Aopen DX34UG User Manual

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PS/2 Mouse

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Connector

SPP/EPP/ECP Parallel Port

RJ45 10/100

LAN Jack
(Optional)

Speaker Out (DX34-U only)

S1_FAN Connecto

WOL Connecto

(Wake On LAN)

Intel 82559 10/100

LAN Controlle

GP Pro Slo

32 Bit PCI Slot x 5

4Mbit Flash BIOS

SCSI Card HDD LED Connecto

(DX34 Plus-U only)

daptec Ultra3 SCSI Controlle

(DX34 Plus-U only)

S2_FAN Connecto

CPU #1

PS/2 Keyboard

Connector

USB Port

CPU #2

COM 1 Port

Line-In MIC-In
(DX34-U only)

Low ESR Capacitor

Dual CPU Sockets

P1_FAN & P2_FAN Connector

VIA Apollo Pro 133T Chipset

PC-133 DIMM Slot x 3

SSI ATX Power Connector

AGP Pro Power Connector

TA/100 IDE Connecto

Redundant SPS Connector
Front Panel Connector

Dual Channel Ultra3 SCSI

Connector (DX34 Plus-U only)

BP (Back panel) Connector

1.Installing Processor

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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!

Hard Drive IDE Cable x 1
80-Wire IDE Cable x 1
Floppy Drive Cable x 1
Ultra 160 SCSI 68 pin Cable x 1 (DX34 Plus-U only)
Bonus Pack CD disc x 1
User Manual x 1
This Easy Installation Guide x 1
I/O Bracket x 1
ASM Lite x 1

CPU socket lever

CPU Pin 1 and cut edge

1. Pull up the CPU socket lever 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 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 CPU.

2. Installing CPU & Housing Fan

Plug in the CPU fan cable to the 3-pin CPU FAN (P1_FAN & P2_FAN) connector and housing fan cable to
the System Fan (S1_FAN & S2_FAN) connector.

Senso

+12

GND

System fan connector

(S1_FAN)

CPU fan connector
(P1_FAN & P2_FAN)

GND
+12V
Sensor

PART NO: 90.50F30.007 DOC. NO: DX34PU-EG-E0112C

System fan connector (S2_FAN)

GND
+12V
Sensor

3. JP14 Clear CMOS

4. Supported CPU Type

The DX34-U / DX34 Plus-U support s Intel® Socket 370 Celecron™ and Pentium III series
CPU. Including the code name Tualatin 512K cache CPU for dual CPU configuration.

Processor Name CPU Package

Single Processor

Dual Processor

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
& pin2.

5. Connect ATX power cable back to connector PW R2.

Normal Operation

(default)

Pentium !!!
Celeron
Pentium !!!
Pentium !!! 512K

All
FCPGA
Coppermine
Tualatin

Clear CMOS

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

detected and the range is from 1.05V to 1.825V. 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
CPU FSB

(By BIOS Table)

CPU CPU Core Frequency FSB Clock Ratio

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
Pentium III 1G 1GHz 133MHz 7.5x
Pentium III 1.13G 1.13GHz 133MHz 8.5x
Pentium III 1.26G 1.26GHz 133MHz 9x

5. Setting CPU Voltage & Frequency

3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x , 6.5x, 7x, 7.5x, 8x, 8.5x, 9x, 9.5x, 10x, 10.5x, 11x, 11.5x,
12x, 12.5x, 13x, 13.5x, 14x, 14.5x, 15x, 15.5x and 16x

100 and 133 MHz

Warning: We strongly
recommend you do not
overclocking your CPU
and system for get more
system reliability.