AOpen AX4SGL User Manual
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AX4SG / AX4SG-N / AX4SG-L
DOC. NO.: AX4SGL-OL-E0304B
Overview
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Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
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WWhhaatt’’ss iinn tthhiiss mmaannuuaall
AX4SG / AX4SG-N / AX4SG-L .............................................................................. 错误！未定义书签。
What’s in this manual ...................................................................................................................................................... 2
You Must Notice .............................................................................................................................................................. 8
Before You Start.............................................................................................................................................................. 9
Overview ....................................................................................................................................................................... 10
Feature Highlight........................................................................................................................................................... 11
Quick Installation Procedure .........................................................................................................................................16
Motherboard Map .......................................................................................................................................................... 17
Block Diagram ............................................................................................................................................................... 18
Hardware Installation................................................................................................................ 19
About “Manufacturer Upgrade Optional” and “User Upgrade Optional”… ...................................................................... 20
JP14 Clear CMOS Data ................................................................................................................................................ 21
CPU Installation ............................................................................................................................................................ 22
CPU Over-current Protection......................................................................................................................................... 26
AOpen “Watch Dog ABS” ..............................................................................................................................................28
CPU Core Voltage Auto Detectable ............................................................................................................................... 29
CPU and System Fan Connector (with H/W Monitoring) ............................................................................................... 31
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JP28 Keyboard/Mouse Wake-up Enable/Disable Jumper .............................................................................................. 32
DIMM Sockets ............................................................................................................................................................... 33
Front Panel Connector .................................................................................................................................................. 35
ATX Power Connector................................................................................................................................................... 36
AC Power Auto Recovery .............................................................................................................................................. 37
STBY LED and BOOT LED ........................................................................................................................................... 38
IDE and Floppy Connector ............................................................................................................................................ 39
Serial ATA Supported (with RAID function, RAID for AX4SG-L only) ............................................................................. 41
IrDA Connector .............................................................................................................................................................49
S/PDIF (Sony/Philips Digital Interface) Connector......................................................................................................... 50
Super 5.1 Channel Audio Effect .................................................................................................................................... 51
AGP (Accelerated Graphic Port) 8X Expansion Slot...................................................................................................... 52
AGP Protection Technology and AGP LED.................................................................................................................... 53
WOL (Wake on LAN) ..................................................................................................................................................... 54
Color Coded Back Panel ...............................................................................................................................................56
Support 10/100/1000 Mbps LAN onboard (for AX4SG-N and AX4SG-L) .......................................................................57
Support Eight USB2.0 Connectors ................................................................................................................................ 58
COM2 Connector ..........................................................................................................................................................59
Game Port Bracket Supported ...................................................................................................................................... 60
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Chassis Intrusion Connector .........................................................................................................................................61
CD Audio Connector ..................................................................................................................................................... 62
AUX-IN Connector......................................................................................................................................................... 63
Front Audio Connector .................................................................................................................................................. 64
Dr. LED Connector ........................................................................................................................................................ 65
AOConfig Utility ............................................................................................................................................................. 67
Resetable Fuse ............................................................................................................................................................. 69
3300µF Low ESR Capacitor .......................................................................................................................................... 70
Enlarged Aluminum Heatsink ........................................................................................................................................ 72
Open JukeBox Player.................................................................................................................................................... 73
Vivid BIOS technology................................................................................................................................................... 77
The noise is gone!! ---- SilentTek .................................................................................................................................. 78
EzClock......................................................................................................................................................................... 81
Hyper Threading Technology......................................................................................................................................... 85
Driver and Utility .......................................................................................................................87
Auto-run Menu from Bonus CD Disc ............................................................................................................................. 87
Installing Intel® Chipset Software Installation Utility....................................................................................................... 88
