MX4GVR |
OOnnlliinnee MMaannuuaall |
MX4GVR
DOC. NO.: MX4GVR-OL-E0208A
1
& Troubleshooting Glossary AWARD & Drivers Hardware Overview
Support Technical Setup BIOS Utilities Installation
MX4GVR |
OOnnlliinnee MMaannuuaall |
What’s in this manual |
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MX4GVR ........................................................................................................................................... |
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 |
AOpen “Watch Dog Timer” ............................................................................................................................................ |
26 |
CPU and System Fan Connector (with H/W Monitoring) ............................................................................................... |
29 |
DIMM Sockets ............................................................................................................................................................... |
30 |
Front Panel Connector .................................................................................................................................................. |
32 |
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ATX Power Connector ................................................................................................................................................... |
33 |
AC Power Auto Recovery .............................................................................................................................................. |
33 |
STBY LED and BOOT LED ........................................................................................................................................... |
34 |
IDE and Floppy Connector ............................................................................................................................................ |
35 |
IrDA Connector ............................................................................................................................................................. |
37 |
ADD (AGP Digital Display) Slot ..................................................................................................................................... |
38 |
WOL (Wake on LAN) ..................................................................................................................................................... |
39 |
CNR (Communication and Network Riser) Expansion Slot............................................................................................ |
41 |
Support 10/100 Mbps LAN onboard .............................................................................................................................. |
42 |
JP27 / JP28 USB Keyboard/Mouse Wake-up Jumper ................................................................................................... |
43 |
PC99 Color Coded Back Panel ..................................................................................................................................... |
44 |
Support 2nd USB 2.0 Ports............................................................................................................................................. |
45 |
Chassis Intrusion Sensor Connector ............................................................................................................................. |
46 |
CD Audio Connector ..................................................................................................................................................... |
47 |
AUX-IN Connector......................................................................................................................................................... |
48 |
COM2 Connector .......................................................................................................................................................... |
49 |
Front Audio Connector .................................................................................................................................................. |
50 |
S/PDIF (Sony/Philips Digital Interface) Connector......................................................................................................... |
51 |
Super 5.1 Channel Audio Effect .................................................................................................................................... |
52 |
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MX4GVR |
OOnnlliinnee MMaannuuaall |
Battery-less and Long Life Design................................................................................................................................. |
53 |
CPU Over-current Protection......................................................................................................................................... |
54 |
Hardware Monitoring ..................................................................................................................................................... |
55 |
AOConfig Utility............................................................................................................................................................. |
56 |
Resetable Fuse ............................................................................................................................................................. |
58 |
Low ESR Capacitor ....................................................................................................................................................... |
59 |
Layout (Frequency Isolation Wall) ................................................................................................................................. |
61 |
Enlarged Aluminum Heatsink ........................................................................................................................................ |
62 |
Open JukeBox Player.................................................................................................................................................... |
63 |
Vivid BIOS technology................................................................................................................................................... |
67 |
Driver and Utility .......................................................................................................................... |
68 |
Auto-run Menu from Bonus CD ..................................................................................................................................... |
69 |
Installing Intel® Chipset Software Installation Utility...................................................................................................... |
70 |
Installing Intel IAA Driver............................................................................................................................................... |
71 |
Installing Intel 845GV VGA Driver ................................................................................................................................. |
72 |
Installing Onboard Sound Driver ................................................................................................................................... |
76 |
Installing USB2.0 Driver ................................................................................................................................................ |
77 |
Installing Hardware Monitoring Utility III ........................................................................................................................ |
80 |
PHOENIX-AWARD BIOS................................................................................................................. |
81 |
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MX4GVR |
O O n n l l i i n n e e MMaannuuaall |
About Phoenix-Award BIOS Function Description…...................................................................................................... 82 |
|
How To Use Phoenix-Award™ BIOS Setup Program |
..................................................................................................... 83 |
How To Enter BIOS Setup ............................................................................................................................................. |
85 |
BIOS Upgrade under Windows environment ................................................................................................................. |
86 |
Overclocking................................................................................................................................. |
88 |
VGA Card & Hard Disk .................................................................................................................................................. |
89 |
Glossary ....................................................................................................................................... |
90 |
AC97 ............................................................................................................................................................................. |
