................................................... 106
Ultra DMA............................................................................................................................................................................. 107
USB (Universal Serial Bus)................................................................................................................................................... 107
USB2.0 (Universal Serial Bus).............................................................................................................................................. 107
VCM (Virtual Channel Memory) ............................................................................................................................................ 108
ZIP file .................................................................................................................................................................................. 108
Troubleshooting ...................................................................................................................................109
Technical Support ................................................................................................................................113
Product Registration............................................................................................................................ 116
How to Contact Us............................................................................................................................... 117
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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 and Pentium 4 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
©
1996-2002, AOpen Inc. All Rights Reserved.
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BBeeffoorree YYoouu SSttaarrtt
This Online Manual will introduce to the user how this product is installed. All useful information will be described in later chapters. Please
keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved in PDF format
recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD
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
or you can get free download from Adobe web
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OOvveerrvviieeww
Thank you for choosing AOpen AX4GE / AX4GE-N motherboard. AX4GE / AX4GE-N is Intel® Socket 478 motherboard (M/B) based on the
ATX form factor featuring the Intel 845GE chipsets
®
Intel
Socket 478 Pentium® 4 (Willamette / Northwood) and 400/533 MHz Front Side Bus (FSB) clock. In the AGP performance, it has one
AGP slot and supports AGP 4X mode and pipelined spilt-transaction long burst transfer up to 1056MB/sec. According to different
customer’s requirements, this motherboard supports DDR200 (PC1600), DDR266 (PC2100) SDRAM and DDR333 (PC2700) SDRAM up to
2GB maximum. The onboard IDE controller supports Ultra DMA
6 USB2.0 ports give you the best use of all USB devices. Besides, AX4GE / AX4GE-N has an AC97
high performance and magic surround stereo sound to let people enjoy working with it. Now, let’s enjoy all features from AOpen AX4GE /
AX4GE-N motherboard.
. As high performance chipset built in the M/B, AX4GE / AX4GE-N motherboard support
33/66/100 mode and there are 6 PCI slots provided on this board. A total of
CODEC chipset onboard providing
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CPU
Supports Intel® Socket 478 Pentium® 4 (Willamette / Northwood) 1.4GHz~2.8GHz+ with 400/533MHz Front Side Bus (FSB) designed for
Socket 478 technology.
Chipset
The 845GE chipset contains two core components designed for the desktop platform: the 845GE Graphics Memory Controller Hub (GMCH),
and the Intel I/O Controller Hub 4 (ICH4). These components are interconnected via an Intel proprietary interface called Hub Interface. The
Hub Interface is designed into the 845GE chipset to provide an efficient, high bandwidth communication channel between the GMCH and
the ICH4. The GMCH component provides the processor interface, system memory interface, Hub interface, AGP interface, and an
integrated graphics device with analog and digital display ports. The ICH4 integrates a Universal Serial Bus 2.0 controller, Ultra ATA/100
Controller, Low Pin Count interface, Firmware Hub Flash BIOS interface controller, PCI interface controller, integrated LAN, AC’97 digital
controller, and a Hub Interface for communication with the GMCH.
Expansion Slots
Including six 32-bit/33MHz PCI, one AGP 1X/2X/4X slots. The PCI local bus throughput can be up to 132MB/s. The Accelerated Graphics
Port (AGP) specification provides a new level of video display sophistication and speed. The AGP video cards support data transfer rate up
to 1056MB/s. AX4GE / AX4GE-N motherboard includes one AGP expansion slot for a bus mastering AGP graphic card. For AD and SBA
signaling, AX4GE / AX4GE-N motherboard can support 4X mode. Of six PCI slots provided, all of them are master PCI slots with arbitration
and decoding for all integrated functions and LPC bus.
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Memory
Provides three 184-pin DDR SDRAM DIMM sockets that support up to 2GB of PC2700(DDR333), PC2100(DDR266) and PC1600(DDR200)
compliant SDRAM (Synchronous Dynamic Random Access Memory).
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you to adjust CPU FSB frequency from
100~248MHz by 1MHz stepping adjustment, and helps your system get maximum performance.
LAN Port (For AX4GE-N Only)
On the strength of Intel ICH4 on board, it provides 10/100 Mbps Ethernet for office and home use.
Ultra DMA 33/66/100 Bus Mater IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that support four IDE devices in two channels, supports Ultra
DMA 33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5, and supports Enhanced IDE devices.
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On-board AC’97 Sound
AX4GE / AX4GE-N uses RealTek AC97 sound chip. This on-board audio includes a complete audio recording and playback system.
Six USB2.0 Ports
Provides two ports on the back panel, two USB connectors, providing a total of six USB2.0 interface devices such as mouse, keyboard,
modem, scanner, etc.
S/PDIF Connectors
S/PDIF (Sony/Philips Digital Interface) is the newest audio transfer file format, which provides impressive quality through optical fiber and
allows you to enjoy digital audio instead of analog audio.
Power Management/Plug and Play
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
user-friendlier.
, which helps save users from configuration problems, thus making the system much
Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor module.
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Enhanced ACPI
Fully implement the ACPI standard for Windows® 98/ME/2000 series compatibility, and supports Soft-Off, STR (Suspend to RAM, S3), STD
(Suspend to Disk, S4) features.
Super Multi-I/O
Provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART can also be directed
from COM1 to the Infrared Module for the wireless connections.
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QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree
This page gives you a quick procedure on how to install your system. Follow each step accordingly.
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
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Front Audio Connecto
MODEM-CN Connecto
AC’97 CODEC
S/PDIF Connecto
CD-IN Connecto
CNR Connecto
32-bit PCI Expansion Slot x6
WOL Connecto
COM2 Connector
Dr. LED Connector
SYSFAN3 Connecto
JP28 Keyboard/Mouse Wakeup
JP14 CMOS Clear Jumpe
ATA66/100 IDE Connector x2
IrDA Connecto
Enable/Disable Jumpe
Case Open Connecto
USB2.0 Connecto
Front Panel Connecto
Motherboard Map
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PC99 Colored Back Panel
Resetable Fuse
4-pin 12V. ATX Power Connector
Low ESR Capacitors
SYSFAN2 Connector
GP 4x Expansion Slot
478-pin CPU socket (Willamette/
Northwood) with Voltage and
Frequency Auto-detection that
supports Intel
1.4~2.8GHz+ CPU
Intel 845GE Chipset
CPUFAN1 connecto
184-pin DIMMx3 supports
PC1600/2100/2700 DDR
SDRAM maximum up to 2GB
TX Power Connector
®
Pentium® 4
FDD Connector
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Socket 478
Intel Pentium 4
CPU(Willamett e
/Northwood)
AGP 4X Slot
PC-1600/2100/2700
SDRAM Up to 2GB
DIMM S ocke t x3
533MHz System
Bus
LAN connect Component
Floppy Disk Drive x2
Intel 845GE
USB Port x6
PCI Bus
USB Port
USB Port
USB Port
32-bit PCI Slot x6
ATA 66/100
Primary
Channel
Secondary
Channel
ICH4
Winbond
W83627
HF
RealTek
AC97
CODEC
4Mbit Flash EEPROM
Parallel Port
Serial Port x2
IDE Drive x4
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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 observe the following precautions before you install a system component.
