AOpen MX4BR-533 Setup guide

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Overview
Hardware
Installation
Drivers &
Utilities
AWARD
BIOS Setup
Glossary
Troubleshooting &
Technical Support
MX4BR-533
DOC. NO.: MX4BR533-OL-E0203A

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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
MX4BR-533...........................................................................................................................................1
What’s in this manual......................................................................................................................................................2
You Must Notice..............................................................................................................................................................8
Before You Start..............................................................................................................................................................9
Overview.......................................................................................................................................................................10
Feature Highlight........................................................................................................................................................... 11
Quick Installation Procedure .........................................................................................................................................15
Motherboard Map..........................................................................................................................................................16
Block Diagram...............................................................................................................................................................17
Hardware Installation......................................................................................................................18
About “Optional” and “Upgrade Optional”… ..................................................................................................................19
JP14 Clear CMOS Data ................................................................................................................................................20
CPU Installation ............................................................................................................................................................21
CPU Jumper-less Design ..............................................................................................................................................24
Full-range Adjustable CPU Core Voltage.......................................................................................................................26
CPU and System Fan Connector (with H/W Monitoring) ...............................................................................................28
DIMM Sockets...............................................................................................................................................................29
Front Panel Connector..................................................................................................................................................31

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ATX Power Connector...................................................................................................................................................32
AC Power Auto Recovery..............................................................................................................................................32
IDE and Floppy Connector............................................................................................................................................33
JP28 Keyboard/Mouse Wake-up Enable/Disable Jumper..............................................................................................35
IrDA Connector .............................................................................................................................................................36
AGP (Accelerated Graphic Port) Expansion Slot...........................................................................................................37
AGP Protection Technology...........................................................................................................................................38
Support 10/100 Mbps LAN onboard ..............................................................................................................................39
WOL (Wake on LAN).....................................................................................................................................................40
CNR (Communication and Network Riser) Expansion Slot............................................................................................42
PC99 Color Coded Back Panel .....................................................................................................................................43
Support USB2.0 Port.....................................................................................................................................................44
Chassis Intrusion Connector.........................................................................................................................................45
CD Audio Connector .....................................................................................................................................................46
Modem Audio Connector...............................................................................................................................................47
Front Audio Connector ..................................................................................................................................................48
S/PDIF (Sony/Philips Digital Interface) Connector.........................................................................................................49
Dr. LED Connector........................................................................................................................................................50
Battery-less and Long Life Design ................................................................................................................................52

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Over-current Protection.................................................................................................................................................53
Hardware Monitoring.....................................................................................................................................................54
Resettable Fuse............................................................................................................................................................55
2200µF Low ESR Capacitor..........................................................................................................................................56
Layout (Frequency Isolation Wall).................................................................................................................................58
Pure Aluminum Heatsink...............................................................................................................................................59
Driver and Utility .............................................................................................................................60
Auto-run Menu from Bonus CD Disc .............................................................................................................................61
Installing Intel® Chipset Software Installation Utility......................................................................................................62
Installing Intel IAA Driver...............................................................................................................................................63
Installing LAN Driver .....................................................................................................................................................64
Installing Onboard Sound Driver ...................................................................................................................................67
Installing USB2.0 Driver................................................................................................................................................68
Installing Hardware Monitoring Utility............................................................................................................................70
ACPI Suspend to Hard Drive.........................................................................................................................................71
ACPI Suspend to RAM (STR)........................................................................................................................................75
AWARD BIOS....................................................................................................................................77
About BIOS Function Description… ..............................................................................................................................78
How To Use Award™ BIOS Setup Program ..................................................................................................................79

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How To Enter BIOS Setup.............................................................................................................................................81
BIOS Upgrade...............................................................................................................................................................82
Overclocking....................................................................................................................................84
VGA Card & Hard Disk..................................................................................................................................................85
Glossary...........................................................................................................................................86
AC97.............................................................................................................................................................................86
ACPI (Advanced Configuration & Power Interface) .......................................................................................................86
AGP (Accelerated Graphic Port) ...................................................................................................................................86
AMR (Audio/Modem Riser)............................................................................................................................................87
AOpen Bonus Pack CD.................................................................................................................................................87
APM (Advanced Power Management)...........................................................................................................................87
ATA (AT Attachment) .....................................................................................................................................................87
ATA/66 ..........................................................................................................................................................................87
ATA/100 ........................................................................................................................................................................88
BIOS (Basic Input/Output System)................................................................................................................................88
Bus Master IDE (DMA mode) ........................................................................................................................................88
CNR (Communication and Networking Riser)................................................................................................................88
CODEC (Coding and Decoding)....................................................................................................................................89
DDR (Double Data Rated) SDRAM ...............................................................................................................................89