Intel Brookdale-G VGA driver ........................................................................................................................................ 89
Installing Intel IAA Driver RAID Edition.......................................................................................................................... 90
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Installing Onboard Sound Driver ...................................................................................................................................91
Installing USB 2.0 Driver ............................................................................................................................................... 92
Installing LAN Driver (for AX4SG-N).............................................................................................................................. 96
Installing LAN Driver (for AX4SG-L) .............................................................................................................................. 99
PHOENIX-AWARD BIOS............................................................................................................ 102
How To Use Phoenix-Award™ BIOS Setup Program................................................................................................... 103
How To Enter BIOS Setup ........................................................................................................................................... 104
BIOS Upgrade under Windows environment ...............................................................................................................105
WinBIOS Utility ........................................................................................................................................................... 107
Glossary .................................................................................................................................. 109
AC97 CODEC ............................................................................................................................................................. 109
ACPI (Advanced Configuration & Power Interface) .....................................................................................................109
ACR (Advanced Communication Riser)....................................................................................................................... 109
AGP (Accelerated Graphic Port).................................................................................................................................. 110
AMR (Audio/Modem Riser).......................................................................................................................................... 110
ATA (AT Attachment) ................................................................................................................................................... 110
BIOS (Basic Input/Output System) ...............................................................................................................................111
Bluetooth......................................................................................................................................................................111
CNR (Communication and Networking Riser)...............................................................................................................111
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DDR (Double Data Rate) RAM .................................................................................................................................... 112
ECC (Error Checking and Correction) ......................................................................................................................... 112
EEPROM (Electronic Erasable Programmable ROM).................................................................................................. 112
EPROM (Erasable Programmable ROM)..................................................................................................................... 112
EV6 Bus ...................................................................................................................................................................... 113
FCC DoC (Declaration of Conformity) ......................................................................................................................... 113
FC-PGA (Flip Chip-Pin Grid Array) .............................................................................................................................. 113
FC-PGA2 (Flip Chip-Pin Grid Array) ............................................................................................................................ 113
Flash ROM .................................................................................................................................................................. 113
Hyper Threading ......................................................................................................................................................... 114
IEEE 1394................................................................................................................................................................... 114
Parity Bit ..................................................................................................................................................................... 114
PCI (Peripheral Component Interface) Bus ................................................................................................................. 115
PDF Format................................................................................................................................................................. 115
PnP (Plug and Play) .................................................................................................................................................... 115
POST (Power-On Self Test) ........................................................................................................................................ 115
PSB (Processor System Bus) Clock ............................................................................................................................ 115
RDRAM (Rambus Dynamic Random Access Memory) ................................................................................................ 116
RIMM (Rambus Inline Memory Module) ...................................................................................................................... 116
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SDRAM (Synchronous DRAM) .................................................................................................................................... 116
SATA (Serial ATA) ....................................................................................................................................................... 116
SMBus (System Management Bus) ............................................................................................................................. 117
SPD (Serial Presence Detect) ..................................................................................................................................... 117
USB 2.0 (Universal Serial Bus) ................................................................................................................................... 117
VCM (Virtual Channel Memory)................................................................................................................................... 117
Wireless LAN – 802.11b .............................................................................................................................................. 118
ZIP file......................................................................................................................................................................... 118
Troubleshooting....................................................................................................................... 119
Technical Support ...................................................................................................................123
Product Registration ...............................................................................................................126
How to Contact Us ............................................................................................. 错误！未定义书签。
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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, 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
©
1996-2003, 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
get free download from Adobe web site
Although this Online Manual is optimized for screen viewing, it is still capable for hardcopy printing, you can print it by A4 paper
size and set 2 pages per A4 sheet on your printer. To do so, choose File > Page Setup and follow the instruction of your printer
driver.
Thanks for the help of saving our earth.
, we recommend using Adobe Acrobat Reader 5.0 for online viewing, it is included in Bonus CD disc or you can
.
