AOpen AX4SGMAX User Manual
AAXX44SSGG MMaaxx OOnnlliinnee MMaannuuaal
AX4SG Max
DOC. NO.: AX4SGMAX-OL-E0307D
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WWhhaatt’’ss iinn tthhiiss mmaannuuaall
AX4SG Max ................................................................................................................................................. 1
What’s in this manual .................................................................................................................................................................... 2
You Must Notice ............................................................................................................................................................................ 9
Before You Start .......................................................................................................................................................................... 10
Overview ..................................................................................................................................................................................... 11
Feature Highlight ......................................................................................................................................................................... 12
Quick Installation Procedure ....................................................................................................................................................... 17
Motherboard Map ........................................................................................................................................................................ 18
Block Diagram ............................................................................................................................................................................. 19
Hardware Installation ............................................................................................................................ 20
About “User Upgrade Optional” and “Manufacture Upgrade Optional”… ................................................................................... 21
JP14 Clear CMOS Data .............................................................................................................................................................. 22
CPU Installation........................................................................................................................................................................... 23
CPU Fan Installation ................................................................................................................................................................... 25
CPU Over-current Protection ...................................................................................................................................................... 27
AOpen “Watch Dog ABS”............................................................................................................................................................ 29
Full-range Adjustable CPU Core Voltage.................................................................................................................................... 30
CPU and System Fan Connector (with H/W Monitoring) ............................................................................................................ 32
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JP28 Keyboard/Mouse Wake-up Jumper.................................................................................................................................... 33
DIMM Sockets ............................................................................................................................................................................. 34
AC Power Auto Recovery............................................................................................................................................................ 36
IDE and Floppy Connector .......................................................................................................................................................... 37
Serial ATA Supported .................................................................................................................................................................. 39
Connecting Serial ATA Disk......................................................................................................................................................... 40
Support RAID 0 and RAID 1........................................................................................................................................................ 43
Front Panel Connector ................................................................................................................................................................ 44
AGP (Accelerated Graphic Port) 8X Expansion Slot................................................................................................................... 45
AGP Protection Technology and AGP LED ................................................................................................................................. 46
WOL (Wake on LAN)................................................................................................................................................................... 47
IrDA Connector............................................................................................................................................................................ 49
Support 10/100/1000 Mbps LAN onboard................................................................................................................................... 50
Support USB 2.0 Ports ................................................................................................................................................................ 51
IEEE 1394 Connectors................................................................................................................................................................ 52
COM2 Connector ........................................................................................................................................................................ 53
Game Port Bracket Supported .................................................................................................................................................... 54
Color Coded Back Panel ............................................................................................................................................................. 55
S/PDIF (Sony/Philips Digital Interface) Connector...................................................................................................................... 56
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Super 5.1 Channel Audio Effect .................................................................................................................................................. 57
Front Audio Connector ................................................................................................................................................................ 58
Die-Hard BIOS II ......................................................................................................................................................................... 59
JP15/JP16 Dr. Voice Language Select Jumpers......................................................................................................................... 60
JP2 Speaker Output Jumper ....................................................................................................................................................... 61
CD Audio Connector.................................................................................................................................................................... 62
AUX-IN Connector....................................................................................................................................................................... 63
Case Open Connector................................................................................................................................................................. 64
STBY LED (Standby LED)........................................................................................................................................................... 65
Resetable Fuse ........................................................................................................................................................................... 66
Enlarged Aluminum Heatsink ...................................................................................................................................................... 67
Low ESR Capacitor ..................................................................................................................................................................... 68
V4 Power Engine......................................................................................................................................................................... 69
The noise is gone!! ---- SilentTek................................................................................................................................................. 71
EzClock ....................................................................................................................................................................................... 74
Hyper Threading Technology ...................................................................................................................................................... 78
AOConfig Utility ........................................................................................................................................................................... 80
RAID Introduction ..................................................................................................................................82
What’s RAID?.............................................................................................................................................................................. 82
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What are the RAID levels? .......................................................................................................................................................... 83
HDD Capacity of RAID Levels..................................................................................................................................................... 86
Serial ATA RAID for Intel ICH5R.................................................................................................................................................. 87
Serial ATA RAID for Silicon Image 3112A ................................................................................................................................... 89
Phoenix-AWARD BIOS ............................................................................................................................ 94
