AOpen MX33 Datenblatt

PC-133 SDRAM Slot x 3

Low ESR capacitor

Resettable Fuse

CPU Socket with Voltage

uto Detection

Fan2 Connector

(Non-Monitoring)

CPU Fan Connector

(With H/W Monitoring)

TX Power Connector

(

With AC Power Auto Recover

JP23 FSB Select Jum

On-board Sound Back Panel

Modem Audio-In

CD Audio-In

AMR Slot

JP12 On-board Sound

Enable/Disable Jumpe

32bit PCI Slot x 3

GP 2X Slot

Support 2nd USB Port x 2

IrDA Connecto

Chassis Fan Connecto

(With H/W Monitoring)

VIAApollo Pro 133 Chipset

Front Panel Connecto

2Mbit Flash ROM

multi-language BIOS

onnecto

WOM Connecto

ATA/66 IDE Connector

FDD Connector

Audio Video-In

JP14 Clear CMOS Jumpe

Front Panel Audio

PS/2 Mouse

Connecto

PS/2 Keyboard

Connecto

USB Port

SPP/EPP/ECP

Parallel Port

COM 1 Port COM 2 Port

Game Port

MIC-In

Line-In

Speaker Out

1. JP14 Clear CMOS

2. JP12 Enable/Disable Onboard Audio

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 Disc. Thanks for the help of

saving our earth.

PART NO: 49.89401.011 DOC. NO: MX33-EG-E0009A

Hard Drive IDE Cable x 1

80-Wire IDE Cable x 1

Floppy Drive Cable x 1

Bonus Pack CD disc x 1

This Easy Installation Guide x 1

Tip: When should I Clear CMOS?

1. Boot fail because of overclocking…

2. Forget password…

3. Troubleshooting…

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 pins 1-2.

5. Connect ATX power cable back to connector PWR2.

123 123

DisableEnable

Pin 1

This motherboard has AC97 sound onboard. JP12 is used to enable or disable onboard AD1885 CODEC

chip. If you select Disable, you can use your preferred AMR sound card.

Setting CPU Core Voltage

This motherboard supports CPU VID function. The CPU core voltage will be automatically

detected and the range is from 1.3V to 3.5V.. It is not necessary to set CPU Core Voltage

Setting CPU Frequency

This motherboard is CPU jumper-less design, you can set CPU frequency through the

BIOS setup, no jumpers or switches are needed.

BIOS Setup > Frequency / Voltage Control > CPU Speed Setup

Core Frequency = CPU FSB Clock * CPU Ratio

CPU Ratio 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x, 7.5x, and 8x

CPU FSB 66.8, 68.5, 75, 83.3, 100, 103, 112, 117, 124, 129, 133.3, 138, 143, 148,

150MHz.

CPU CPU Core Frequency FSB Clock Ratio

Celeron 300A 300MHz 66MHz 4.5x

Celeron 366 366MHz 66MHz 5.5x

Celeron 400 400MHz 66MHz 6x

Celeron 433 433MHz 66MHz 6.5

Celeron 466 466MHz 66MHz 7x

Celeron 500 500MHz 66MHz 7.5x

Celeron 533 533MHz 66MHz 8x

Celeron 566 566MHz 66MHz 8.5x

Celeron 600 600MHz 66MHz 9x

Pentium III 600E 600MHz 100MHz 6x

Pentium III 650E 650MHz 100MHz 6.5x

Pentium III 700E 700MHz 100MHz 7x

Pentium III 750E 750MHz 100MHz 7.5

Pentium III 800E 800MHz 100MHz 8x

Pentium III 850E 850MHz 100MHz 8.5x

Pentium III 533EB 533MHz 133MHz 4x

Pentium III 600EB 600MHz 133MHz 4.5x

Pentium III 667EB 667MHz 133MHz 5x

Pentium III 733EB 733MHz 133MHz 5.5

Pentium III 800EB 800MHz 133MHz 6x

Pentium III 866EB 866MHz 133MHz 6.5

Pentium III 933EB 933MHz 133MHz 7x

5. Setting CPU Voltage & Frequency

4. Installing CPU Fan

3. Installing CPU

1. Pull up the CPU socket level and up to

90-degree angle.

2. Locate Pin 1 in the socket and look for a

(golden) cut edge on the CPU upper interface.

Match Pin 1 and cut edge. Then insert the

CPU into the socket.

3. Press down the CPU socket level and finish

CPU installation.