90 |
ACPI (Advanced Configuration & Power Interface) ....................................................................................................... |
90 |
AGP (Accelerated Graphic Port).................................................................................................................................... |
90 |
AMR (Audio/Modem Riser)............................................................................................................................................ |
91 |
AOpen Bonus Pack CD ................................................................................................................................................. |
91 |
APM (Advanced Power Management)........................................................................................................................... |
91 |
ATA (AT Attachment) ..................................................................................................................................................... |
91 |
ATA/66 .......................................................................................................................................................................... |
91 |
ATA/100 ........................................................................................................................................................................ |
92 |
ATA/133 ........................................................................................................................................................................ |
92 |
BIOS (Basic Input/Output System) ................................................................................................................................ |
92 |
Bus Master IDE (DMA mode) ........................................................................................................................................ |
92 |
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MX4GVR |
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CNR (Communication and Networking Riser)................................................................................................................ |
93 |
CODEC (Coding and Decoding) .................................................................................................................................... |
93 |
DDR (Double Data Rated) SDRAM ............................................................................................................................... |
93 |
DIMM (Dual In Line Memory Module) ............................................................................................................................ |
93 |
DMA (Direct Memory Access)........................................................................................................................................ |
94 |
ECC (Error Checking and Correction) ........................................................................................................................... |
94 |
EDO (Extended Data Output) Memory .......................................................................................................................... |
94 |
EEPROM (Electronic Erasable Programmable ROM).................................................................................................... |
94 |
EPROM (Erasable Programmable ROM)....................................................................................................................... |
94 |
EV6 Bus ........................................................................................................................................................................ |
95 |
FCC DoC (Declaration of Conformity) ........................................................................................................................... |
95 |
FC-PGA (Flip Chip-Pin Grid Array) ................................................................................................................................ |
95 |
Flash ROM .................................................................................................................................................................... |
95 |
FSB (Front Side Bus) Clock .......................................................................................................................................... |
96 |
I2C Bus .......................................................................................................................................................................... |
96 |
IEEE 1394 ..................................................................................................................................................................... |
96 |
Parity Bit ....................................................................................................................................................................... |
96 |
PBSRAM (Pipelined Burst SRAM)................................................................................................................................. |
97 |
PC-100 DIMM ............................................................................................................................................................... |
97 |
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MX4GVR |
OOnnlliinnee MMaannuuaall |
PC-133 DIMM ............................................................................................................................................................... |
97 |
PC-1600 / PC-2100/ PC-2700 / PC-3200 DDR DRAM................................................................................................... |
97 |
PCI (Peripheral Component Interface) Bus ................................................................................................................... |
98 |
PDF Format................................................................................................................................................................... |
98 |
PnP (Plug and Play) ...................................................................................................................................................... |
98 |
POST (Power-On Self Test) .......................................................................................................................................... |
98 |
RDRAM (Rambus DRAM) ............................................................................................................................................. |
99 |
RIMM (Rambus Inline Memory Module) ........................................................................................................................ |
99 |
SDRAM (Synchronous DRAM) ...................................................................................................................................... |
99 |
Shadow E2PROM .......................................................................................................................................................... |
99 |
SIMM (Single In Line Memory Module) ....................................................................................................................... |
100 |
SMBus (System Management Bus) ............................................................................................................................. |
100 |
SPD (Serial Presence Detect) ..................................................................................................................................... |
100 |
Ultra DMA ................................................................................................................................................................... |
101 |
USB (Universal Serial Bus) ......................................................................................................................................... |
101 |
VCM (Virtual Channel Memory)................................................................................................................................... |
102 |
ZIP file......................................................................................................................................................................... |
102 |
Troubleshooting........................................................................................................................... |
103 |
Technical Support ....................................................................................................................... |
107 |
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MX4GVR |
O O n n l l i i n n e e M M a a n n u u aall |
Product Registration |
...................................................................................................................110 |
How to Contact Us ...................................................................................................................... |
111 |
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MX4GVR |
OOnnlliinnee MMaannuuaall |
You Must Notice
Adobe, the Adobe logo, Acrobat is trademarks of Adobe Systems Incorporated.