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OOvveerrvviieeww
Thank you for choosing AOpen AX4SG / AX4SG-N / AX4SG-L motherboard. The AX4SG / AX4SG-N / AX4SG-L is Intel® Socket
478 motherboard (M/B) based on the ATX form factor featuring the Intel
built in the M/B, the AX4SG / AX4SG-N / AX4SG-L motherboard can support Intel
MHz Front Side Bus (FSB)
spilt-transaction long burst transfer up to 2112MB/sec. According to different customer’s requirements, the Intel Springdale-G
chipset memory interface supports DDR400/333/266 SDRAM devices with densities of 64,128, 256, 512,1024Mb DDR RAM
DIMM modules and the maximum memory size can be up to 4 GB. The onboard IDE controller supports Ultra DMA 33/66/100
mode, Serial ATA
BCM5705 controller on board, which is a highly-integrated Platform
LAN Connect device, it provides 10/100/1000M bps Ethernet for
office and home use. For AX4SG-N, it integrates Broadcom
BCM4401 controller on board, and it provides 10/100M bps
Ethernet. Besides, the AX4SG / AX4SG-N / AX4SG-L has an AC97
chipset onboard, providing high performance and magic
CODEC
surround stereo sound to let people enjoy working with it. More
than that, this motherboard supports USB 2.0
speed of up to 480Mbps. Now, let’s enjoy all features from AOpen
AX4SG / AX4SG-N / AX4SG-L motherboard.
®
Springdale-G chipset. As high performance chipset
clock. In the AGP performance, it has one AGP slot and supports AGP 8X/4X mode and pipelined
150 Mbps and there are 6 PCI slots provided on this board. For AX4SG-L, On the strength of Broadcom
function with a fancy
®
Socket 478 Pentium® 4 and 400/533/800
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FFeeaattuurree HHiigghhlliigghhtt
CPU
Supports Intel® Socket 478 Pentium® 4 1.6GHz~3.06 GHz+ with 400/533/800 MHz Front Side Bus (FSB) designed for Socket
478 technology.
Chipset
Springdale-G is a Graphics Memory Controller Hub (GMCH) designed for use with the Pentium 4 processor with 512-KB L2
cache on 0.13 micron processor. It provides CPU, DDR, AGP, Hub, CSA Interfaces and integrated graphics with display
interfaces. The CPU interface supports Pentium 4 processor subset of the Extended Mode of the Scalable Bus Protocol. The
GMCH memory interface supports one up to two channels of DDR, and the AGP interface supports 0.8V/1.5V signaling with
8X/4X data transfers and 8X/4X AGP Fast Writes. The integrated graphics controller provides 3D, 2D, and display capabilities
while using a portion of system memory for graphics memory (UMA) to provide a cost effective, high performance graphics
solution. The Springdale-G platform supports the fifth generation I/O Controller Hub (ICH5 and ICH5R).
The ICH5 integrates an Ultra ATA 100 controller, two Serial ATA host controllers, one EHCI host controller and four UHCI host
controllers supporting eight external USB2.0 ports, LPC interface controller; flash BIOS interface controller, PCI interface
controller, AC’97 digital controller, integrated LAN controller, an ASF controller and a hub interface for communication with the
Springdale-G GMCH. The ICH5R offers the same feature as ICH5 and adds support for RAID 0.
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Expansion Slots
Including six 32-bit/33MHz PCI and one AGP 8X/4X slots. The PCI local bus throughput can be up to 132MB/s. For AX4SG-N
and AX4SG-L, of six PCI slots provided, five of them are master PCI slots with arbitration and decoding for all integrated
functions and LPC bus, and PCI 1 supports slave mode PCI card only. For AX4SG, all six PCI slots are master PCI slots. AX4SG
/ AX4SG-N / AX4SG-L motherboard includes one AGP expansion slot for a bus mastering AGP graphic card. The
Graphics Port (AGP) specification provides a new level of video display sophistication and speed. The AGP video cards support
data transfer rate up to 2112MB/s.