1. Do not remove a component from its protective packaging until you are ready to install it.
2. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a component. If
a wrist strap is not available, maintain contact with the system unit throughout any procedure requiring
ESD protection.
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AAbboouutt ““UUsseerr UUppggrraaddee OOppttiioonnaall”” aanndd ““MMaannuuffaaccttuurree UUppggrraaddee OOppttiioonnaall””……
When you read this online manual and start to assemble your computer system, you may notice that some of the functions are marked as
“User Upgrade Optional” or “Manufacture Upgrade Optional”. Although all of AOpen’s motherboards have included many amazing and
powerful features, sometimes not every user is familiar with these powerful features. As a result of this we define features that can be
upgraded by users as “User Upgrade Optional”. You can upgrade these functions by purchasing additional devices. As for functions that
cannot be upgraded by users, we define them as “Manufacture Upgrade Optional”. If need be, you can contact our local distributors or
resellers to purchase “Manufacture Upgrade Optional” components, and again you are also welcome to visit our official website at
english.aopen.com.tw
for detail information.
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You can clear CMOS to restore system default setting. To clear 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.
Clear CMOS
Normal
default
Pin 1
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 series CPU (Willamette / Northwood). Be careful of CPU orientation when you plug
it into CPU socket.
1. Pull up the CPU socket lever and
up to 90-degree angle.
2. Locate Pin 1 in the socket and look for mark on the CPU upper interface.
Match Pin 1 and cut edge, then insert the CPU into the socket.
Note: Those pictures are for example only; they may not look the same with the motherboard you purchased.
CPU socket
Lever
CPU pin 1 and
cut edge
CPU cut edge
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3. Press down the CPU socket lever and finish CPU
installation.
Note: This picture is for example only; it may not look the same with the motherboard you purchased.
CPU cut edge
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, you
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 dissipation. Please install the CPU Fan correctly as the
following pictures shown.
1. Gently put the CPU Fan down on the
retention module with clips aligning correctl
to the four corners.
2. Pressing down the four clips with force one by one
on the retention module.
Clip
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CPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency through the
BIOS setup
There will be no worry of wrong CPU voltage detection.
.
, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less designs are eliminated.
Intel® Socket 478
CPU VID signal
Power Regulator
(Automatically generates CPU voltage)
Pentium 4
CPU voltage
Clock
Generator
CPU Freq. Ratio
BIOS
Controlled
Circuit
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AAOOppeenn ““WWaattcchh DDoogg TTiimmeerr””
Then, BIOS will detect the CPU’s default frequency and POST again. With this special feature, you can easily overclock your system to get
a higher system performance without removing the system housing and save the hassle from setting the jumper to clear CMOS data when
system hangs.
AOpen
Watch Dog Timer
AOpen provides a special and useful feature on this motherboard for overclockers. When you power-on
the system, the BIOS will check last system POST
Timer” function immediately, and set the CPU FSB
BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will reset the system to reboot in five seconds.
Enable/Disable Signal from
BIOS
Countdown about
5 seconds if fails
in POST
Reset Signal
Clock Generator
status. If it succeeded, the BIOS will enable “Watch Dog
frequency according to user’s settings stored in the
BIOS
CPU ID Signal
CPU
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This function is dedicated to overclockers and supports auto-detect CPU Core Voltage from 1.10V to 1.85V. You don’t have to manually
adjust it. However, this motherboard can also automatically detects CPU VID signal and generates proper CPU core voltage.
SSeettttiinngg CCPPUU FFrreeqquueennccyy
BIOS Setup > Frequency/Voltage Control > CPU Clock Setting
This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no jumpers or switches are needed.
The default setting is "table select mode". You can adjust the FSB from "CPU Host/SDRAM/PCI Clock" for overclocking.
Core Frequency = CPU FSB Clock * CPU Ratio
PCI Clock = CPU FSB Clock / Clock Ratio
AGP Clock = PCI Clock x 2
CPU Ratio
CPU FSB (By BIOS table)
8x, 10x… 21x, 22x, 23x, 24x
100 and 133 MHz
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Northwood CPU
Pentium 4 1.6G 1600MHz 100MHz 400MHz 16x
Pentium 4 1.6G 1600MHz 133MHz 533MHz 12x
Pentium 4 1.7G 1700MHz 133MHz 533MHz 13x
Pentium 4 1.8G 1800MHz 100MHz 400MHz 18x
Pentium 4 2.0G 2000MHz 100MHz 400MHz 20x
Pentium 4 2.2G 2200MHz 100MHz 400MHz 22x
Pentium 4 2.26G 2260MHz 133MHz 533MHz 17x
Pentium 4 2.4G 2400MHz 100MHz 400MHz 24x
Pentium 4 2.4G 2400MHz 133MHz 533MHz 18x
Pentium 4 2.53G 2530MHz 133MHz 533MHz 19x
Pentium 4 2.66G 2660MHz 133MHz 533MHz 20x
Pentium 4 2.8G 2800MHz 133MHz 533MHz 21x
CPU Core
Frequency
FSB
Clock
System
Bus
Ratio
Willamette
CPU
Pentium 4 1.5G 1500MHz 100MHz 400MHz 15x
Pentium 4 1.6G 1600MHz 100MHz 400MHz 16x
Pentium 4 1.7G 1700MHz 100MHz 400MHz 17x
Pentium 4 1.8G 1800MHz 100MHz 400MHz 18x
Pentium 4 1.9G 1900MHz 100MHz 400MHz 19x
Pentium 4 2.0G 2000MHz 100MHz 400MHz 20x
CPU Core
Frequency
FSB
Clock
System
Bus
Celeron
CPU
1.7G 1700MHz 100MHz 400MHz 17x
1.8G 1800MHz 100MHz 400MHz 18x
CPU Core
Frequency
FSB
Clock
System
Bus
Ratio
Warning: Intel 845GE chipset supports maximum
400MHz (100MHz*4) / 533MHz (133MHz*4) system bus
and 66MHz AGP clock; higher clock setting may cause
serious system damage.
