AOpen MX46U2-VN Setup guide

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Overview
Hardware
Installation
Drivers &
Utilities
AWARD
BIOS Setup
Glossary
Troubleshooting &
Technical Support
MX46U2-VN
DOC. NO.: MX46U2VN-OL-E0303A

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Wh ha at t’ ’s s i in n t th hi is s m ma an nu ua al l
MX46U2-VN.................................................................................................................................................1
What’s in this manual .................................................................................................................................................................... 2
You Must Notice ............................................................................................................................................................................ 7
Before You Start ............................................................................................................................................................................ 8
Overview ....................................................................................................................................................................................... 9
Feature Highlight ......................................................................................................................................................................... 10
Quick Installation Procedure ....................................................................................................................................................... 13
Motherboard Map ........................................................................................................................................................................ 14
Block Diagram ............................................................................................................................................................................. 15
Hardware Installation ............................................................................................................................16
About “User Upgrade Optional” and “Manufacture Upgrade Optional”… ................................................................................... 17
JP14 Clear CMOS Data .............................................................................................................................................................. 18
CPU Installation........................................................................................................................................................................... 19
CPU Jumper-less Design ............................................................................................................................................................ 22
AOpen “Watch Dog ABS” ............................................................................................................................................................ 23
Setting CPU Frequency............................................................................................................................................................... 24
CPU and System Fan Connector (with H/W Monitoring) ............................................................................................................ 26
JP28 Keyboard/Mouse Wake-up Jumper.................................................................................................................................... 27

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DIMM Sockets ............................................................................................................................................................................. 28
Front Panel Connector ................................................................................................................................................................ 30
ATX Power Connector................................................................................................................................................................. 31
AC Power Auto Recovery............................................................................................................................................................ 31
IDE and Floppy Connector .......................................................................................................................................................... 32
ATA/133 Supported ..................................................................................................................................................................... 34
IrDA Connector............................................................................................................................................................................ 35
Support 10/100 Mbps LAN onboard............................................................................................................................................ 36
PC99 Color Coded Back Panel ................................................................................................................................................... 37
Support USB 2.0 Ports ................................................................................................................................................................ 38
CD Audio Connector.................................................................................................................................................................... 39
Front Audio Connector ................................................................................................................................................................ 40
Battery-less and Long Life Design .............................................................................................................................................. 41
Over-current Protection ............................................................................................................................................................... 42
Hardware Monitoring ................................................................................................................................................................... 43
Resetable Fuse ........................................................................................................................................................................... 44
Low ESR Capacitor ..................................................................................................................................................................... 45
Layout (Frequency Isolation Wall)............................................................................................................................................... 46
Enlarged Aluminum Heatsink ...................................................................................................................................................... 47

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Vivid BIOS technology................................................................................................................................................................. 48
Driver and Utility ....................................................................................................................................49
Auto-run Menu from Bonus CD ................................................................................................................................................... 50
Installing VGA Driver ................................................................................................................................................................... 51
Installing AGP Driver ................................................................................................................................................................... 52
Installing Audio Driver.................................................................................................................................................................. 53
Installing IDE Driver..................................................................................................................................................................... 54
Installing LAN Driver.................................................................................................................................................................... 55
Installing USB2.0 Driver .............................................................................................................................................................. 57
AOConfig Utility ........................................................................................................................................................................... 58
ACPI Suspend to Hard Drive....................................................................................................................................................... 60
ACPI Suspend to RAM (STR) ..................................................................................................................................................... 64
AWARD BIOS ..........................................................................................................................................66
How To Use Award™ BIOS Setup Program................................................................................................................................ 67
How To Enter BIOS Setup........................................................................................................................................................... 69
BIOS Upgrade under Windows environment .............................................................................................................................. 70
Glossary .................................................................................................................................................72
AC97 CODEC ............................................................................................................................................................................. 72
ACPI (Advanced Configuration & Power Interface)..................................................................................................................... 72

