AOpen AX4BRUG User Manual

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(AOpen reserves the right to revise all
the specifications and information
contained in this documentation which
is subject to change without notice.)

PS/2 Mouse

Connector

SPP/EPP/ECP Parallel Port

COM2 Connecto

32-bit PCI Expansion Slot x5

WOL Connecto

2nd USB Connecto

4Mbit Flash ROM

RAID IDE1 Connecto

PS/2 Keyboard

Connector

COM 1 Port

VGA Port

USB Ports

LAN Ports

4-pin 12V. ATX Power Connector
Resetable Fuse

SYSFAN2 Connector

2200μF Low ESR Capacitors

478-pin CPU socket with Voltage and
Frequency Aut o-det ect ion that supports

®

Pentium® 4 1.4~2.8GHz+ CPU

Intel

845E chipset

Intel

CPUFAN Connector
184-pin DIMM Socket x2 supports

PC-200/266 DDR SDRAM
maximum up to 2 GB

SYSFAN1 Connecto

JP14 CMOS Clear Jumpe

RAID IDE2 Connecto

TX Power Connector

Front Panel Connector

TA/33/66/100 IDE Connector x2

FDD Connecto

Everything you need to boot this

(

motherboard is included in this
Easy Installation Guide. For more
information, a complete Online

User's Manual can be found in the
Bonus Pack CD. Thanks for the

help of saving our earth.

This Motherboard x1
This Easy Installation Guide x1
User Manual x 1

80-wire IDE Cable x2
Floppy Disk Drive Cable x1
COM2 Cable x1

I/O Port Bracket x1

Bonus Pack CD x1

NORTON AntiVirus CD x 1

Assembly Screw Pack x1

1. JP14 Clear CMOS

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.

Pin 1

Tip: When should I Clear CMOS?

1. Boot fail because of overclocking…

2. Forget password…

Normal

default)

Clear CMOS

3. T roubleshooting…

2. Connecting ATX Power Connector

This motherboard comes with a 20-pin and 4-pin ATX power connector as shown below. Make sure you plug
in the right direction. We strongly recommend you to insert the 4-pin connector before connecting the 20-pin
connector.

PART NO: 90.51Q30.001 DOC. NO: AX4BRU-EG-E0209B

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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.

CPU socket lever

3. Installing Processor

1. Pull up the CPU socket lever and up to
90-degree angle.

2. Locate Pin 1 in the socket and look fo
a (golden) cut edge on the CPU uppe
interface. Match Pin 1 and cut edge.
Then insert the CPU into the socket.

3. Press down the CPU socket lever and
finish CPU installation.

Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
may damage the CP U.

CPU cut edge

5. Installing DIMM Module

This motherboard has two 184-pin DDR DIMM sockets that allow you to install DDR200 or

DDR266

memory up to 2GB.

DIMM1
DIMM2

4. Installing CPU & System Fan

Plug in the CPU fan cable to the 3-pin CPU FAN connector. If you have chassis fan, you
can also plug it on SYSFAN2 or FAN3 (AUX Fan) connector.

SENSOR

CPUFAN Connector

SENSOR

SYSFAN2 Connector

GND
+12V
SENSOR

SYSFAN1 Connector

Note: Some CPU fans do not have
sensor pin so they cannot support fan
monitoring.

+12V

GND

+12V

GND

6. Installing CPU & System Fan

Connect 34-pin floppy cable and 40-pin IDE cable to floppy connector FDC and IDE
connector. Pin1 of cable is normally marked with red color. Addition to IDE connectors, we
also provide two RAID IDE connectors for you to connect RAID. Be careful of the pin1
orientation. Wrong orientation may cause system damage.

IDE Secondary (2nd)

IDE Primary (1st)

RAID primar

channel

ATA 66/100 IDE

Connector

RAID secondary
channel

FDD Connector

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Pin 1

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This motherboard provides four USB connectors to connect USB devices, such as mouse,
keyboard, modem, printer, etc. There are two connectors on the PC99 back panel. You can
use proper cable to connect the other USB connector to the back panel or front panel o
chassis.