Note: Since the latest processor, Northwood, would
detect the clock ratio automatically, you may not be
able to adjust the clock ratio in BIOS manually.
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Ratio
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CCPPUU aanndd SSyysstteemm FFaann CCoonnnneeccttoorr ((wwiitthh HH//WW MMoonniittoorriinngg))
Plug in the CPU fan cable to the 3-pin CPUFAN1 connector. If you have chassis fan, you can also plug it on SYSFAN2 or SYSFAN3
(without H/W Monitoring) connector.
SYSFAN3 Connecto
SENSOR
FAN1Connector
SYSFAN2 Connector
CPUFAN1 Connector
29
GND
+12V
Note: Some CPU fans do not have
sensor pin, so that they cannot support
hardware monitoring function.
GND
+12V
SENSOR
GND
+12V
SENSOR
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DDIIMMMM SSoocckkeettss
This motherboard has three 184-pin DDR DIMM sockets that allow you to install PC1600 (DDR200), PC2100 (DDR266) memory or
PC2700
(DDR333) memory up to 2GB. Please note that when you install PC1600 or PC2100 DDR SDRAM, you can install them fully into 3
sockets; however, when you install PC2700 DDR SDRAM, we suggest you to install DIMM1 and DIMM2 ONLY.
DIMM1
DIMM2
DIMM3
DIMM 1
DIMM 2
DIMM 3
PC2100/PC1600
DDR SDRAM
V V
V V
V
PC2700
DDR SDRAM
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HHooww ttoo IInnssttaallll MMeemmoorryy MMoodduulleess
Please follow the procedure as shown below to finish memory installation.
1. Make sure the DIMM module’s pin 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 down firmly until the DIMM module is securely in place.
3. Repeat step 2 to finish additional DIMM modules installation.
Pin 1
Ta b
Key
52 pins 40 pins
31
Pin 1
Note: The tabs of the DIMM slot
will close-up to hold the DIMM in
place when the DIMM touches the
slot’s bottom.
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DDDDRR 226666((PPCC22110000)) aanndd DDDDRR 333333((PPCC22770000))
DDR SDRAM utilizes the existing SDRAM infrastructure and technology while doubling the nominal bandwidth available to systems. To p u t
it in a simple way, DDR SDRAM is like data going along a two lane highway, while at the same time data in traditional SDRAM go along a
one way street. Therefore, it is a more advanced technology that provides a great overall improvement in system performance. DDR266
(PC2100) runs two times faster than the traditional PC133 SDRAM with the speed of Front Side Bus (FSB) up to 266MHz. (2x133=266).
And DDR333 (PC2700) is running at 333MHz FSB. Both PC2100 and PC2700 are a new naming standard for speed of DDR 266 and
DDR 333, representing their theoretical speeds of the RAM. The theoretical transfer rate of DDR 266 (PC2100) is 2.1GB/s and 2.7GB/s is
for DDR 333 (PC2700).
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FFrroonntt PPaanneell CCoonnnneeccttoorr
Pin1
Attach the power LED, Keylock, 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 connecto
from the housing front panel. Plug this connector to the soft-power switch connecto
marked SPWR.
Suspend Type ACPI LED
Power on Suspend (S1) or Suspend to RAM (S3) Flashing for every second
Suspend to Disk (S4) The LED will be turned off
IDE LED
Speaker
1
SPWR
CPI & PWR
LED
CPI LED (BLUE)
Reset
SPEAKER
NC
NC
+5V
IDE LED
IDE LED
+5V
+5V
GND
NC
1
SPWR
GND
ACPI LED GND
ACPILED
NC
ACPI_B
GND
RESET
GND
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AATTXX PPoowweerr CCoonnnneeccttoorr
This motherboard comes with a 20-pin and 4-pin ATX power connector. 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.
AACC PPoowweerr AAuuttoo RReeccoovveerryy
A traditional ATX system should remain at power off stage when AC power resumes from power failure. This design is inconvenient for a
network server or workstation, without an UPS, that needs to keep power-on. This motherboard implements an AC Power Auto Recovery
function to solve this problem.
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SSTTBBYY LLEEDD ((SSttaannddbbyy LLEEDD))
The STBY LED is AOpen’s considerate design that we aim at providing you a friendly system information. The STBY LED will light up when
power is provided to the motherboard. This is a convenient indication for you to check the system power status in many circumstances such
as power on/off, stand-by mode and RAM power status during Suspend to RAM mode
.
STBY LED
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IIDDEE aanndd FFllooppppyy CCoonnnneeccttoorr
Connect 34-pin floppy cable and 40-pin IDE cable to floppy connector FDD and IDE connector. Be careful of the pin1 orientation. Wrong
orientation may cause system damage.
Secondary
Slave (4th)
Secondary
Master (3rd)
Pin 1
FDD Connector
Pin 1
Primary
Slave (2nd)
ATA 66/100 IDE
Connector
IDE 2 (Secondary)
IDE 1 (Primary)
Primary
Master (1st)
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IDE1 is also known as the primary channel and IDE2 as the secondary channel. Each channel supports two IDE devices that make a total
of four devices. In order to work together, the two devices on each channel must be set differently to Master and Slave mode. Either one
can be the hard disk or the CDROM. The setting as master or slave mode depends on the jumper on your IDE device, so please refer to
your hard disk and CDROM manual accordingly.
Tip:
1. For better signal quality, it is recommended to set the far end side device to
master mode and follow the suggested sequence to install your new device.
Please refer to above diagram
2. To achieve the best performance of Ultra DMA 66/100 hard disks, a special
Warning: The specification of the IDE cable is a maximum of 46cm (18 inches);
make sure your cable does not exceed this length.
a
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IIrrDDAA CCoonnnneeccttoorr
The IrDA connector can be configured to support wireless infrared module, with this module and application software such as Laplink or
Windows 95 Direct Cable Connection, the user can transfer files to or from laptops, notebooks, PDA devices and printers. This connector
supports HPSIR (115.2Kbps, 2 meters) and ASK-IR (56Kbps).
Install the infrared module onto the IrDA connector and enable the infrared function from BIOS Setup, UART Mode, make sure to have the
correct orientation when you plug in the IrDA connector.
IIrrDDAA CCoonnnneeccttoorr
IR_R
GND
KE
IR_TX
+5V
NC
Pin 1
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AAGGPP ((AAcccceelleerraatteedd GGrraapphhiicc PPoorrtt)) EExxppaannssiioonn SSlloott
AX4GE / AX4GE-N provides an AGP 4x slot. The AGP 4x 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 4bytes x 2 = 528MB/s. AGP is now moving to AGP 4x mode, 66MHz x 4bytes x 4 = 1056MB/s.
