AOpen AX4GER User Manual
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AX4GER / AX4GER-N
DOC. NO.: AX4GERN-OL-E0209A
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Overview
Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
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AX4GER / AX4GER-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 “Manufacturer Upgrade Optional” and “User Upgrade Optional”…...................................................................... 20
JP14 Clear CMOS Data ................................................................................................................................................21
CPU Installation ............................................................................................................................................................22
CPU Jumper-less Design ..............................................................................................................................................25
Full-range Adjustable CPU Core Voltage ...................................................................................................................... 27
CPU and System Fan Connector (with H/W Monitoring) ...............................................................................................29
JP28 Keyboard/Mouse Wake-up Jumper ...................................................................................................................... 30
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DIMM Sockets ............................................................................................................................................................... 31
DDR 266(PC2100) and DDR 333(PC2700)................................................................................................................... 33
Front Panel Connector .................................................................................................................................................. 34
ATX Power Connector................................................................................................................................................... 35
AC Power Auto Recovery .............................................................................................................................................. 35
STBY LED and BOOT LED ........................................................................................................................................... 36
IDE and Floppy Connector ............................................................................................................................................ 37
IrDA Connector ............................................................................................................................................................. 39
S/PDIF (Sony/Philips Digital Interface) Connector ........................................................................................................ 40
Super 5.1 Channel Audio Effect .................................................................................................................................... 41
WOM (Zero Voltage Wake on Modem) Connector......................................................................................................... 42
WOM by External BOX Modem ..................................................................................................................................... 43
WOM by Internal Modem Card ...................................................................................................................................... 44
WOL (Wake on LAN)..................................................................................................................................................... 45
CNR (Communication and Network Riser) Expansion Slot............................................................................................ 47
PC99 Color Coded Back Panel ..................................................................................................................................... 48
Support 10/100 Mbps LAN onboard (For AX4GER-N)................................................................................................... 49
JP13 LAN Enable/Disable Jumper ................................................................................................................................ 50
Support USB2.0 Connectors ......................................................................................................................................... 51
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Case Open Connector................................................................................................................................................... 52
CD Audio Connector ..................................................................................................................................................... 53
AUX-IN Connector ........................................................................................................................................................ 54
Front Audio Connector .................................................................................................................................................. 55
Dr. LED Connector ........................................................................................................................................................ 56
COM2 Connector .......................................................................................................................................................... 58
JP1 Buzzer Enable/Disable Jumper ..............................................................................................................................59
Battery-less and Long Life Design ................................................................................................................................ 60
CPU Over-current Protection ........................................................................................................................................ 61
Hardware Monitoring ..................................................................................................................................................... 62
AOConfig Utility............................................................................................................................................................. 63
3300µF Low ESR Capacitor .......................................................................................................................................... 65
Layout (Frequency Isolation Wall)................................................................................................................................. 66
Enlarged Aluminum Heatsink ........................................................................................................................................ 67
Open JukeBox Player.................................................................................................................................................... 68
Vivid BIOS technology .................................................................................................................................................. 72
Driver and Utility ......................................................................................................................... 73
Auto-run Menu from Bonus CD .....................................................................................................................................74
Installing Intel® Chipset Software Installation Utility ..................................................................................................... 75
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Installing Intel IAA Driver............................................................................................................................................... 76
Installing Intel Extreme Graphic Driver .......................................................................................................................... 77
Installing Onboard Sound Driver ...................................................................................................................................78
Installing LAN Driver (For AX4GER-N) .......................................................................................................................... 79
Installing USB2.0 Driver ................................................................................................................................................ 82
Installing Hardware Monitoring Utility ............................................................................................................................ 85
Phoenix-AWARD BIOS.................................................................................................................. 86
About BIOS Function Description… ..............................................................................................................................87
How To Use Phoenix-Award™ BIOS Setup Program .................................................................................................... 88
How To Enter BIOS Setup ............................................................................................................................................. 90
BIOS Upgrade under Windows environment ................................................................................................................. 91