7. Support 2nd USB Port

USB2 Connector

GND

KE

1 2

USBPWR0
USB_FP_P1-

USB_FP_P1+
GND
NC

8. Connecting COM2 Connector

USBPWR0

USB_FP_P0-

USB_FP_P0+

This motherboard comes with a COM1 connector on the back panel. However, we provide
an extra COM2 connector for your convenience. Once you need to connect a device via
COM2, just connect a suitable cable on it.

Pin 1

CTS#
DSR#
DTR#

SIN

RTS#
RI#
GND
SOUT
DCD#

2 1

9. Connecting WOL

To use Wake On LAN function, you must have a network card with chipset that supports
this feature, and connect a cable from LAN card to motherboard WOL connector. The
system identification information (probably IP address) is stored on network card and
because there is a lot of traffic on the Ethernet, you need to install network managemen
software, such as ADM, for the checking of how to wake up the system. Note that, at least
600mA ATX standby current is required to support the LAN card for this function.

LID
GND
+5VSB

WOL Connecto

10. Connecting Front Panel Cable

Attach the power LED, speaker, and reset switch connectors to the corresponding pins. If
you enable “Suspend Mode” item in BIOS Setup, the ACPI & Power LED will keep
flashing while the system is in suspend mode.

Locate the power switch cable from your ATX housing. It is 2-pin female connector from
the housing front panel. Plug this connector to the soft-power switch connector marked
SPWR.

RESET

+5V

+5V
GND
GND

SPEAKER

GND

RESET

GND

ATX_ON

GND

SPEAKER

IDE LED

CPI &

Power LED

Power
Switch

IDE LED
IDE LED
+5V
GND
INTRUDER

PWR BN
GND

CPILED-

GND

CPILED

11. STBY LED

13. PC99 Color Coded Back Panel

STBY LED is AOpen’s considerate design that we aim at providing you friendly system
information. The STBY LED will light up when power is provided to the motherboard. This is
a convenient indication for you to check the system power status in many circumstances
such as power on/off, stand-by mode and RAM power status during Suspend to RAM
mode.

System

Warning: Do not install or
remove the DIMM module
or others devices when the
STBY LED lights on.

12. Support 10/100Mbps LAN Onboard

The Intel 82551QM includes a fast Ethernet controller on chip. On the strength of this LAN
controller on board, which is a highly-integrated Platform LAN Connect device, it provides
10/100M bps Ethernet for office and home use, the Ethernet RJ45 connector is located on
top of USB connectors. The green LED indicates the link mode, it lights when linking to
network and blinking when transferring data. The orange LED indicates the transfer mode,
and it lights when data is transferring in 100Mbps mode. To enable or disable this function,
you may simply adjust it through BIOS.

The onboard I/O devices are PS/2 Keyboard, PS/2 Mouse, COM1, VGA port, Printer, USB, and
LAN ports. The view angle of drawing shown here is from the back panel of the housing.

PS/2 Mouse

Connector

PS/2 Keyboard

Connector

COM 2 Port

SPP/EPP/ECP

Parallel Port

VGA Port

USB

Connectors

LAN Port

LAN Port

PS/2 Keyboard: For standard keyboard, which is using a PS/2 plug.
PS/2 Mouse: For PC-Mouse, which is using a PS/2 plug.
USB Port: Available for connecting USB devices.
Parallel Port: To connect with SPP/ECP/EPP printer.
COM1/COM2 Port: To connect with pointing devices, modem or others serial devices.
VGA Connector: To connect with PC monitor.

14. Enlarged Aluminum Heatsink

Cool down CPU and Chipset is important for system reliability. Enlarged aluminum heat sink
provides better heat consumption especially when you are trying to over clocking the CPU.

Green/ACT

100/10Mb Ethernet Port

Orange/Speed

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15. Power-on and Load BIOS Setup

17. Installing Intel IA A Driver

Del

fter you fini sh the setting of jump ers and connect correc t cables. Power on
and enter the BIOS Setup, press <Del> during POST (Power On Self Test).
Choose "Load Setu p Defaults" for recommended optimal performance.

16. Installing Intel IN F Uti lity

Windows 95/98 cannot recognize this chipset, because it was released before the Intel
845E chipset. You can install the Intel INF Update Utility from the Bonus Pack CD auto-run
menu to eliminate the “?” marks.