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AAGGPP PPrrootteeccttiioonn TTeecchhnnoollooggyy aanndd AAGGPP LLEEDD
With the outstanding R&D ability of AOpen and its specially developed circuit, AX4GE / AX4GE-N implements a blend new technology to
protect your motherboard from being damaged by over-voltaging of AGP card. When AGP Protection Technology is implemented, this
motherboard will automatically detect the voltage of AGP card and prevent your chipsets from being burnt out. Please note that if you install
a AGP card with 3.3V, which is not supported by Intel 845GE, the AGP LED on the motherboard will light up to warn you the possible
damage of the exceeding voltage. You may contact your AGP card vendor for further support.
GP LED
Warning: It is strongly recommended not to
install a 3.3V AGP card, which is not
supported by Intel 845GE. When you do so,
the LED3 on the motherboard will light up to
warn you the possible damage.
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WWOOLL ((WWaakkee oonn LLAANN))
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.
WOL connector
LID
GND
+5VSB
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WOL Connector
(Motherboard Side)
Note: This picture is for example only; it may not exactly look the same with the motherboard you purchased.
WOL Connector
(Ethernet Card Side)
a
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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 WWOOMM ccoonnnneeccttoorr oonn tthhee mmootthheerrbbooaarrdd.
1
+5VSB
NC
RIGND
WOM Connector
Pin 1
.
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WWOOMM bbyy EExxtteerrnnaall BBOOXX MMooddeem
a
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.
Note: This picture is for example only; it may not look exactly the same as the motherboard you purchased.
.
Serial Port (Modem
Side)
Pin 1
Serial Port
(Motherboard Side)
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WWOOMM bbyy IInntteerrnnaall MMooddeemm CCaarrd
a
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.
Note: This picture is for example only; it may not look exactly the same as the motherboard you purchased.
.
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CCNNRR ((CCoommmmuunniiccaattiioonn aanndd NNeettwwoorrkk RRiisseerr)) EExxppaannssiioonn SSlloott
CNR is a riser card specification to replace the AMR (Audio/Modem Riser) that supports V.90 analog modem, multi-channel audio, and
phone-line based networking. Owing to CPU computing power getting stronger, the digital processing job can be implemented in main
chipset and share CPU power. The analogy conversion (CODEC
CNR card. This motherboard implements sound CODEC on board, but reserve CNR slot for the option of modem function. Note that you
can still use PCI modem card.
) circuit requires a different and separate circuit design, which is put on
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SSuuppppoorrtt 1100//110000 MMbbppss LLAANN oonnbbooaarrdd ((FFoorr AAXX44GGEE--NN OOnnllyy))
On the strength of Intel ICH4 on board, it provides 10/100M bps Ethernet for office and home use, the Ethernet RJ45 connector is located
on top of USB connectors. The green LED indicates the link mode, it lights when linking to network and blinking when transferring data. The
orange LED indicates the transfer mode, and it lights when data is transferring in 100Mbps mode. To enable or disable this function, you
may simply adjust it through BIOS.
Green/ACT
Orange/Speed
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JJPP2288 KKeeyybbooaarrdd//MMoouussee WWaakkee--uupp JJuummppeerr
This motherboard provides PS2 keyboard / mouse wake-up function. You can use JP28 to enable or disable this function, which could
resume your system from suspend mode with keyboard or mouse. The factory default setting is set to “Disable”(1-2), and you may enable
this function by setting the jumper to 2-3.
1
Disable
(Default)
1
Enable
Pin 1
JP28 KB/Mouse
Wake-up
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PPCC9999 CCoolloorr CCooddeedd BBaacckk PPaanneell
The onboard I/O devices are PS/2 Keyboard, PS/2 Mouse, RJ-45 LAN Connector, COM1, Printer, USB, AC97 sound and game ports. The
view angle of drawing shown here is from the back panel of the housing.
PS/2 Mouse
Connector
SPP/EPP/ECP
Parallel Port
RJ-45 LAN
MIDI/Game Port
Connector
(AX4GE-N Only)
PS/2 Keyboard
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.
RJ-45 LAN connector To connect Ethernet for home or office use.
VGA Connector: To connect with PC monitor.
Speaker Out: To External Speaker, Earphone or Amplifier.
Line-In: Comes from the signal sources, such as CD/Tape player.
MIC-In: From Microphone.
MIDI/Game Port: For 15-pin PC joystick, game pad or MIDI devices.
Connector
COM 1 Port
VGA Port
USB Ports
MIC-In
Line-In
Speaker Out
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d
nnd
1 2
2
UUSSBB 22..00 PPoorrttss
USBPWR0
USB_FP_P1-
USB_FP_P1+
GND
USB_FP_OC0
SSuuppppoorrtt 2
This motherboard provides six USB ports to connect USB devices such as mouse, keyboard, modem, printer, etc. There are two USB
connectors on the board for you to connect four USB devices and two other ports on the back panel. You can use proper cables to connect
USB devices from PC99 back panel or connect the front USB connector to the front panel of chassis.
Compared to traditional USB 1.0/1.1 with the speed of 12Mbps, USB 2.0 has a fancy speed up to 480Mbps which is 40 times faster than
the traditional one. Except for the speed increase, USB 2.0 supports old USB 1.0/1.1 software and peripherals, offering impressive and
even better compatibility to customers. On this motherboard, all six ports support USB 2.0 function.
USBPWR0
USB_FP_P0-
USB_FP_P0+
GND
KEY
Pin1
Pin 1
USB2.0 Connector
a
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CCaassee OOppeenn CCoonnnneeccttoorr
The “CASE OPEN” header provides chassis intrusion-monitoring function. To make this function works, you have to enable it in the system
BIOS, connect this header to a sensor somewhere on the chassis. So, whenever the sensor is triggered by lights or by the opening of the
chassis, the system will beep to inform you. Please be informed that this useful function only applies to advanced chassis, you may
purchase an extra sensor, attach it on your chassis, and make a good use of this function.
IInnttrruussiioonn SSeennssoorr
GND
Sensor
Pin 1
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CCDD AAuuddiioo CCoonnnneeccttoorr
This connector is used to connect CD Audio cable from CDROM or DVD drive to onboard sound.
CD-IN
R
GND
GND
L
Note: Though some of the latest versions of Windows
support “Digital Audio” through IDE bus. However, in
order to use Open Jukebox player, which is driven under
BIOS, it is a MUST to connect audio cable to CD-IN
connector on the motherboard.