Overclocking................................................................................................................................ 93
VGA Card & Hard Disk.................................................................................................................................................. 94
Glossary ....................................................................................................................................... 95
AC97............................................................................................................................................................................. 95
ACPI (Advanced Configuration & Power Interface) .......................................................................................................95
AGP (Accelerated Graphic Port) ................................................................................................................................... 95
AMR (Audio/Modem Riser)............................................................................................................................................ 96
AOpen Bonus Pack CD ................................................................................................................................................. 96
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APM (Advanced Power Management)........................................................................................................................... 96
ATA (AT Attachment) ..................................................................................................................................................... 96
ATA/66 ..........................................................................................................................................................................96
ATA/100 ........................................................................................................................................................................ 97
ATA/133 ........................................................................................................................................................................ 97
BIOS (Basic Input/Output System) ................................................................................................................................ 97
Bus Master IDE (DMA mode) ........................................................................................................................................ 98
CNR (Communication and Networking Riser) ............................................................................................................... 98
CODEC (Coding and Decoding) .................................................................................................................................... 98
DDR (Double Data Rated) SDRAM ............................................................................................................................... 98
DIMM (Dual In Line Memory Module)............................................................................................................................ 99
DMA (Direct Memory Access) .......................................................................................................................................99
ECC (Error Checking and Correction) ........................................................................................................................... 99
EDO (Extended Data Output) Memory .......................................................................................................................... 99
EEPROM (Electronic Erasable Programmable ROM).................................................................................................. 100
EPROM (Erasable Programmable ROM) .................................................................................................................... 100
EV6 Bus ...................................................................................................................................................................... 100
FCC DoC (Declaration of Conformity) ......................................................................................................................... 100
FC-PGA (Flip Chip-Pin Grid Array).............................................................................................................................. 100
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Flash ROM .................................................................................................................................................................. 101
FSB (Front Side Bus) Clock ........................................................................................................................................ 101
I2C Bus........................................................................................................................................................................ 101
IEEE 1394................................................................................................................................................................... 102
Parity Bit .....................................................................................................................................................................102
PBSRAM (Pipelined Burst SRAM)............................................................................................................................... 102
PC-100 DIMM ............................................................................................................................................................. 103
PC-133 DIMM ............................................................................................................................................................. 103
PC-1600 or PC-2100 or PC-2700 DDR DRAM ............................................................................................................ 103
PCI (Peripheral Component Interface) Bus ................................................................................................................. 103
PDF Format................................................................................................................................................................. 103
PnP (Plug and Play).................................................................................................................................................... 104
POST (Power-On Self Test) ........................................................................................................................................ 104
RDRAM (Rambus DRAM) ........................................................................................................................................... 104
RIMM (Rambus Inline Memory Module) ...................................................................................................................... 104
SDRAM (Synchronous DRAM) .................................................................................................................................... 105
Shadow E2PROM ........................................................................................................................................................ 105
SIMM (Single In Line Memory Module) ....................................................................................................................... 105
SMBus (System Management Bus) ............................................................................................................................. 105
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SPD (Serial Presence Detect)..................................................................................................................................... 106
Ultra DMA ................................................................................................................................................................... 106
USB (Universal Serial Bus) ......................................................................................................................................... 106
VCM (Virtual Channel Memory)................................................................................................................................... 107
ZIP file......................................................................................................................................................................... 107
Troubleshooting......................................................................................................................... 108
Technical Support ..................................................................................................................... 112
Product Registration ................................................................................................................. 115
How to Contact Us .................................................................................................................... 116
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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
©
1996-2002, 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
free download from Adobe web site
Although this Online Manual is optimized for screen viewing, it is still capable for hardcopy printing, you can print it by A4 paper
size and set 2 pages per A4 sheet on your printer. To do so, choose File > Page Setup and follow the instruction of your printer
driver.
Thanks for the help of saving our earth.
, we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD or you can get
.