How To Use Phoenix-Award™ BIOS Setup Program ................................................................................................................. 95
How To Enter BIOS Setup........................................................................................................................................................... 96
WinBIOS Utility............................................................................................................................................................................ 97
BIOS Upgrade under Windows environment .............................................................................................................................. 99
Vivid BIOS technology............................................................................................................................................................... 101
Driver and Utility..................................................................................................................................102
Auto-run Menu from Bonus CD ................................................................................................................................................. 102
Installing Intel® Chipset Software Installation Utility................................................................................................................... 103
Installing Intel Extreme Graphic Driver...................................................................................................................................... 104
Installing Onboard Sound Driver ............................................................................................................................................... 105
Installing Intel Application Accelerator RAID Edition Driver in Windows 2000/XP .................................................................... 106
Installing LAN Driver in Windows 2000/XP ............................................................................................................................... 107
Install LAN Driver in Windows NT 4.0 ........................................................................................................................................111
Installing USB 2.0 Driver ........................................................................................................................................................... 114
nlliinnee MMaannuuaall
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Installing Silicon Image SiI3112A SATA Raid Driver.................................................................................................................. 126
Glossary ...............................................................................................................................................133
AC97 CODEC ........................................................................................................................................................................... 133
ACPI (Advanced Configuration & Power Interface)................................................................................................................... 133
ACR (Advanced Communication Riser) .................................................................................................................................... 133
AGP (Accelerated Graphic Port) ............................................................................................................................................... 134
AMR (Audio/Modem Riser) ....................................................................................................................................................... 134
ATA (AT Attachment) ................................................................................................................................................................. 134
BIOS (Basic Input/Output System)............................................................................................................................................ 135
Bluetooth ................................................................................................................................................................................... 135
CNR (Communication and Networking Riser)........................................................................................................................... 136
DDR (Double Data Rate) RAM.................................................................................................................................................. 136
ECC (Error Checking and Correction)....................................................................................................................................... 136
EEPROM (Electronic Erasable Programmable ROM) .............................................................................................................. 136
EPROM (Erasable Programmable ROM).................................................................................................................................. 137
EV6 Bus .................................................................................................................................................................................... 137
FCC DoC (Declaration of Conformity)....................................................................................................................................... 137
FC-PGA (Flip Chip-Pin Grid Array)............................................................................................................................................ 137
FC-PGA2 (Flip Chip-Pin Grid Array).......................................................................................................................................... 137
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Flash ROM ................................................................................................................................................................................ 138
Hyper Threading........................................................................................................................................................................ 138
IEEE 1394 ................................................................................................................................................................................. 138
Parity Bit .................................................................................................................................................................................... 139
PCI (Peripheral Component Interface) Bus............................................................................................................................... 139
PDF Format............................................................................................................................................................................... 139
PnP (Plug and Play) .................................................................................................................................................................. 139
POST (Power-On Self Test) ...................................................................................................................................................... 140
PSB (Processor System Bus) Clock ......................................................................................................................................... 140
RDRAM (Rambus Dynamic Random Access Memory) ............................................................................................................ 140
RIMM (Rambus Inline Memory Module).................................................................................................................................... 140
SDRAM (Synchronous DRAM) ................................................................................................................................................. 140
SATA (Serial ATA)...................................................................................................................................................................... 141
SMBus (System Management Bus) .......................................................................................................................................... 141
SPD (Serial Presence Detect)................................................................................................................................................... 141
USB 2.0 (Universal Serial Bus) ................................................................................................................................................. 141
VCM (Virtual Channel Memory) ................................................................................................................................................ 142
Wireless LAN – 802.11b............................................................................................................................................................ 142
ZIP file ....................................................................................................................................................................................... 142
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Troubleshooting ................................................................................................................................... 143
Technical Support ................................................................................................................................147
Product Registration............................................................................................................................ 151
How to Contact Us............................................................................................................................... 152
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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
©
1996-2003, 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
recommend using Adobe Acrobat Reader 5.0 for online viewing, it is included in Bonus CD or you can 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
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OOvveerrvviieeww
Thank you for choosing AOpen AX4SG Max motherboard. AX4SG Max is Intel® Socket 478 motherboard (M/B) based on the ATX form
factor featuring the Intel 865-G chipsets
®
Pentium
additional intelligence to systems. In the AGP
long burst transfer up to 2112MB/sec.The slot also support ADD card. According to different customer’s requirements, this motherboard
supports DDR266
Serial ATA
PCI slots provided on this board and two IEEE1394
A total of 6 USB 2.0
on the board give you the best use of all USB devices with the
fancy speed up to 480Mbps. More than that, on the strength of
integrated BCM LAN controller on board, which is a highly
integrated Platform LAN Connect devices, it provides
10/100/1000M bps Ethernet for office and home use. Besides,
AX4SG Max has S/PDIF connector and an AC97 CODEC
RealTek ALC650 chipset onboard, providing high performance
and magic surround stereo sound to let people enjoy working
with it. Now, let’s enjoy all features from AOpen AX4SG Max
motherboard.