You can install Intel IAA Driver to increase the performance of software applications and
reduce PC boot times. You can find it in the AOpen Bonus Pack CD.

18. Model name and BIOS version

Model name and BIOS version can be found on upper left corner of first boot screen
(POST screen). For example:

AX4BR-U R1.02 Sep. 01. 2002

AX4BR is model name of motherboard; R1.02 is BIOS version

Part Number and Serial Number

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If you encounter any trouble to boot you system, follow the procedures
accordingly to resolve the problem.

Turn off the power and unplug the AC power cable, then remov e all
of the addon cards and cables, including VGA, IDE, FDD, COM1,
COM2 and Printer.

Make sure if the jumper settings for CPU and DRAMs are correct.

Install the VGA card. Then connect your monitor and keyboard.

Turn on the power, and check if

Start

Clear CMOS.

the power supply and CPU fan

work properly.

Check if there is display.

Yes

Yes

The Part Number and Serial number are printed on bar code label. You can find this bar
code label on the outside packing or on component side of PCB. For example:

Part No.

Serial No.

Part No. Serial No.

P/N: 91.88110.201 is part number, S/N: 91949378KN73 is serial number.

No

The problem was probably caused
by power supply or motherboard
failure. Please contact your r eselle
or local distributor for repairing.

No

Perhaps your VGA card or monito
is defective.

Press Ctrl, and Alt key at the

same time, hold them and then

press Del to see if the

stem reboots.

s

During system rebooting, press Del to enter BIOS Setup. Choose
“Load Setup Default".

Turn off the system and

re-connect the IDE cable.

Check if the system can

reboot successfully.

Re-install Windows 95, Windows 98 or Windows NT.

End

Yes

Yes

No

It is very possible that your keyboard
is defective.

No

The problem should be caused by the
IDE cables or HDD itself.

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Dear Customer,
Thanks for choosing AOpen products. To provide the best and fastest service to

our customer is our first priority. However, we receive numerous emails and

hone-calls worldwide everyday, it is very hard for us to serve everyone on time.
We recommend you follow the procedures below and seek help before contact
us. With your help, we can then continue to provide the best quality service to
more customers.

Thanks very much for your underst and ing!

Open Technical Supporting Team

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Online Manual: Please check the manual carefully and make sure the

jumper settings and installation procedure are correct.

http://english.aopen.com.tw/tech/download/manual/default.htm

Test Report: We recommend to choose board/card/device from the
compatibility test reports for assembling your PC.

http://english.aopen.com.tw/tech/report/default.htm

FAQ: The latest FAQ (Frequently Asked Questions) may contain a
solution to your problem.

http://english.aopen.com.tw/tech/faq/default.htm

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Pacific Rim
AOpen Inc.
Tel: [phone]
Fax: [phone]

China
艾爾鵬國際貿易(上海)有限公司
Tel: [phone]
Fax: [phone]

America
AOpen America Inc.
Tel: [phone]
Fax: [phone]

Web Site: http://www.aopen.com.tw
E-mail: Send us email by going through the contact form below.
English http://english.aopen.com.tw/tech/default.htm
Japanese http://www.aopen.co.jp/tech/default.htm
Chinese http://www.aopen.com.tw/tech/default.htm
German http://www.aopencom.de/tech/default.htm
Simplified Chinese http://www.aopen.com.cn/tech/default.htm

Europe
AOpen Computer b.v.
Tel: [phone]
Fax: [phone]

Germany
AOpen Computer GmbH.
Tel: [phone]
Fax: [phone]

Japan
AOpen Japan Inc.
Tel: [phone]
Fax: [phone]

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Download Software: Check out this table to get the latest updated

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News Group: Your problem probably had been answered by our support

engineer or professional users on the news group.

http://english.aopen.com.tw/tech/newsgrp/default.htm

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BIOS/utility and drivers.

http://english.aopen.com.tw/tech/download/default.htm

Contact Distributors/Resellers: We sell our products through resellers

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and integrators. They should know your system configuration very well and
should be able to solve your problem efficiently and provide important
reference for you if next time you want to buy something else from them.

Contact Us: Please prepare detail system configuration and error symptom
before contacting us. The part number, serial number and BIOS version
are also very helpful.