Note: If you do not match the CP

socket Pin 1 and CPU cut edge well,

it ma

dama

e the CPU.

CPU socket level

CPU Pin 1 and cut edge

Plug in the fan cable to the 3-pin CPUFAN connector.

GND

+12V

SENSE

Note: Some CPU fans do not have

sense pin, so that cannot support fan

monitorin

.Warning: VIA Apollo Pro 133 chipset support

maximum 133MHz FSB and 66MHz AGP clock, highe

clock setting may cause serious system damage.

Home

Tip: If your system hangs or fails to boot because of overclocking,

simply use <Home> key to restore the default setting.

7. Install DIMM Modules

6. JP23 FSB/PCI Clock Ratio 8. Connecting IDE and Floppy Cable

9. Connecting Front Panel Cable

The JP23 is used to specify the relationship of PCI

and FSB clock. Generally speaking, if you are not

overclockers, we recommend set the jumper at the

default setting.

Auto

(

default

)

PCI=FSB/3

(

100~124MHz

)

PCI=FSB/2

(

133~150MHz

)

PCI=FSB/4

(

66~83MHz

)

DIMM1

DIMM2

DIMM3

Tip: The driving capability of ne

generation chipset is limited due to the

lack of a memory buffer (to improve

erformance). This makes DRAM chip

count an important factor to take into

consideration when you install DIMMs.

Unfortunately, there is no way that the

BIOS can identify the correct chip

count, you need to calculate the chip

count by yourself. The simple rule is:

By visual inspection, use onl

DIMMs which are less than 1

chi

Pin 1

This motherboard has three 168-pin DIMM sockets that allow you to install PC100 o

PC133 memory up to 1.5GB. Only SDRAM is supported.

Pin 1

IDE1 (Primary)

Secondary

Slave (4th)

Primary

Master (1st)

Primary

Slave (2nd)

Secondary

Master (3rd)

Pin 1

FDD Connecto

ATA66 IDE

Connector

Connect 34-pin floppy cable and 40-pin ATA66 or ATA33 IDE cable to floppy connecto

FDC and IDE connector IDE1, IDE2. Pin1 of cable is normally marked with red color. Be

careful of the pin1 orientation. Wrong orientation may cause system damage.

ttach the power LED, keylock, 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 AT

housing. It is 2-pin female connector from the

housing front panel. Plug this connector to the

soft-power switch connector marked SPWR.

Speaker

IDE HDD

LED

Keylock

SPWR

+ ACPI &

Power LED

Reset

SPWR

GND

ACPI & PWR LED

GND

+5V

GND

RESET

GND

KEYLOC

IDE LED

GND

SPEAKE

12. Connecting CD / Modem / Video_Audio_IN

13. Front Panel Audio (Optional)

10. Connect ATX Power Connector

The ATX power supply uses 20-pin connector shown below. Make sure you plug in

the right direction.

11. Connect IrDA Connector

The IrDA connector can be configured to support wireless infrared module, with this

module and application software such as Laplink or Windows 95 Direct Cable

Connection, the user can transfer files to or from laptops, notebooks, PDA devices and

printers. This connector supports HPSIR (115.2Kbps, 2 meters) and ASK-IR (56Kbps).

Install the infrared module onto the IrDA connector and enable the infrared function

from BIOS Setup, UART mode select, make sure to have the correct orientation when

you plug in the IrDA connector.

If the housing has been design with an audio port on the front panel, you’ll be able to

connect onboard audio to front panel through this connector.

GND

Phone_R

Phone_L

FP_Mic

Pin 1

1 +5V

2 NC

3 IRRX

4 GND

5 IRTX

6 NC

The CD-IN connector is used to connect CD Audio

cable from CDROM or DVD drive to onboard sound.

The Modem-CN connector is used to connect

Mono In/ Mic Out cable from internal modem card to

onboard sound circuit.

The Video_Audio_IN connector is used to connect

MPEG Audio cable from MPEG card to onboard

sound.

ideo_Audio_In

CD_In

Connector Pin1 Pin2 Pin3 Pin4

CD-IN Left GND GND Right

Modem-CN Mono In GND GND Mic Out

Video_Audio_IN Left GND GND Right

Modem_In Pin 1

Pin 1

PS-ON

+5V

-5V

COM

COMCOM

COM

-12V

+3.3V

COM

5VSB

PW-OK

COM

+5V

+12V

fter you finish the setting of jumpers and connect correct cables. Powe

on and enter the BIOS Setup, press <Del> during POST (Power On Sel

Test). Choose "Load Setup Defaults" for recommended optimal

performance.