4 1.6GHz~3.06GHz. It supports 400/533/800MHz Front Side Bus (FSB) clock and Hyper-Threading Technology which brings
. As high performance chipset built in the M/B, AX4SG Max motherboard supports Intel® Socket 478
performance, it has one AGP slot to support AGP 8X/4X mode and pipelined spilt-transaction
, DDR333 and DDR400 RAM up to 4GB maximum. The onboard IDE controller supports Ultra DMA 33/66/100 mode,
150 MB/s and IDE Raid 0, Raid 1 mode. There are 6
connectors.
ports on the back panel and one connector
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FFeeaattuurree HHiigghhlliigghhtt
CPU
Supports Intel® Socket 478 Pentium® 4 (Northwood) 1.6GHz~3.06GHz+ with 400/533/800MHz Front Side Bus (FSB) designed for Socket
478 technology.
Chipset
Intel 865 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 0.8/1.5V 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 Intel 865 platform supports the fifth generation I/O Controller Hub
(ICH5R).
The ICH5R integrates an Ultra ATA 100 controller, two Serial ATA host controllers, one EHCI host controller and four UHCI host controllers
supporting eight external USB 2.0 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 865 GMCH.
Memory
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With Intel 865 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 transfer 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.
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. Of six PCI slots provided,
all of them are master PCI slots with arbitration and decoding for all integrated functions and LPC bus. AX4SG Max motherboard includes
one AGP expansion slot for a bus mastering AGP graphic card. The
video display sophistication and speed. The AGP video cards support data transfer rate up to 2112MB/s. Or you may have ADD card cabled
to this AGP slot to provide high-speed digital connection for digital displays.
Accelerated Graphics Port (AGP)
specification provides a new level of
AGP Protection Technology
With AGP Protection Technology implemented, this motherboard will automatically detect the voltage of AGP card and prevent your
chipsets from being burnt out.
Hyper-Threading Technology
Support Hyper-Threading Technology which brings additional intelligence to systems so that multiple tasks received from the processor can
be managed and prioritized more effectively.
Watch Dog ABS
Includes AOpen “Watch Dog ABS” function that can auto-reset system in 4.8 seconds when you fail the system overclocking.
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1MHz Stepping CPU Frequency Adjustment
Provides “1MHz Stepping CPU Frequency Adjustment” function in the BIOS. This magic function allows you to adjust CPU FSB frequency
from 100~400MHz by 1MHz stepping adjustment, and helps your system get maximum performance.
LAN Port
On the strength of BCM5705, a fourth-generation triple-speed 10/100/100 base-T Ethernet LAN Controller solution for high-performance
network applications, this motherboard provides 10/100/1000 Mbps Ethernet for office and home use.
Ultra DMA 33/66/100 Bus 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 ICH5R 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 ICH5R SATA interface supports data transfer rates up to
150MB/s.In this motherboard the SATA interfaces support RAID 0 and RAID 1 modes.
On-board AC’97 Sound
AX4SG Max uses RealTek AC97 CODEC RealTek ALC650 sound chip. This on-board audio includes a complete audio recording and
playback system.
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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. Voice II
The Dr. Voice II can identify what kind of problems had occurred in the operating system. It provides four kinds language versions.