Accelerated
Memory
With Springdale-G chipset, this motherboard can support dual channel Double-Data-Rate (DDR) RAM. The dual channel mode
allows chipsets to get data in 128 bit and zero wait state bursting between the RAM, The data transfers at 266/333/400MHz. The
four slots of DDR RAM can be composed of an arbitrary mixture of 64, 128, 256, 512 MB or 1GB DDR RAM and maximum up to
4GB.
LAN Port
For AX4SG-L, On the strength of Broadcom BCM5705 on board, which is a highly-integrated Platform LAN Connect device, it
provides 10/100/1000 Mbps Ethernet for office and home use. For AX4SG-N, there is a Broadcom BCM4401 controller on board,
and it can provide 10/100 Mbps Ethernet.
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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.
Serial ATA
Integrated in ICH5 that contains independent DMA operation on two ports. The SATA controllers are completely software
transparent with the IDE interface, while providing a lower pin count and higher performance. The ICH5 SATA interface supports
data transfer rates up to 150MB/s. Because AX4SG-L has ICH5R on board, it supports RAID 0 when using SATA HDD.
On-board AC’97 Sound
AX4SG / AX4SG-N / AX4SG-L uses the AC97 sound chip. This on-board audio includes a complete audio recording and
playback system.
1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you adjust FSB frequency
from 100~400 by 1MHz stepping adjustment, and lets your system can get maximum performance.
Watch Dog ABS
Includes AOpen “Watch Dog ABS” functions that can auto-reset default settings in 4.8 seconds when you fail to system
overclocking.
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S/PDIF Connectors
S/PDIF (Sony/Philips Digital Interface) is a newest audio transfer format, which provides impressive quality through optical fiber
and allows you to enjoy digital audio instead of analog audio.
Eight USB 2.0 Ports
Provides six ports on the back panel and one USB 2.0 connector on the board, providing a total of eight USB 2.0 interface to
connect devices such as mouse, keyboard, modem, scanner, etc.
Dr. LED (User Upgrade Optional)
The Dr. LED has 8 LEDs on this AX4SG / AX4SG-N / AX4SG-L M/B to easily show what kind of problems you may encounter.
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
making the system much user-friendlier.
Plug-and-Play
, which helps save users from configuration problems, thus
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/XP 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
Installing Operating System (such as Windows 98)
10.
Installing Driver and Utility
11.
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AGP Slot
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1 GbE LAN (for AX4SG-L)
Onboard AC’97 CODEC
32-bi
t PCI Expansion Slot x6
(for AX4SG-N and AX4SG-L,
PCI 1 supports slave mode
JP14 CMOS
Case Open Connector
Front Panel Connector
COM2 Connector
Game Port Connector
PCI card only)
IrDA Connector
Front Audio Connector
S/PDIF Connector
Dr. LED Connector
CD-IN Connector
AUX-IN Connector
Clear Jumper
USB 2.0 Connector
4Mb Flash Rom BIOS
WOL Connector
SYSFAN3 Connector
STBY LED
Serial ATA Port x2
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Motherboard Map
Resetable Fuse
Colored Back Panel
JP28 Keyboard/Mouse Wakeup
Enable/Disable Jumper
4-pin 12V. ATX Powe
SYSFAN2 Connector
AGP Protection LED
(For 1.5V AGP card or ADD card)
478-pin CPU socket with Voltage
and Frequency Auto-detection
that supports Intel
1.6~3.06GHz+ CPU (Northwood)
CPUFAN1 Connector
Intel® Springdale-G chipset
BOOT LED
184-pin DIMMx4 supports Dual
Channel modeDDR400/333/266
(Max. to 4GB)
ATX Power Connector
ATA 33/66/100
IDE Connector x2
FDD Connector
l
r Connector
®
Pentium4
3300μF Low ESR Capacitors
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BBlloocckk DDiiaaggrraamm
Socket 478
Inte l
Pentium 4
CPU
VGA onboard
AGP 8x/4x Slot
Or
ADD Slot
Floppy Disk Drive x2
DDR 400/333/266 Dual Channel
DIMM Socket x4
800/533/400MHz
System Bus
LAN connect
Component
(For AX4SG-N and
AX4SG-L)
RAM up to 4G
Intel
Springdale-G
GMCH
USB 2.0
Connector x8
PCI Bus
Broadcom
BCM5705 (For AX4SG-L)
/ BCM4401 (for AX4SG-N)
1stUSB Port
2ndUSB Port
3rdUSB Port
4thUSB Port
32-bit PCI Slot x6
Two Serial
ATA Ports
150M B/s
ATA
33/66100
Primary
Channel
Secondary
Channel
Intel ICH5(for AX4SG
and AX4SG-N) /
ICH5R(fo r AX4SG-L)
Low
Pin
Count
Super
I/O
AC97
CODEC
Firmware Hub
4Mbit Flash EEPROM
Parallel Por t
Serial Port x2
SATA 1
SATA 2
IDE D rive x4
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HHaarrddwwaarree IInnssttaallllaattiioonn
This chapter describes jumpers, connectors and hardware devices of this motherboard.