14. Power-on and Load BIOS Setup

15. AOpen Bonus Pack CD 17. BIOS Upgrade

Open Easy Flash is more user friendly than traditional flash method. The BIOS binary

file and flash routine are combined together and you simply run a single file to complete

the flash process.

1. Download new BIOS upgrade zipped file from AOpen's web site. For example,

MX33102.ZIP.

2. Run shareware PKUNZIP (http://www.pkware.com/) which supports

miscellaneous operation systems to extract the binary BIOS file and the flash

utility. Or Winzip (http://www.winzip.com/) in Windows environment.

3. Save the unzipped file into a bootable floppy disk.

For example, MX33102.BIN & MX33102.EXE

4. Reboot the system to DOS mode without loading any memory handler (such as

EMM386) or device driver. It needs around 520K free memory space.

5. Execute A:> MX33102 and the program will do the rest of it.

DO NOT turn off the power during FLASH PROCESS until you are asked to!!

6. Reboot system and press <Del> to enter BIOS Setup, Choose "Load Setup

Defaults", then “Save & Exit Setup” and finish the BIOS upgrade.

Warning: The upgrade of new BIOS will permanently replace your original BIO

content after flashing. The original BIOS setting and Win95/Win98 PnP information

will be refreshed and

robabl

need to re

confi

ure

our s

stem.

16. Installing Onboard Sound Driver

You can use the autorun menu of Bonus CD disc. Choose the utility and driver and

select model name.

Del

Warning: Please avoid of using

"Load Turbo Defaults", unless you

are sure your system components

(CPU, DRAM, HDD, etc.) are good

enou

h for turbo settin

This motherboard comes with an AD 1885AC97 CODEC. You can find the audio

driver from the Bonus Pack CD disc autorun menu.

If you encounter any trouble to boot you system, follow the

procedures accordingly to resolve the problem.

Part Number and Serial Number

The Part Number and Serial number are printed on bar code label. You can find this

bar code label on the outside packing, on ISA/CPU slot or on component side of PCB.

For example:

Model name and BIOS version

MX33 R1.00 Aug. 04. 2000 AOpen Inc.

ward Plug and Play BIOS Extension v1.0A

Model name and BIOS version can be found on upper left corner of first boot screen

(POST screen). For example:

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

MX33 is model name of motherboard, R1.00 is BIOS version.

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

Clear CMOS.

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

The problem was probably caused

by power supply or motherboard

failure. Please contact your reselle

or local distributor for repairing.

Perhaps your VGA card or monito

is defective.

Yes

It is very possible that your keyboard

is defective.

During system rebooting, press Del to enter BIOS Setup. Choose

“Load Setup Default".

The problem should be caused by the

IDE cables or HDD itself.

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

Yes

Turn off the power and unplug the AC power cable, then remove all

of the addon cards and cables, including VGA, IDE, FDD, COM1,

COM2 and Printer.

Turn on the power, and check if

the power supply and CPU fan

work properly.

Start

Check if there is display.

Press Ctrl, and Alt key at the

same time, hold them and then

press Del to see if the

stem reboots.

Turn off the system and

re-connect the IDE cable.

Check if the system can

reboot successfully.

End

Part No. Serial No.

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 understanding!

Open Technical Supporting Team

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

jumper settings and installation procedure are correct.

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

FAQ: The latest FAQ (Frequently Asked Questions) may contain a

solution to your problem.

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

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

BIOS/utility and drivers.

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

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

engineer or professional users on the news group.

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

Contact Distributors/Resellers: We sell our products through resellers

and integrators. They should know your system configuration very well and

should be able to solve your problem more efficiently than us. After all, their

attitude of service is an important reference for you if next time you want to

buy something else from them.

symptom before contacting us. The part number, serial number and BIOS

version are also very helpful.

Web : http://www.aopen.com

Email : Send us email by going through the contact form below.

English http://www.aopen.com.tw/tech/contact/techusa.htm

Japanese http://aojp.aopen.com.tw/tech/contact/techjp.htm

Chinese http://w3.aopen.com.tw/tech/contact/techtw.htm

German http://www.aopencom.de/tech/contact/techde.htm

Simplified Chinese http://www.aopen.com.cn/tech/contact/techcn.htm

TEL:

USA 510-489-8928

Netherlands +31 73-645-9516

China (86) 755-375-3013

Taiwan (886) 2-2696-1333

Germany +49 (0) 2102-157-700

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