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DIMM (Dual In Line Memory Module)............................................................................................................................89
DMA (Direct Memory Access)........................................................................................................................................89
ECC (Error Checking and Correction)...........................................................................................................................90
EDO (Extended Data Output) Memory ..........................................................................................................................90
EEPROM (Electronic Erasable Programmable ROM)....................................................................................................90
EPROM (Erasable Programmable ROM) ......................................................................................................................90
EV6 Bus........................................................................................................................................................................91
FCC DoC (Declaration of Conformity)...........................................................................................................................91
FC-PGA (Flip Chip-Pin Grid Array)................................................................................................................................91
Flash ROM....................................................................................................................................................................91
FSB (Front Side Bus) Clock ..........................................................................................................................................92
I2C Bus..........................................................................................................................................................................92
IEEE 1394.....................................................................................................................................................................92
Parity Bit .......................................................................................................................................................................92
PBSRAM (Pipelined Burst SRAM).................................................................................................................................93
PC-100 DIMM ...............................................................................................................................................................93
PC-133 DIMM ...............................................................................................................................................................93
PC-1600 or PC-2100 DDR DRAM.................................................................................................................................93
PCI (Peripheral Component Interface) Bus ...................................................................................................................93

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PDF Format...................................................................................................................................................................94
PnP (Plug and Play)......................................................................................................................................................94
POST (Power-On Self Test) ..........................................................................................................................................94
RDRAM (Rambus DRAM) .............................................................................................................................................94
RIMM (Rambus Inline Memory Module) ........................................................................................................................95
SDRAM (Synchronous DRAM)......................................................................................................................................95
Shadow E2PROM..........................................................................................................................................................95
SIMM (Single In Line Memory Module) .........................................................................................................................95
SMBus (System Management Bus)...............................................................................................................................96
SPD (Serial Presence Detect).......................................................................................................................................96
Ultra DMA .....................................................................................................................................................................96
USB (Universal Serial Bus) ...........................................................................................................................................97
VCM (Virtual Channel Memory).....................................................................................................................................97
ZIP file...........................................................................................................................................................................97
Troubleshooting...............................................................................................................................98
Technical Support .........................................................................................................................102
Product Registration .....................................................................................................................105
How to Contact Us ........................................................................................................................106

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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 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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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 4.0 for online viewing, it is included in Bonus CD disc 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 MX4BR-533 motherboard. MX4BR-533 is Intel®Socket 478 motherboard (M/B) based on the Micro
ATX form factor featuring the Intel®845E (Brookdale) chipset. As high performance chipset built in the M/B, the MX4BR-533
motherboard can support Intel®Socket 478 Pentium®4 (Willamette / Northwood) 400 MHz / 533 MHz Front Side Bus (FSB) clock.
In the AGP performance, it has one AGP slot and supports AGP 4X mode and pipelined spilt-transaction long burst transfer up to
1056MB/sec. According to different customer’s requirements, this motherboard supports DDR200 (PC1600) SDRAM and DDR266
(PC2100) SDRAM up to 2GB maximum. The onboard IDE controller supports Ultra DMA 33/66/100 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, and/or LAN configuration on a single baseboard
design. More than that, on the strength of Realtek LAN on board, which
is a highly-integrated Platform LAN Connect device, it provides
10/100M bps Ethernet for office and home use. Besides,
MX4BR-533 has a S/PDIF connector and 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 MX4BR-533 motherboard.

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F
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 / 533MHz Front Side Bus (FSB)
designed for Socket 478 technology.
Chipset
With Intel®845E (Brookdale) chipset is designed for use with the Intel Pentium 4 processor and Northwood processor in the
478-pin package. The Intel 845E chipset Memory Controller Hub (MCH) component provides the processor interface, DRAM
interface, AGP interface, and Hub Interface in an Intel 845E desktop platform. It is optimized for the Intel Pentium 4 processor
and Northwood processor, supporting a single channel of DDR 200/266. Besides, it also supports the second generation I/O
Controller Hub (Intel ICH4) to provide the features required by a desktop platform.
Expansion Slots
Including three 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) slot provided from MX4BR-533 can support CNR interface for a Modem/Audio card.
The Accelerated Graphics Port (AGP) specification provides a new level of video display sophistication and speed. The AGP video
cards support data transfer rate up to 1056MB/s. MX4BR-533 motherboard includes one AGP expansion slot for a bus mastering
AGP graphic card. For AD and SBA signaling, MX4BR-533 motherboard can support 4X mode. Of three PCI slots provided, all of
them are master PCI slots with arbitration and decoding for all integrated functions and LPC bus.