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OOvveerrvviieeww
Thank you for choosing AOpen AX4GER / AX4GER-N motherboard. The AX4GER / AX4GER-N is Intel® Socket 478
motherboard (M/B) based on the ATX form factor featuring the Intel® 845GE chipset
M/B, the AX4GER / AX4GER-N motherboard can support Intel
clock. In the AGP performance, it has one 1.5V AGP interface with 4x SBA/Data Transfer and 2x/4x Fast Write capability and
pipelined spilt-transaction long burst transfer up to 1056MB/sec. According to different customer’s requirements, the Intel
845GE chipset memory interface supports DDR333/266 SDRAM devices with densities of 64, 128, 256, 512Mb DDR SDRAM
DIMM modules and the maximum memory size can be up to 2GB. The onboard IDE controller supports Ultra DMA
mode and the transfer rate up to 100MB/s. Further flexibility can be
achieved by taking advantage of the Communication and Network Riser
(CNR) card option that allows audio, modem configuration on a
single baseboard design. More than that, on the strength of
RealTek RTL8100BL controller on board, which is a
highly-integrated Platform LAN Connect device, it provides
10/100M bps Ethernet for office and home use. Besides, the
AX4GER / AX4GER-N has an AC97
providing high performance and magic surround stereo
sound to let people enjoy working with it. Now, let’s enjoy
all features from AOpen AX4GER / AX4GER-N
motherboard.
®
Socket 478 Pentium® 4 and 400/533 MHz Front Side Bus (FSB)
CODEC chipset onboard,
. As high performance chipset built in the
33/66/100
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CPU
Supports Intel® Socket 478 Pentium® 4 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.
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Expansion Slots
Including six 32-bit/33MHz PCI, one CNR and one AGP 4X slots. The PCI local bus throughput can be up to 132MB/s. The
Communication & Nectworking Riser (CNR)
Modem/Audio card. For AGP performance, it has one 1.5V AGP interface with 4x SBA/Data Transfer and 2x/4x Fast Write
capability and pipelined spilt-transaction long burst transfer up to 1056MB/sec. For AD and SBA signaling, AX4GER /
AX4GER-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. However, if you enable onboard LAN or insert CNR LAN card, the 6th PCI
slot will become a slave PCI slot.
slot provided from AX4GER / AX4GER-N can support CNR interface for a
Memory
Provides three 184-pin DDR SDRAM DIMM sockets that support up to 2GB of DDR333/266 compliant DDR SDRAM
(Synchronous Dynamic Random Access Memory) (Please note that only CPU FSB 533MHz supports DDR333). You may install
64, 128, 256, 512Mb DDR SDRAM DIMM modules into each socket.
LAN Port (For AX4GER-N)
On the strength of RealTek RTL8100BL controller on board, which is a highly-integrated Platform LAN Connect device, it
provides 10/100 Mbps Ethernet for office and home use.
Ultra DMA 33/66/100 Bus Master IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels,
supports Ultra DMA
33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5, and supports Enhanced IDE devices.
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On-board AC’97 Sound
AX4GER / AX4GER-N 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 100~248 by 1MHz stepping adjustment, and lets your system can get maximum performance.
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset default settings in 4.8 seconds when you fail to system
overclocking.
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.
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Six USB2.0 Connectors
Provides three ports, six USB connectors for USB interface devices, such as mouse, keyboard, modem, scanner, etc. 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.
Dr. LED
The Dr. LED has 8 LEDs on this AX4GER / AX4GER-N 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 Plug-and-Play
making the system much user-friendlier.
Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor
module.