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ACR (Advanced Communication Riser) ...................................................................................................................................... 72
AGP (Accelerated Graphic Port) ................................................................................................................................................. 73
AMR (Audio/Modem Riser) ......................................................................................................................................................... 73
ATA (AT Attachment) ................................................................................................................................................................... 73
BIOS (Basic Input/Output System).............................................................................................................................................. 74
Bluetooth ..................................................................................................................................................................................... 74
CNR (Communication and Networking Riser)............................................................................................................................. 74
DDR (Double Data Rate) RAM.................................................................................................................................................... 75
ECC (Error Checking and Correction)......................................................................................................................................... 75
EEPROM (Electronic Erasable Programmable ROM) ................................................................................................................ 75
EPROM (Erasable Programmable ROM).................................................................................................................................... 75
EV6 Bus ...................................................................................................................................................................................... 76
FCC DoC (Declaration of Conformity)......................................................................................................................................... 76
FC-PGA (Flip Chip-Pin Grid Array).............................................................................................................................................. 76
FC-PGA2 (Flip Chip-Pin Grid Array)............................................................................................................................................ 76
Flash ROM .................................................................................................................................................................................. 76
Hyper Threading.......................................................................................................................................................................... 77
IEEE 1394 ................................................................................................................................................................................... 77
Parity Bit ...................................................................................................................................................................................... 77

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PCI (Peripheral Component Interface) Bus................................................................................................................................. 78
PDF Format................................................................................................................................................................................. 78
PnP (Plug and Play) .................................................................................................................................................................... 78
POST (Power-On Self Test) ........................................................................................................................................................ 78
PSB (Processor System Bus) Clock ........................................................................................................................................... 78
RDRAM (Rambus Dynamic Random Access Memory) .............................................................................................................. 79
RIMM (Rambus Inline Memory Module)...................................................................................................................................... 79
SDRAM (Synchronous DRAM) ................................................................................................................................................... 79
SATA (Serial ATA)........................................................................................................................................................................ 79
SMBus (System Management Bus) ............................................................................................................................................ 80
SPD (Serial Presence Detect)..................................................................................................................................................... 80
USB 2.0 (Universal Serial Bus) ................................................................................................................................................... 80
VCM (Virtual Channel Memory) .................................................................................................................................................. 80
Wireless LAN – 802.11b .............................................................................................................................................................. 81
ZIP file ......................................................................................................................................................................................... 81
Troubleshooting .....................................................................................................................................82
Technical Support..................................................................................................................................86
Product Registration..............................................................................................................................89
How to Contact Us.................................................................................................................................90

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Yo ou u M Mu us st t N No ot ti ic ce e
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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Be ef fo or re e Y Yo ou u S St ta ar rt t
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 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.

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Ov ve er rv vi ie ew w
Thank you for choosing AOpen MX46U2-VN motherboard. MX46U2-VN is Intel®Socket 478 motherboard (M/B) based on the micro-ATX
form factor featuring the SIS 650GX chipset. As high performance chipset built in the M/B, MX46U2-VN motherboard support Intel®Socket
478 Pentium®4 (Willamette / Northwood) and 400MHz Front Side Bus (FSB) clock. According to different customer’s requirements, this
motherboard supports DDR 200/266 RAM up to 2GB maximum. The onboard IDE controller supports Ultra DMA 33/66/100/133 mode and
the transfer rate is up to 133MB/s. More than that, on the strength of Realtek 8201BL PHY on board, which is a highly-integrated Platform
LAN Connect device, it provides 10/100M bps Ethernet for
office and home use. Besides, MX46U2-VN has an AC97
CODEC chipset onboard providing high performance
stereo sound to let people enjoy working with it. This
motherboard also supports USB 2.0 function with a fancy
speed up to 480Mbps. Now, let’s enjoy all features from
AOpen MX46U2-VN motherboard.

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Fe ea at tu ur re e H Hi ig gh hl li ig gh ht t
CPU
Supports Intel® Socket 478 Pentium®4 (Willamette / Northwood) 1.4GHz~2.4GHz+ with 400MHz Front Side Bus (FSB) designed for Socket
478 technology.
Chipset
This motherboard is equipped with SIS 650GX chipset. SIS 650 IGUI Host Memory Controller integrates a high performance host interface
for Intel Pentium 4 processor and a high performance 2D/3D Graphic Engine. The SIS 962L MuTIOL Media I/O integrates one Universal
Serial Bus 2.0 Host Controllers, the Audio Controller with AC97 Interface, three Universal Serial Bus 1.1 Host Controllers and the IDE
Master/Slave controllers. The PCI to LPC Bridge, I/O Advanced Programmable Interrupt Controller, legacy system I/O and legacy power
management functionalities are integrated as well.
Expansion Slots
Including three 32-bit/33MHz PCI slots. The PCI local bus throughput can be up to 132MB/s. 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 up to 2GB of DDR200 and DDR266 compliant SDRAM (Synchronous
Dynamic Random Access Memory).