AMD, the AMD logo, Athlon and Duron are trademarks of Advanced Micro Devices, Inc.
Intel, the Intel logo, Intel Celeron, Pentium II, Pentium III and Pentium 4 are trademarks of Intel Corporation.
Microsoft, Windows, and Windows logo are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
All product and brand names used on this manual are used for identification purposes only and may be the registered trademarks of their respective owners.
All of the specifications and information contained in this manual are subject to change without notice. AOpen reserves the right to revise this publication and to make reasonable changes. AOpen assumes no responsibility for any errors or inaccuracies that may appear in this manual, including the products and software described in it.
This documentation is protected by copyright law. All rights are reserved.
No part of this document may be used or reproduced in any form or by any means, or stored in a database or retrieval system without prior written permission from AOpen Corporation.
Copyright© 1996-2002, AOpen Inc. All Rights Reserved.
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MX4GVR |
OOnnlliinnee MMaannuuaall |
Before You Start
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, we recommend using Adobe Acrobat Reader 4.0 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.
10
MX4GVR OOnnlliinnee MMaannuuaall
Overview
Thank you for choosing AOpen MX4GVR motherboard. MX4GVR is Intel® Socket 478 motherboard (M/B) based on the micro-ATX form factor featuring the Intel 845GV chipsets. As high performance chipset built in the M/B, MX4GVR motherboard support Intel® Socket 478 Pentium® 4 (Willamette / Northwood) and 400/533 MHz Processor System Bus (PSB) clock. In the AGP performance, it has one ADD slot and supports two DVO ports, and the function of these two DVO ports is to support a variety of digital display devices. According to different customer’s requirements, this motherboard supports DDR266 (PC2100) SDRAM and DDR200 (PC1600) SDRAM up to 2GB maximum. The onboard IDE controller supports Ultra DMA
33/66/100 mode. More than that, on the strength of RealTek RTL8100BL LAN controller on board, which is an highly-integrated Platform LAN
Connect device, it provides 10/100M bps Ethernet for office and home use. Besides, MX4GVR has an AC97 CODEC 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 MX4GVR motherboard.
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Feature Highlight
CPU
Supports Intel® Socket 478 Pentium® 4 (Willamette / Northwood) 1.4GHz~2.8GHz+ with 400/533MHz Processor System Bus (PSB) designed for Socket 478 technology.
Chipset
The 845GV chipset contains two core components designed for the desktop platform: the 845GV 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 845GV 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 three 32-bit/33MHz PCI, one CNR and one ADD slot. The PCI local bus throughput can be up to 132MB/s. AGP Digital Display card is designed by Intel to multiplex the AGP signal interface with two DVO ports, and the function of these two DVO ports is to support a variety of digital display devices, such as LCDs and Digital-input CRT, and is possible to use in dual-channel mode to support higher resolution and refresh rate, while deliver digital signal from source to display to preserve signal integrity and the viewable image quality. Of three PCI slots provided, all of them are master PCI slots with arbitration and decoding for all integrated functions and LPC bus.
Memory
Provides two 184-pin DDR SDRAM DIMM sockets that support PC2100(DDR266) and PC1600(DDR200) compliant SDRAM (Synchronous Dynamic Random Access Memory) up to 2GB.
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you to adjust CPU PSB frequency from 100~248MHz by 1MHz stepping adjustment, and helps your system get maximum performance.
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LAN Port
On the strength of RealTek RTL8100BL LAN 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 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.
On-board AC’97 Sound
MX4GVR uses RealTek AC97 sound chip. This on-board audio includes a complete audio recording and playback system.
Four USB2.0 Connectors
Provides three ports, six USB connector, providing total 6 USB2.0 interface devices such as mouse, keyboard, modem, scanner, etc.
S/PDIF Connectors
S/PDIF (Sony/Philips Digital Interface) is the newest audio transfer format, which provides impressive quality through optical fiber and allows you to enjoy digital audio instead of analog audio.
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MX4GVR |
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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, which helps save users from configuration problems, thus 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.