Super Multi-I/O
, which helps save users from configuration problems, thus
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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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JP13 LAN Jumpe
Front Audio Connecto
Onboard AC’97 CODEC
Black: CD-IN Connector
JP28 Keyboard/Mouse
32-bit PCI Expansion Slot x6
Case Open Connecto
Front Panel Connecto
JP14 CMOS Clear Jumper
4Mbit Flash ROM BIOS
S/PDIF Connecto
-
Wakeup Jumpe
CNR Expansion Slot
COM2 Connecto
IrDA Connecto
WOL Connecto
Dr. LED Connecto
FAN3 Connecto
USB2.0 Connecto
JP1 Buzzer Jum
WOM Connecto
er
Motherboard Map
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PC99 Colored Back Panel
RealTek RTL8100BL (For
X4GER-N)
4-pin 12V ATX Power
Connecto
Low ESR Capacitors
SYSFAN2 Connector
GP Slot (For 1.5V AGP
card or ADD card)
478-pin CPU socket with
Voltage and Frequency
uto-detection that
support Intel
Intel®845GE chipset
CPUFAN1 Connector
184-pin DIMMx3 supports
DDR333/DDR266 Max. to
2GB
TA/33/66/100
IDE Connector x2
TX Power Connector
FDD Connector
®
Pentium® 4
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Socket 478
Intel
Pentium 4
CPU
AGP 4X Slot
400/533MHz
System Bus
LAN Connect Component
Floppy Disk Drive x2
DDR 266/333 SDRAM
Up to 2GB
DIMM Socket x3
Intel 845GE
USB Port x6
PCI Bus
Realtek
RTL810 0BL
1stUSB Port
2ndUSB Port
3rdUSB Port
32-bit PCI Slot x6
ATA
33/66/100
Primary
Channel
Secondary
Channel
Intel ICH4
Low Pin
Count
Super
I/O
AC97
CODEC
AC Link
Firmware Hub
4Mbit Flash EEPROM
Parallel Port
Serial Port x2
IDE D rive x4
CNR Slot
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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: www.aopen.com
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 pin 1 & pin2.
5. Connect ATX power cable back to connector PWR2.
Normal Operation
Pin 1
1
(default)
1
Clear CMOS
Tip: When should I Clear CMOS?
1. Boot fail because of overclocking…
2. Forget password…
3. Troubleshooting…
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This motherboard supports Intel® Pentium 4 Socket 478 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.
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.
Note: These pictures are for example only; it may not exactly be the same motherboard.
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 exactly be the same motherboard.
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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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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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
designs are eliminated. 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
Intel® Socket 478
Pentium 4 CPU
CPU VID signal
Power Regulator
(Automatically generates CPU voltage)
CPU voltage
Clock
Generator
CPU Freq. Ratio
BIOS
Controlled
Circuit
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AAOOppeenn ““WWaattcchh DDoogg TTiimmeerr””
With this motherboard, AOpen provides a very special, useful feature for overclockers. When you
power-on the system, the BIOS will check last system POST
enable “Watch Dog Timer” function immediately, and set the CPU FSB
that 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 higher system performance, and without removing
the cover of system housing to set the jumper to clear CMOS data when your system hanged.
AOpen
Watch Dog
Timer
Enable/Disable Signal
from BIOS
Countdown about
5 seconds if fails
in POST
Reset Signal
Clock Generator
status. If it succeeded, the BIOS will
frequency by user’s setting
BIOS
CPU ID Signal
CPU
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This function is dedicated to overclockers and supports Adjustable CPU Core Voltage from 1.10V to 1.85V. 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
8x, 9x, 10x,…22x, 23x, 24x
100~248MHz
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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
Warning: Intel® 845GE chipset
supports maximum 400/533MHz
(100/133MHz*4) system bus and
66MHz AGP clock; higher clock
setting may cause serious system
damage.
28
Willamette
CPU
Pentium 4
1.5G
Pentium 4
1.6G
Pentium 4
1.7G
Pentium 4
1.8G
Pentium 4
1.9G
Pentium 4
2.0G
Celeron
CPU
1.7G 1700MHz 100MHz 400MHz 17x
1.8G 1800MHz 100MHz 400MHz 18x
CPU Core
Frequency
1500MHz 100MHz 400MHz 15x
1600MHz 100MHz 400MHz 16x
1700MHz 100MHz 400MHz 17x
1800MHz 100MHz 400MHz 18x
1900MHz 100MHz 400MHz 19x
2000MHz 100MHz 400MHz 20x
CPU Core
Frequency
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.
FSB
Clock
FSB
Clock
System
Bus
System
Bus
Ratio
Ratio
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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 connector.
SYSFAN2 Connector
CPUFAN1 Connector
GND
+12V
SENSOR
SENSOR
+12V
GND
SYSFAN3 Connector
GND
+12V
SENSOR
Note: Some CPU fans do not have
sensor pin, so that they cannot
support hardware monitoring function.
29
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This motherboard provides 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 installed. The factory default setting is set to
“Disable”(1-2), and you may enable this function by setting the jumper to 2-3.
Pin1
JP28
KB/Mouse Wake-up
1
Disable
(Default)
Enable
30
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