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1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you to adjust CPU FSB frequency from
90~200MHz by 1MHz stepping adjustment, and helps your system get maximum performance.
WatchDog ABS
Includes AOpen “WatchDog ABS” function that can auto-reset default settings in 4.8 seconds when you fail to system overclocking.
LAN Port
On the strength of Realtek 8201BL PHY on board, which is a highly-integrated Platform LAN Connect device, it provides 10/100 Mbps
Ethernet for office and home use.
Ultra DMA 33/66/100/133 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 66/100/133, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5, and supports Enhanced IDE devices.
On-board AC’97 Sound
MX46U2-VN uses RealTek AC97 sound chip. This on-board audio includes a complete audio recording and playback system.

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Six USB 2.0 Ports
Provides four ports on the back panel, one connector on the board for USB 2.0 interface devices, such as mouse, keyboard, modem,
scanner, etc.
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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Qu ui ic ck k I In ns st ta al ll la at ti io on n P Pr ro oc ce ed du ur re e
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.
10.
11.
Reboot
Installing Operating System (such as Windows 98)
Installing Driver and Utility

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Motherboard Map
CD-IN Connecto
r
PC99 Colored Back Panel
SIS 650GX/962L Chipset
478-pin CPU socket
(Willamette/ Northwood)
with Voltage and Frequency
Auto-detection that supports
Intel®Pentium®4 1.4~2.4GHz+ CPU
4-pin 12V. ATX Power Connector
Low ESR Capacitors
SYSFAN2 connecto
r
Resetable Fuse
JP28 KB/Mouse Wakeup Jumper
2Mb Flash ROM BIOS
AC’97 CODEC
Front Audio Connector
Realtek RTL8201BL LAN Chip
SYSFAN3 Connecto
r
IrDA Connector
32-bit PCI Expansion Slot x3
USB 2.0 Connector
CPUFAN1 Connecto
r
Front Panel Connecto
r
184-pin DIMMx2 supports
DDR200/266 RAM
maximum up to 2GB
JP14 CMOS Clear Jumper
ATA100/133 IDE Connector x2 ATX Power Connector
FDC Connector

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SIS 650GX
Socket 478
Intel Pentium 4
CPU(Willamette
/Northwood)
400MHz System
Bus
DIMM Socket x2
SIS 962L
Serial Port
USB Port
USB Port x6
32-bit PCI Slot x3
Parallel Port
IDE Drive x4
ATA
66/100/133
DDR 200/266 SDRAM
Up to 2GB
Primary
Channel
Secondary
Channel
2Mbit Flash EEPROM
PCI Bus
iTE
IT8705F
Floppy Disk Drive x2
RealTek
AC97
CODEC
Realtek
RTL8201BL
LAN connect Component
USB Port
USB Port
B
Bl lo oc ck k D Di ia ag gr ra am m

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Ha ar rd dw wa ar re e I In ns st ta al ll la at ti io on n
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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Ab bo ou ut t “ “U Us se er r U Up pg gr ra ad de e O Op pt ti io on na al l” ” a an nd d “ “M Ma an nu uf fa ac ct tu ur re e U Up pg gr ra ad de e O Op pt ti io on na al l” ”… …
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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JP P1 14 4 C Cl le ea ar r C CM MO OS S D Da at ta a
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
Tip: When should I Clear CMOS?
1. Boot fails because of overclocking…
2. Forget password…
3. Troubleshooting…
Normal
(
default
)
Clear CMOS

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This motherboard supports Intel®Pentium 4 Socket 478 series CPU (Willamette / Northwood). Be careful of CPU orientation when you plug
it into CPU socket.
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.
1. Pull up the CPU socket lever and
up to 90-degree angle.
CPU pin 1 and
cut edge
CPU socket
Lever
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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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
ma
y
dama
g
e 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.