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MMooddeemm AAuuddiioo CCoonnnneeccttoorr
This connector is used to connect Mono In/MIC Out cable from internal modem card to onboard sound circuit. The pin 1-2 is Mono In, and
the pin 3-4 is MIC Out. Please note that there is no standard for this kind of connector yet, only some internal modem cards implement this
connector.
MIC OUT
GND
GND
MONO IN
MMOODDEEMM--CCNN CCoonnnneeccttoorr
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CCOOMM22 CCoonnnneeccttoorr
This motherboard provides two serial ports. One of them is on back panel connector, and the other is on the left middle of board. With
proper cable, you can connect it to the back panel of chassis.
1 2
DCD#
SOUT
GND
RI#
RTS#
Pin 1
SIN
DTR#
DSR#
CTS#
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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. By the way, please remove the jumper cap from the Front Audio Connector before you connect the cable. Do not remove this
yellow jumper cap if your housing doesn’t have an audio port on the front panel.
FP_MIC
FP_VREF
PHONE_R
PHONE_L
1 2
GND
+5V
NC
NC
Note: Please remove the jumper cap from the front audio connector before you
connect the cable. Do not remove this yellow jumper cap if your housing doesn’t
have an audio
KEY
NC
9 10
Pin 1
ort on the front panel.
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SS//PPDDIIFF ((SSoonnyy//PPhhiilliippss DDiiggiittaall IInntteerrffaaccee)) CCoonnnneeccttoorr
S/PDIF (Sony/Philips Digital Interface) is a latest audio transfer file format that provides impressive quality through optical fiber and allows
you to enjoy digital audio instead of analog. Normally there are two S/PDIF outputs as shown, one for RCA connector, the most common
one used for consumer audio products, and the other for optical connector with a even better audio quality. Through a specific audio cable,
you can connect the S/PDIF connector to a S/PDIF audio module bearing S/PDIF digital output. However, you must have a S/PDIF
supported speaker with S/PDIF digital input to make the most of this function.
1
5
+5V
NC
SPDIFOUT
GND
SPDIFIN
S/PDIF
S/PDIF Module
(User Upgrade Optional)
Pin 1
S/PDIF
Connector
S/PDIF OUT (RCA)
S/PDIF IN (RCA
S/PDIF OUT (Optical)
S/PDIF IN (Optical)
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SSuuppeerr 55..11 CChhaannnneell AAuuddiioo EEffffeecctt
This motherboard comes with an ALC650 Codec which supports high quality of 5.1 Channel audio effect, bringing you a brand new audio
experience. On the strength of the innovative design of ALC650E, you're able to use standard line-jacks for surround audio output without
connecting any external module. To apply this function, you have to install the audio driver in the Bonus Pack CD as well as an audio
application supporting 5.1 Channel. Picture below represents the standard location of all speakers in 5.1 Channel sound track. Please
connect the plug of your front speakers to the green “Speaker out” port, rear speakers’ plug to the blue “Line in” port and both of the center
and subwoofer speakers to the red “MIC in” port.
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DDrr.. LLEEDD CCoonnnneeccttoorr
CCoonnnneeccttiinngg DDrr.. LLEEDD yyoouu ccaann eeaassiillyy ffiinndd tthhee ssyysstteemm pprroobblleemmss tthhaatt mmaayy ooccccuurr wwhhiillee aasssseemmbblliinngg.. IItt ccaann cclleeaarrllyy iinnddiiccaattee wwhheetthheerr tthhee pprroobblleemm
iiss ccaauusseedd ffrroomm ccoommppoonneennttss oorr iimmpprrooppeerr iinnssttaallllaattiioonn tthhrroouugghh tthhee 88 LLEEDD lliigghhttss ooff DDrr.. LLEEDD oonn tthhee ffrroonntt ppaanneell.. TThhaatt iiss ttoo ssaayy yyoouu ccaann ddiiaaggnnoossee
yyoouurr ssyysstteemm ssttaattuuss qquuiicckkllyy.
S2
S1
3.3V
.
2
1
Pin 1
S3
6
5
GND
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BBaatttteerryy--lleessss aanndd LLoonngg LLiiffee DDeessiiggnn
This Motherboard implements a Flash ROM and a special circuit that provide you no batter power consumption of current CPU and CMOS
Setup configurations. 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.
ATX Stand-by Power
Battery
RTC
00:00:00
CMOS
Auto Switch
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.
Flash ROM
(Real Time Clock)
Backup by EEPROM
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OOvveerr--ccuurrrreenntt PPrrootteeccttiioonn
The Over Current Protection is a popular implementation on ATX 3.3V/5V/12V switching power supply. However, the new generation CPU
uses different voltage with a regulator to transfer 12V to CPU voltage (for example, 2.0V), and thus makes 5V over current protection
useless. This motherboard is with switching regulator onboard supporting 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 and tried to prevent any human operating
mistake, certain risks might still happen when CPU, memory, HDD or add-on cards installed on this
motherboard is damaged due to component failure, human operating error or other unknown natural
reasons. AOpen cannot guarantee that the protection circuit will always work perfectly.
ATX
Switching
Power
Supply
3.3V (Protected by power supply)
5V (Protected by power supply)
12V (Protected by power supply)
Onboard
Power
Regulator
Over-Current
Protection
Circuit
CPU Core Voltage
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Fan
CPU
Fan Speed
AOpen H/W
Monitoring
Utility
CPU Temperature
CPU Voltage
System Voltage
Detection
Circuit
HHaarrddwwaarree MMoonniittoorriinngg
This motherboard implements a hardware monitoring system. As you turn on your system, this smart design will monitor your system’s
working voltage, fan status and CPU temperature. If any of those systems’ status goes wrong, there will be an alarm through the chassis
external speaker or buzzer of motherboard (if having this function and enabled) to warn the user.
Power
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RReesseettaabbllee FFuussee
Traditional motherboard uses fuses to prevent Keyboard and USB port from over-current or shortage. These fuses are soldered onboard
that when it is broken (function to protect motherboard), user cannot replace them and result in malfunction of motherboard.
With expensive Resetable Fuse, the motherboard can be resumed back to normal function even after the fuse had done its protection job.
Resettable
Fuse
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LLooww EESSRR CCaappaacciittoorr
The quality of low ESR capacitor (Low Equivalent Series Resistance) during high frequency operation is very important for the stability of
CPU power. The idea of where to put these capacitors is another know-how that requires experience and detail calculation.
Not only that, AX4GE / AX4GE-N implements 2200μF capacitors, which is much larger than normal capacitor (1000 & 1500μF) and it
provides better stability for CPU power.