Note: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other
components. Always 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 ““MMaannuuffaaccttuurreerr UUppggrraaddee OOppttiioonnaall”” aanndd ““UUsseerr UUppggrraaddee OOppttiioonnaall””……
When you read this online manual and start to assemble your computer system, you may find some of functions are called “Manufacturer
Upgrade Optional”, and some are called “User Upgrade Optional”. Though all AOpen motherboards include many amazing and powerful
features, in some situations, these powerful features are not used to every user. Hence, we changed some key features as “Manufacturer
Upgrade Optional” for you to choose. Some optional functions that can be upgraded by users, we call them “User Upgrade Optional”. As for
those optional functions that can’t be upgraded by ourselves, we call them “Manufacturer Upgrade Optional”. If needed, you can contact our
local distributors or resellers for purchasing “User Upgrade Optional” components, and again you can visit AOpen official web site:
http://english.aopen.com.tw/
for more detail information.
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JJPP1144 CClleeaarr CCMMOOSS DDaattaa
You can clear CMOS to restore system default setting. To clear the CMOS, follow the procedure below.
1. Turn off the system and unplug the AC power.
2. Remove ATX power cable from connector PWR2.
3. Locate JP14 and short pins 2-3 for a few seconds.
4. Return JP14 to its normal setting by shorting pins 1 & pin2.
5. Connect ATX power cable back to connector PWR2.
Pin 1
1
Normal
default
1
Clear CMOS
Tip: When should I Clear CMOS?
1. Boot fails because of overclocking…
2. Forget password…
3. Troubleshooting…
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CCPPUU IInnssttaallllaattiioonn
This motherboard supports Intel® Pentium 4 Socket 478 series CPU. 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.
Note: These pictures are for example only, it may not exactly be the same motherboard.
3. Press down the CPU socket lever and finish CPU installation.
2. Locate Pin 1 in the socket and look for a cut edge on the CPU upper
interface. Match Pin 1 and cut edge, then insert the CPU into the socket.
CPU socket
Lever
CPU pin 1 and
cut edge
CPU cut edge
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Note: This picture is for example only, it may not exactly be the same motherboard.
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CPU cut edge
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
ma
damage the CPU.
Note: This socket supports
Micro-FC-PGA2 package CPU, which is
the latest CPU package developed by
Intel. Other forms of CPU package are
impossible to be fitted in.
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CCPPUU FFaann IInnssttaallllaattiioonn
This motherboard comes with a retention module attached on the CPU socket when shipped, we strongly recommend you to install AOpen
special designed CPU Fan as shown below on the retention module for better heat dissipation. Please install the CPU Fan correctly as the
following pictures shown.
1. Gently put the CPU Fan down on the
retention module with clips aligning correctly
to the four corners.
2. Pressing down the four clips with force one by one
on the retention module.
Clip
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CCPPUU JJuummppeerr--lleessss DDeessiiggnn
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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CCPPUU 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.