S/PDIF Connector
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 which confirms to the power-saving standards of the U.S. Environmental Protection Agency (EPA)
Energy Star program. It also offers
user-friendlier.
Plug-and-Play
, 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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SilentTek
Combines “Hardware-Status Monitoring”, “Overheat Warning” and “Fan Speed Control” with user-friendly interfaces to provide a perfect
balance among noises, system performance and stability.
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) and S5 features.
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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 XP)
10.
Installing Driver and Utility
11.
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Motherboard Map
AC’97 CODEC
AUX-IN Connector
CD-IN Connector
COM2 Connector
Game Port Connector
32-bit PCI Expansion Slot x6
Resetable Fuse
IrDA Connector
Front Audio Connector
S/PDIF Connector
USB 2.0 Connector
SATA Port x 4
JP14 CMOS Clear Jumper
IEEE1394 Connector x 2
Wake on LAN Connector
SYSFAN3 Connector
Front Panel Connector
Die-hard BIOS
JP24 BIOS Rescue Jumper
Case Open Connector
18
Colored Back Panel
JP28 Keyboard/Mouse
Wakeup Jumper
SYS Connector FAN2
Low ESR Capacitors
AGP 8x Expansion Slot
su
CPUFAN1 connector
Intel 865-G Chipset that
supports 533/800MHz FSB,
DDR 400 and AGP 8X
184-pin DIMMx4 support
DDR400/333/266 SDRAM
maximum up to 4GB
ATX Power Connector
JP2 Speaker Output Connector
JP15/JP16 Dr. Voice II
Language Select Jumper
ATA66/100 IDE Connector x2
FDD Connector
4-pin 12V. ATX Power Connector
orts ADD card
478-pin CPU socket (Northwood)
with Voltage and Frequency
Auto-detection that supports Intel
Pentium® 4 1.6~3.06GHz+ CPU
®
AAXX44SSGG MMaaxx OOnnlliinnee MMaannuuaall
BBlloocckk DDiiaaggrraamm
Socket 478
Intel Pentium 4
CPU
AGP 8X Slot
VGA onboard
LAN connect Component
DDR400/333/266 Dual Channel
RAM Up to 4GB
32-bit PCI Slot x6
DIMM Socket x4
533/800MHz
System Bus
AGP bus
Gigabit
BCM5705
Floppy Disk Drive x2
Intel
865-G
USB Port x8
PCI Bus
USB Port
USB Port
USB Port
USB Port
4Serial ATA Ports
150MB/s
ATA 66/100
SATA 1
SATA 2
SATA 3
SATA 4
Primary
Channel
Secondary
Channel
ICH5R
RealTek
AC97
CODEC
4Mbit Flash EEPROM
4Mbit Flash EEPROM
Parallel Port
Serial Port x2
IEEE1394 x2
IEEE1394 x2
IDE Drive 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 ““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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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 pin1 & 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 (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
Note: This picture is for example only; it may not look the same with the motherboard you purchased.
M
installation.
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OOnnlliinnee MMaannuuaall
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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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.
Note: The picture above may look different from the product you purchased.
2. Pressing down the four clips with force one by one
on the retention module.
Clip
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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, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less designs are eliminated.
There will be no worry of wrong CPU voltage detection.
CPU VID signal
(Automatically generates CPU voltage)
Intel® Socket 478
Power Regulator
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
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””
user’s settings stored in the BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will 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.
AOpen
Watch Dog ABS
Enable/Disable Signal from
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
enable “Watch Dog ABS” function immediately, and set the CPU FSB frequency according to
BIOS
BIOS
Reset Signal
Clock Generator
Countdown about
5 seconds if fails
in POST
CPU
status. If it succeeded, the BIOS will
CPU ID Signal
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FFuullll--rraannggee AAddjjuussttaabbllee CCPPUU CCoorree VVoollttaaggee
This function is dedicated to overclockers and supports Adjustable CPU Core Voltage from 1.10V to 1.85V. However, this motherboard can
also automatically detect CPU VID signal and generates proper 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 in BIOS; no jumpers or switches are needed. The default setting
is "table select mode". You can adjust the FSB from "CPU Host/RAM/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 8x, 10x… 21x, 22x, 23x, 24x
CPU FSB (By BIOS table) 100-400MHz
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