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The power circuit of the CPU core voltage must be checked to ensure system stability for high speed CPUs (such as the new Pentium III, or
when overclocking). A typical CPU core voltage is 2.0V, so a good design should control voltage between 1.860V and 2.140V. That is, the
transient must be below 280mV. Below is a timing diagram captured by a Digital Storage Scope, it shows the voltage transient is only
143mv even when maximum 60A current is applied.
Note: This diagram for example only, it may not be exactly the same as the motherboard you purchased.
a
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LLaayyoouutt ((FFrreeqquueennccyy IIssoollaattiioonn WWaallll))
Note: This diagram for example only, it may not look exactly the same as the motherboard you
purchased.
For high frequency operation, especially when
overclocking, layout is the most important factor to make
sure both chipset and CPU are working in stable
condition. The layout of this motherboard implements
Open’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, we can 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 to
length (not necessarily as short as possible) so that clock
skew will be controlled within few a pico second (1/10
Sec)
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EEnnllaarrggeedd AAlluummiinnuumm HHeeaattssiinnkk
Cool down CPU and Chipset are important for system reliability. Enlarged aluminum heat sink provides better heat consumption especially
when you are trying to over-clock the CPU.
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VViivviidd BBIIOOSS tteecchhnnoollooggyy
Unlike earlier graphic POST screen which could occupy the whole screen and mask text information during POST, AOpen VividBIOS deals
with graphics and texts separately, and makes them running simultaneously during POST. With this innovative design, VividBios now brings
you a beautiful and sleek 256 colours screen without missing any important information shown on POST screen.
In addition, the limited space of BIOS ROM is another big issue. When all of the traditional BIOS can only show space-consuming and
uncompressed Bitmap, AOpen has considerately tuned the BIOS to next generation, to recognize the smaller-sized GIF format and even
dynamic-showing GIF animation.
Vivid BIOS shares the same fundamental technology with Open JukeBox CD Player, you may use the same EzSkin utility to change your
Vivid BIOS screen or to download your favourite Open JukeBox skin. If you see this little logo
the BIOS download page,
innovative feature!
http://english.aopen.com.tw/tech/download/skin, it is assured that your motherboard supports this
Have you been fed up with the conservative and immutable POST screen? Let’s rule out the tradition
idea that POST screen are stiff and frigid, and let AOpen show you the newly developed VividBIOS to
experience the lively vivid colourful POST screen!
shown beside your model name on
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DDrriivveerr aanndd UUttiilliittyy
There are motherboard drivers and utilities in AOpen Bonus CD. You don’t need to install all of them 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 install any drivers or utilities.
Please refer to your operation system’s installation guide.
Note: Please follow recommended procedure to
install Windows 2000
and Windows XP.
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AAuuttoo--rruunn MMeennuu ffrroomm BBoonnuuss CCDD
You can use the auto-run menu of Bonus CD. Choose the utility and driver and select model name.
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IInnssttaalllliinngg IInntteell®® CChhiippsseett SSooffttwwaarree IInnssttaallllaattiioonn UUttiilliittyy
Windows 95/98 cannot recognize this chipset, because they were released earlier than Intel 845GE chipset. You can install Intel INF
Update Utility from Bonus Pack CD auto-run menu to eliminate the “?” marks.
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IInnssttaalllliinngg IInntteell IIAAAA DDrriivveerr
You can install Intel IAA Driver to increase the performance of software applications and reduce PC boot times. You can find it in AOpen
Bonus Pack CD.
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IInnssttaalllliinngg IInntteell EExxttrreemmee GGrraapphhiicc DDrriivveerr
You can download Intel Extreme graphic driver from the Bonus Pack CD.
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IInnssttaalllliinngg LLAANN DDrriivveerr ((FFoorr AAXX44GGEE--NN OOnnllyy))
You can download LAN Driver from the Bonus Pack CD.
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IInnssttaalllliinngg OOnnbbooaarrdd SSoouunndd DDrriivveerr
This motherboard comes with AC97 CODEC. This audio driver supports Windows 98SE and upper Windows OS; you can find the audio
driver from the Bonus Pack CD auto-run menu.
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IInnssttaalllliinngg UUSSBB22..00 DDrriivveerr
* Windows 2000 Installation Guide
*************************************************
Installing Driver in Existing Windows 2000 System
*************************************************
After enabling the USB 2.0 controller and rebooting your system, Windows 2000 setup will show a "New Hardware Found" dialog box.
Under Windows 2000, "Universal Serial Bus (USB) Controller" will be displayed.
1. Choose "Search for a suitable driver for my device (Recommended)". from the list, and then press "Enter".
2. Choose "Specify a location." and then press "Next"
3. Insert the Bonus CD in CD-ROM.
4. Type "[CD-ROM]:\Driver\Intel\USB2.0\Win2000" in the text box that appears. Press " OK ".
5. Click on "Next." A message informing you that Windows has found "Intel PCI to USB Enhanced Host Controller A1" should appear.
6. Click on "Next," and then on "Finish."
************************************
Confirming Windows 2000 Installation
************************************
1. From Windows 2000, open the Control Panel from "My Computer" followed by the System icon.
2. Choose the "Hardware" tab, and then click the "Device Manager" tab.
3. Click the "+" in front of "Universal Serial Bus controllers". "Intel PCI to USB Enhanced Host Controller A1" should appear.
* Windows XP Installation Guide
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***********************************************
Installing Driver in Existing Windows XP System
***********************************************
After enabling the USB 2.0, Windows XP setup will show a "Found New Hardware" dialog box. Under Windows XP, "Universal Serial Bus
(USB) Controller" will be displayed.
1. Click on "Next," and from the generated list box, choose "Install from a list or special location (Advanced)", click "Next"
2. Click on "Next," and from the generated choices, choose "Include this location in the search:"
3. Insert the Bonus CD in CD-ROM.
4. Type "[CD-ROM]:\Driver\Intel\USB2.0\WinXP" in the text box that appears.
5. Click on "Next." A message informing you that Windows XP has found "Intel PCI to USB Enhanced Host Controller A1" should appear.
6. When the New Hardware Wizard has finished installing the USB driver, click on "Finish"
**********************************
Confirming Windows XP Installation
**********************************
1. Tools/Folder Options…/View. Change below item:
2. Enable "Display the full path in the title bat".
3. Enable "Show Hidden files and folders".
4. Disable "Hide extensions of known files types".
5. Disable "Hide protected operating system files (Recommended)".
6. Check USB driver version from My Computer, Local Disk C:, Show the content of this drive, Windows directory, Show the content of this
drive, System32 directory, Show the content of this drive, Drivers directory, Show the content of this drive, View, Details.
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1. USBEHCI.SYS - 3/20/2002.