ATX Switching Power Supply
Note: Although we have implemented protection circuit try to prevent any human operating mistake,
there is still certain risk that CPU, memory, HDD, add-on cards installed on this motherboard may be
damaged because of component failure, human operating error or unknown nature reason. AOpen
cannot guaranty the protection circuit will always work perfectly.
12V (Protected by power supply)
3.3V (Protected by power supply)
5V (Protected by power supply)
Onboard Power Regulator
(Over-Current Protection)
CPU Core Voltage
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BBaatttteerryy--lleessss aanndd LLoonngg LLiiffee DDeessiiggn
This Motherboard implements a Flash ROM
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.
and a special circuit that provide you no batter power consumption of current CPU and CMOS
ATX Stand-by Power
n
Battery
l
Flash ROM
(Real Time Clock)
Auto Switch
RTC
00:00:00
CMOS
Auto switch to ATX standby
power as long as AC power line
is plugged. This smart design
increases battery life if you still
plug battery on motherboard.
Backup by EEPROM
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AAOOppeenn ““WWaattcchh DDoogg AABBSS””
CPU FSB
reset the system to reboot in five seconds. Then, BIOS will detect the CPU’s default frequency and POST again. With this
special feature, you can easily overclock your system to get a higher system performance without removing the system housing
and save the hassle from setting the jumper to clear CMOS data when system hangs.
frequency according to user’s settings stored in the BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will
Enable/Disable Signal
AOpen
Watch Dog ABS
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
succeeded, the BIOS will enable “Watch Dog ABS” function immediately, and set the
from BIOS
BIOS
Reset Signal
Clock Generator
Countdown about
5 seconds if fails
in POST
status. If it
CPU ID Signal
CPU
28
AAXX44SSGG // AAXX44SSGG--NN // AAXX44SSGG--LL OOnnlliinnee MMaannuuaal
l
CCPPUU CCoorree VVoollttaaggee AAuuttoo DDeetteeccttaabbllee
This motherboard supports CPU VID function. The CPU core voltage will be automatically detected and the range is from 1.1V ~
2.025V. It is not necessary to set CPU Core Voltage.
SSeettttiinngg CCPPUU FFrreeqquueennccyy
BIOS Setup > Frequency/Voltage Control > CPU Bus Frequency
This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no jumpers or switches
are needed.
CPU Ratio 8x, 9x, 10x,…22x, 23x, 24x
CPU FSB 100MHz~400MHz
Home
Tip: If your system hangs or fails to boot because of
overclocking, simply use <Home> key to restore the
default setting or you can wait the AOpen “Watch Dog
Timer” reset the system after five seconds and system
will auto-detect hardware ag
ain.
29
g
AAXX44SSGG // AAXX44SSGG--NN // AAXX44SSGG--LL OOnnlliinnee MMaannuuaal
Core Frequency = CPU FSB Clock * CPU Ratio
PCI Clock = CPU FSB Clock / Clock Ratio
AGP Clock = PCI Clock x 2
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 2.6G 2600MHz 200MHz 800MHz 13X
Pentium 4 2.66G 2660MHz 133MHz 533MHz 20x
Pentium 4 2.80G 2800MHz 133MHz 533MHz 21x
Pentium 4 2.80G 2800MHz 200MHz 800MHz 14x
Pentium 4 3.0G 3000MHz 200MHz 800MHz 15x
Pentium 4 3.06G 3060MHz 133MHz 533MHz 23x
CPU Core
Frequency
FSB Clock System Bus Ratio
Note: Intel Springdale-G chipset only
support Northwood processors, and
don’t support Willamette or Celeron
processors. Northwood processor
would detect the clock ratio
automatically, you may not be able to
adjust the clock ratio in BIOS
manually.
Warning: Intel® Spingdale-G chipset
supports maximum 400/533/800 MHz
(100/133/200MHz*4) system bus and
66MHz AGP clock; higher clock
setting may cause serious system
dama
e.
l
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