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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Quick Installation Procedure
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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Online Manual
Motherboard Map
Front Audio Connector
AUX-IN Connector
CD-IN Connector
RealTek 8100BL
AC’97 CODEC
S/PDIF Connector
JP27 USBLAN Wakeup Jumper
CNR Connector
32-bit PCI Expansion Slot
IrDA Connector
BOOT LED
JP14 CMOS Clear
USB2.0 Connector
WOL Connector
SYSFAN3
4Mb Flash ROM BIOS
Chassis Intrusion Connector
Front Panel Connector
PC99 Colored Back Panel
JP28 USB/Keyboard/Mouse
Wakeup Enable/Disable
Resetable Fuse
COM2 Connector
SYSFAN2 Connector
4-pin 12V. ATX Power Connector
Low ESR Capacitors
ADD Slot
(For ADD card only)
478-pin CPU socket (Willamette/ Northwood) with Voltage and Frequency Auto-detection that supports Intel® Pentium® 4 1.4~2.4GHz+
Intel 845GV Chipset CPUFAN1 connector STBY LED
184-pin DIMMx2 supports DDR266/200 DDR SDRAM maximum up to 2GB
ATX Power Connector
ATA33/66/100 IDE Connector |
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FDD Connector |
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MX4GVR |
OOnnlliinnee MMaannuuaall |
Block Diagram
Socket 478
Intel Pentium 4
CPU(Willamette
/Northwood)
ADD Slot
PC-2100/1600 DDR
SDRAM Up to 2GB
DIMM Socket x2
400/533MHz System Bus
Intel 845GV
LAN connect Component
USB Port x6
Floppy Disk Drive x2
32-bit PCI Slot x3
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ATA 66/100 |
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Channel |
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IDE Drive x4 |
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Secondary |
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ICH4 |
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AC97 |
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RealTek |
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CODEC |
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RTL8100BL |
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USB Port |
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Winbond |
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W83627 |
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HF |
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USB Port |
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4Mbit Flash EEPROM |
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USB Port |
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Parallel Port |
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Serial Port x2 |
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MX4GVR |
OOnnlliinnee MMaannuuaall |
Hardware Installation
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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MX4GVR |
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About “Manufacturer Upgrade Optional” and ““UUsseerr UUppggrraaddee
Optional”…
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: english.aopen.com.tw for more detail information.
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MX4GVR |
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JP14 Clear CMOS Data
You can clear CMOS to restore system default setting. To clear CMOS, follow the procedure below.
1.Turn off the system and unplug the AC power.
2.Remove ATX power cable from connector PWR2.
3.Locate JP14 and short pins 2-3 for a few seconds.
4.Return JP14 to its normal setting by shorting pin 1 & pin 2.
5.Connect ATX power cable back to connector PWR2.
Pin 1 
1 |
1 |
Normal |
Clear |
(default) |
CMOS |
Tip: When should I Clear CMOS?
1.Boot fail because of overclocking…
2.Forget password…
3.Troubleshooting…
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MX4GVR |
OOnnlliinnee MMaannuuaall |
CPU Installation
This motherboard supports Intel® Pentium 4 Socket 478 series CPU (Willamette / Northwood). Be careful of CPU orientation when you plug it into CPU socket.
1.Pull up the CPU socket lever and up to 90-degree angle.
2.Locate Pin 1 in the socket and look for mark on the CPU upper interface. Match Pin 1 and cut edge, then insert the CPU into the socket.
CPU socket |
CPU pin 1 and |
Lever |
cut edge |
CPU cut edge
Note: Those pictures are for example only; they may not look the same with the motherboard you purchased.
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MX4GVR |
OOnnlliinnee MMaannuuaall |
3.Press down the CPU socket lever and finish CPU installation.
CPU cut edge
Note: If you do not match the CPU socket Pin 1 and CPU cut edge well, you may 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.
Note: This picture is for example only; it may not look the same with the motherboard you purchased.
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MX4GVR |
OOnnlliinnee MMaannuuaall |
CPU Fan Installation
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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MX4GVR |
OOnnlliinnee MMaannuuaall |
CPU Jumper-less Design
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.