2. USBPORT.SYS - 8/17/2001.
3. USBHUB.SYS - 8/17/2001.
So, new 3616 driver does not install complete.
[Install by manual]
1. Disable Windows File Protection (WFP)
1. Start button/run/Regedit.
2. Set HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable = 1
2. Copy all USB files from CD to HDD.
1. Copy all test drivers to %windir%\driver cache\i386.
2. Copy all test drivers to %windir%\system32\dllcache
You need to copy file to this directory first. Otherwise, Windows XP will replace file from this directory to system32\drivers.
3. Copy all test drivers to %windir%\system32\drivers.
3. Check USB driver version again.
1. USBEHCI.SYS - 3/20/2002.
2. USBPORT.SYS - 3/20/2001.
3. USBHUB.SYS - 3/20/2001.
Test USB20 HDD with restart for 10 times. The USB 20 HDD can detect any problem for all 10 times.
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AAOOCCoonnffiigg UUttiilliittyy
AOpen always dedicated to provide users a much friendly computer environment. We now bring you a comprehensive system detection
utility. AOConfig is a Windows based utility with user-friendly interface that allows users to obtain information of the operation system and
hardware such as motherboard, CPU, memory, PCI devices and IDE devices. The powerful utility also displays the version of BIOS and
firmware for your convenience of maintenance.
Moreover, AOConfig allows users to save information in *.BMP or *.TXT format which users may collect the system information in detail and
send them to AOpen directly for technical support or for further diagnose of system problems.
1. The system page shows the
detailed information of the
motherboard, operating
system, processor, and
BIOS version.
2. The PCI device page shows
the configurations of all PCI
devices installed in your
motherboard.
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3. This page presents the IDE
device information, such as
serial number, manufacturer,
firmware version, and capacity.
4. From this page, users can
obtain the technical support
information of AOpen. Moreover,
detailed information could be
saved in .bmp or .txt format.
NOTE:
AOConfig can be used under Windows 98SE/ME, NT4.0/2000, or even the latest Windows XP. Please also note that
AOConfig can only be operated in a system equipped with an AOpen motherboard. Before running AOConfig, all
applications must be closed.
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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 BIOS and utility software. No hardware installation is needed.
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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
Save into
Restore within
seconds
Hard
Disk
Hard
Disk
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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.
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Changing from APM to ACPI (Windows 98 only)
1. Run "Regedit.exe"
a. Go through the following path
HKEY_LOCAL_MACHINE
SOFTWARE
MICROSOFT
WINDOWS
CURRENT VERSION
DETECT
b. Select "ADD Binary" and name it as "ACPIOPTION".
c. Right click and select Modify, add "01" after "0000" to make it "0000 01".
d. Save changes.
2. Select "Add New Hardware" under Control Panel. Allow Windows 98 to detect new hardware. (It will find "ACPI BI OS " 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
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HKEY_LOCAL_MACHINE
SOFTWARE
MICROSOFT
WINDOWS
CURRENT VERSION
DETECT
ACPI OPTION
b. Right click and select "Modify, change "01" to "02" to make it "0000 02".
c. Save changes.
2. Select "Add New Hardware" under Control Panel. Allow Windows 98 to detect new hardware. (It will find "Plug and Play BIOS" and
remove "ACPI BIOS")
3. Reboot 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.
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AACCPPII SSuussppeenndd ttoo RRAAMM ((SSTTRR))
This motherboard supports ACPI Suspend to RAM function. With this function, you can resume your original work directly from DRAM
without going through the Windows 98 booting process and run your application again. Suspend to DRAM saves your current work in the
system memory, it is faster than Suspend to Hard Drive but requires power supplied to DRAM, while Suspend to Hard Drive requires no
power.
When go into Suspend:
When power-on next time:
System Image & Status in
the DRAM
System Image & Status in
the DRAM
Backup by 3.3V
Power
Power back to
Other System
Devices
Other System
Devices
Power loss
Power back to
w
rk
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To implement ACPI Suspend to DRAM, please follow the procedures as below:
System Requirement
An ACPI OS is required. Currently, except Windows 95 and Windows NT, all other Windows Systems support ACPI.
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.
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PPhhooeenniixx--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).
Phoenix-Award BIOS™ installed in the Flash ROM
provides critical low-level support for standard devices such as hard disk drives, serial and parallel ports.
Most BIOS settings of AX4GE / AX4GE-N have been optimized by AOpen’s R&D engineering team. But, the default setting of BIOS still
can’t fine-tune the chipset controlling entire system. Therefore, the rest of this chapter intends to guide you the process of configuring your
system setup.
To enter to BIOS setup menu
, press <Del> when POST (Power-On Self Test) screen is shown on your monitor.
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.
of the motherboard is a custom version of an industry standard BIOS. The BIOS
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AAbboouutt BBIIOOSS FFuunnccttiioonn DDeessccrriippttiioonn……
AOpen always dedicates to give user 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 appear at the right side of
screen. Therefore, you don’t need to read this manual while you change BIOS settings.
Menu Items Select Window Item Function Description Window
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HHooww TToo UUssee PPhhooeenniixx--AAwwaarrdd™™ BBIIOOSS SSeettuupp PPrrooggrraamm
Generally, you can use 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 values. You can also press <F1> key for help and press <Esc> key to quit Phoenix-Award™ BIOS
setup program. The following table provides details about how to use keyboard in the Phoenix-Award™ BIOS setup program. By the way,
all products of AOpen also provide a special function in BIOS setup; you can press <F3> key selecting you preferred menu language.
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.
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Key Description
F6 Load fail-save setting value from CMOS.
F7 Load turbo setting value from CMOS.
F10 Save changed setting and exit setup program.
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HHooww TToo EEnntteerr BBIIOOSS SSeettuupp
After you finish jumper settings and connect correct cables, power on and enter the BIOS Setup. Press <Del> during POST (Power-On Self
Te st ) and 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.
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BBIIOOSS UUppggrraaddee uunnddeerr WWiinnddoowwss eennvviirroonnmmeenntt
With outstanding R&D ability of AOpen, we now bring you a whole new BIOS Flash wizard ----
EzWinFlash. With an eye to users convenience, EzWinFlash combines the BIOS binary code
and flash module together, so the only thing you have to do is just clicking on the utility you downloaded from web and let it helps you
complete the flash process automatically. EzWinFlash detects your motherboard and checks the BIOS version cleverly to prevent your
system from any possible failure. Moreover, EzWinFlash has been taken into consideration to go with any windows platform you might be
using, no matter if you’re using Windows 95/98, 98SE/ME, NT4.0/2000, or even the latest Windows XP.