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Memory
Provides two 184-pin DDR SDRAM DIMM sockets that support up to 2GB of PC-200/266 compliant DDR SDRAM (Double Date
Rate, Synchronous Dynamic Random Access Memory). You may install 64, 128, 256, 512mb and 1GB DDR SDRAM DIMM
modules into each socket.
LAN Port
On the strength of Realtek LAN 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 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.
On-board AC’97 Sound
MX4BR-533 uses the RealTek AC97 sound chip. This on-board audio includes a complete audio recording and playback system.
1MHz Stepping CPU Frequency Adjustment
Provides “1MHz Stepping CPU Frequency Adjustment” function in the BIOS. This magic function allows you to adjust CPU FSB
frequency from 100~248MHz by 1MHz stepping adjustment, and helps your system get maximum performance.

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Six USB2.0 Connectors
There are two connectors on the back panel and two USB headers on the board, providing you a total of six USB ports for USB
interface devices, such as mouse, keyboard, modem, scanner, etc. All six USB ports support USB2.0 with a faster speed of data
transmission than the traditional USB.
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.
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
Dr. LED
Connecting Dr. LED you can easily diagnose the possible problem occurred through 8 LED lights.
AGP Protection Technology
With AGP Protection Technology implemented, this motherboard will automatically detect the voltage of AGP card and prevent your
chipsets from being burnt out.

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Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor
module.
Power Management/Plug and Play
Supports the power management function that conforms to the power-saving standards of the U.S. Environmental Protection
Agency (EPA) Energy Star program. It also offers Plug-and-Play, helping save users from configuration problems and makes the
system user-friendly.
Enhanced ACPI
Fully implement the ACPI standard for Windows®98/ME/2000 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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Q
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. Reboot
10. Installing Operating System (such as Windows 98)
11. Installing Driver and Utility

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Motherboard Map
PC99 Colored Back Panel
Resettable Fuse
JP14 CMOS Clear Jumper
MODEM-CN Connecto
r
Realtek RTL8100BL LAN Chi
p
CNR Expansion Slot
Front Audio Connecto
r
IrDA Connecto
r
Front Panel Connecto
r
FAN3 Connecto
r
USB2.0 Connecto
r
2Mbit Programmable Flash ROM
ATA/33/66/100 IDE
Connector x2
FDD Connecto
r
184-pin DDR DIMM Socket x2
supports PC-200/266 DDR
SDRAM maximum up to 2 GB
A
TX Power Connecto
r
Intel®845E chipset with MCH,
ICH4 that supports LAN, Ultra
A
TA/100, SDRAM Solution
478-pin CPU socket with Voltage
and Frequency Auto-detection that
support Intel®Pentium®4
1.4~2.4GHz+ CPU
AGP 4x Ex
p
ansion Slot
32-bit PCI Expansion Slot x3 4-pin 12V. ATX Power Connecto
r
Low ESR Capacitors
Realtek ALC201A AC’97 CODEC
FAN2 Connecto
r
JP28 USB KB/Mouse Wakeup
Jum
p
e
r
CD-IN Connecto
r
WOL Connecto
r
Case Open Connecto
r
S/PDIF Connector
A
GP 1.5V Protection LED
5V Power Standby LED
Dr. LED Connector

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Intel 82845E
(Brookdale)
MCH
Socket 478
Intel
Pentium 4
CPU
400MHz System
Bus
DIMM Socket x2
AGP 4X Slot
Intel
82801DB
ICH4
Serial Port x2
2nd USB Port
1st USB Port
USB
Connector x6
32-bit PCI Slot x3
Parallel Port
IDE Drive x4
ATA
33/66100
PC-200/266 DDR
SDRAM Up to 2GB
Primary
Channel
Secondary
Channel
2Mbit Flash EEPROM
AC Link
PCI Bus
CNR Slot
Firmware Hub
Low Pin
Count
Super
I/O
Floppy Disk Drive x2
RealTek
ALC201A
Realtek
8100BL
LAN connect Component
3rd 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 “ “O Op pt ti io on na al l” ” a an nd d “ “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 find some of functions are called
“Optional”, and some are called “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 “Optional” for you
to choose. Some optional functions that can be upgraded by users, we call them “Upgrade Optional”. As for those optional
functions that can’t be upgraded by ourselves, we call them “Optional”. If needed, you can contact our local distributors or resellers
for purchasing “Upgrade Optional” components, and again you can visit AOpen official web site: www.aopen.com.tw for more 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 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 & pin 2.
5. Connect ATX power cable back to connector PWR2.
1
Normal
(
default
)
1
Clear
CMOS
Tip: When should I Clear CMOS?
1. Boot fail because of overclocking…
2. Forget password…
3. Troubleshooting…
Pin 1