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Clock Generator |
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Intel® Socket 478 |
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BIOS |
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Pentium 4 |
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Controlled |
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CPU Freq. Ratio |
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Circuit |
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CPU VID signal |
CPU voltage |
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Power Regulator
(Automatically generates CPU voltage)
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MX4GVR |
OOnnlliinnee MMaannuuaall |
AOpen “Watch Dog Timer”
AOpen provides a special and useful feature on this motherboard for overclockers. When you power-on the system, the BIOS will check last system POST status. If it succeeded, the BIOS will enable “Watch Dog Timer” function immediately, and set the CPU PSB frequency according to 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
Timer
Enable/Disable Signal
from BIOS
BIOS
Reset Signal
Clock Generator |
CPU ID Signal |
Countdown about 5 seconds if fails in POST
CPU
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MX4GVR |
OOnnlliinnee MMaannuuaall |
Setting CPU Frequency
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 PSB from "CPU Host/SDRAM/PCI Clock" for overclocking.
Core Frequency = CPU PSB Clock * CPU Ratio
PCI Clock = CPU PSB Clock / Clock Ratio
AGP Clock = PCI Clock x 2
CPU Ratio |
8x, 10x… 21x, 22x, 23x, 24x |
CPU FSB (By BIOS table) |
100 and 133 MHz |
Tip: If your system hangs or fails to boot Home 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 again.
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MX4GVR
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Northwood CPU |
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CPU Core |
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FSB Clock |
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System Bus |
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Ratio |
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Frequency |
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Pentium 4 |
1.6G |
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1600MHz |
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100MHz |
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400MHz |
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16x |
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Pentium 4 |
1.6G |
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1600MHz |
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133MHz |
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533MHz |
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12x |
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Pentium 4 |
1.7G |
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1700MHz |
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133MHz |
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533MHz |
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13x |
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Pentium 4 |
1.8G |
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1800MHz |
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100MHz |
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400MHz |
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18x |
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Pentium 4 |
2.0G |
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2000MHz |
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100MHz |
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400MHz |
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20x |
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Pentium 4 |
2.2G |
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2200MHz |
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100MHz |
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400MHz |
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22x |
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Pentium 4 |
2.26G |
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2260MHz |
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133MHz |
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533MHz |
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17x |
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Pentium 4 |
2.4G |
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2400MHz |
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100MHz |
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400MHz |
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24x |
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Pentium 4 |
2.4G |
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2400MHz |
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133MHz |
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533MHz |
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18x |
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Pentium 4 |
2.53G |
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2530MHz |
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133MHz |
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533MHz |
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19x |
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Pentium 4 |
2.66G |
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2660MHz |
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133MHz |
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533MHz |
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20x |
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Pentium 4 |
2.80G |
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2800MHz |
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133MHz |
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533MHz |
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21x |
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Willamette CPU |
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CPU Core |
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FSB Clock |
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System Bus |
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Ratio |
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Frequency |
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Pentium 4 |
1.8G |
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1800MHz |
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100MHz |
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400MHz |
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18x |
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Pentium 4 |
1.9G |
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1900MHz |
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100MHz |
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400MHz |
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19x |
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Pentium 4 |
2.0G |
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2000MHz |
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100MHz |
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400MHz |
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20x |
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Celeron CPU |
CPU Core Frequency |
FSB Clock |
System Bus |
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1.7G |
1700MHz |
100MHz |
400MHz |
17x |
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1.8G |
1800MHz |
100MHz |
400MHz |
18x |
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OOnnlliinnee MMaannuuaall
Warning: Intel 845GV chipset supports maximum 400MHz (100MHz*4) / 533MHz (133MHz*4) system bus and 66MHz AGP clock; higher clock setting may cause serious system damage.
Note: Since the latest processor, Northwood, would detect the clock ratio automatically, you may not be able to adjust the clock ratio in BIOS manually.
28
MX4GVR |
OOnnlliinnee MMaannuuaall |
CPU and System Fan Connector (with H/W Moonniittoorriinngg))
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 
GND +12V SENSOR
GND
+12V
SENSOR
Note: Some CPU fans do not have sensor pin, so that they cannot support hardware monitoring function.
SYSFAN3 Connector
29
MX4GVR |
OOnnlliinnee MMaannuuaall |
DIMM Sockets
This motherboard has two 184-pin DDR DIMM sockets that allow you to install PC2100 (DDR266) memory or PC1600 (DDR200) memory up to 2GB.
DIMM1
DIMM2
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