In the meanwhile, in order to provide a much more user-friendly operating environment, AOpen EzWinFlash is natively designed to have
multi-language function to provide easier way for users’ usage in changing BIOS setting.
Caution: By updating your motherboard,
you are taking a risk of BIOS flash failure. If
your motherboard is working stable, and
there are no major bugs that had been fixed
by a latter BIOS revision, we recommend
that you DO NOT try to upgrade your BIOS.
If you intent on upgrading, PLEASE BE
SURE to get the right BIOS revision for the
right motherboard model to avoid any
ossibility failure.
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You may accomplish BIOS upgrade procedure with EzWinFlash by the following steps, and it’s STRONGLY RECOMMENDED to close all
the applications before you start the upgrading.
1. Download the new version of BIOS package zip
2. Unzip the download BIOS package (ex: WAX4GEN102.ZIP) with WinZip (http://www.winzip.com
3. Save the unzipped files into a folder, for example, WAX4GEN102.EXE & WAX4GEN102.BIN.
4. Double click on the WAX4GEN102.EXE, EzWinFlash will detect the model name and BIOS version of your motherboard. If you had
got the wrong BIOS, you will not be allowed to proceed with the flash steps.
5. You may select preferred language in the main menu, then click [Start Flash] to start the BIOS upgrade procedure.
6. EzWinFlash will complete all the process automatically, and a dialogue box will pop up to ask you to restart Windows. You may click
[YES] to reboot Windows.
7. Press <Del> at POST to enter BIOS setup
It is strongly recommended NOT to turn off the power or run any application during FLASH PROCESS.
Warning: The new BIOS upgrade will permanently replace your
original BIOS’s settings when flashing. You may need to reconfigure
your BIOS setting so that your system can go back to work as normal.
file from AOpen official web site. (ex: http://www.aopen.com)
) in Windows environment.
, choose "Load Setup Defaults", then “Save & Exit Setup”. Done!
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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 400/533MHz CPU bus clock. But it comes with clock generator of 992MHz
(248MHz x4) when we design it to accommodate with future CPU bus clock. Not only that, the CPU clock ratio can be up to 24x that
supports almost all of Pentium
But not guaranty. ☺
Tip: Note that overclocking may also
cause thermal problem. Please make
sure that the cooling fan and the heatsink
were adequate to dissipate excessive
heat that's generated by overclocking the
CPU.
☺
☺☺
®
4 CPUs in the future and provides flexibility for overclockers.
Warning: The design of this product follows CPU and chipset vendor's design
guideline. Any attempts to push beyond product specification are not
recommended and you are taking your own risk to damage your system or
important data. Before doing overclocking, you must make sure your
components are able to tolerate such abnormal setting, especially CPU,
DRAMs, hard disks, and AGP VGA cards.
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VVGGAA CCaarrdd && HHaarrdd DDiisskk
VGA and HDD is key components for overclocking, for your reference, the following list are what have been successful overclocked in our
lab. Please note that AOpen can not guaranty they can be successful overclocked again. Please check the Available Vendor List (AVL) by
link to our official website.
VGA: http://www.aopen.com.tw/tech/report/overclk/mb/vga-oc.htm
HDD: http://www.aopen.com.tw/tech/report/overclk/mb/hdd-oc.htm
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GGlloossssaarryy
AACC9977
Basically, AC97 specification separates sound/modem circuit to two parts, digital processor and a CODEC for analogy I/O they are linked by
AC97 link bus. Since digital processor can be put into motherboard main chipset, the cost of sound/modem onboard solution can be
reduced.
AACCPPII ((AAddvvaanncceedd CCoonnffiigguurraattiioonn && PPoowweerr IInntteerrffaaccee))
ACPI is the power management specification of PC97 (1997). It intends to save more power by taking full control of power management to
operating system and bypass BIOS
Windows 98). This is a bit similar as the PnP
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 to operating system (such as
register interface. ACPI defines ATX momentary soft power switch to control the power state
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AAMMRR ((AAuuddiioo//MMooddeemm RRiisseerr))
The CODEC circuit of AC97 sound/modem solution can be put on motherboard or put on a riser card (AMR card) that connects to
motherboard through AMR connector.
AAOOppeenn BBoonnuuss PPaacckk CCDD
A disc bundled with AOpen motherboard product; there are motherboard drivers, Acrobat Reader for PDF online manual and other 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.
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AATTAA//110000
ATA/100 is a new IDE specification under developing. ATA/100 uses both rising edge and falling edge as ATA/66 but clock cycle time is
reduced to 40ns. The data transfer rate is (1/40ns) x 2 bytes x 2 = 100MB/s. To use ATA/100, you need special 80-wire IDE cable, the same
as ATA/66.
AATTAA//113333
Compared to traditional ATA/100, ATA/133 has been up to 33 percent increase in interface speed with transfer rate of 133MB/s. ATA/13 3
performance is ideal for new operating systems, such as Window XP, that demand more storage space and faster data transfer rates from
more responsive computing experiences.
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.
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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.
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
DIMMs are made by FPM/EDO
and only operate at 5V. Do not confuse them with SDRAM DIMM.
, which operate at 3.3V. Note that some old
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DDMMAA ((DDiirreecctt MMeemmoorryy AAcccceessss))
Channel for communications between the memory and surrounding devices.
EECCCC ((EErrrroorr CChheecckkiinngg aanndd CCoorrrreeccttiioonn))
The ECC mode needs 8 ECC bits for 64-bit data. Each time memory is accessed; ECC bits are updated and checked by a special
algorithm. The ECC algorithm has the ability to detect double-bit error and automatically correct single-bit error while parity mode can only
detect single-bit error.
EEDDOO ((EExxtteennddeedd DDaattaa OOuuttppuutt)) MMeemmoorryy
The EDO DRAM technology is actually very similar to FPM (Fast Page Mode). Unlike traditional FPM that tri-states the memory output data
to start the pre-charge activity, EDO DRAM holds the memory data valid until the next memory access cycle, that is similar to pipeline effect
and reduces one clock state.
EEEEPPRROOMM ((EElleeccttrroonniicc EErraassaabbllee PPrrooggrraammmmaabbllee RROOMM))
Also known as E2PROM. Both EEPROM and Flash ROM can be re-programmed by electronic signals, but the interface technology is
different. Size of EEPROM is much smaller than flash ROM.
EEPPRROOMM ((EErraassaabbllee PPrrooggrraammmmaabbllee RROOMM))
Traditional motherboard stores BIOS code in EPROM. EPROM can only be erased by ultra-violet (UV) light. If BIOS has to be upgraded,
you need to remove EPROM from motherboard, clear by UV light, re-program, and then insert back.
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