AOpen DX37PLUSUG User Manual

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PS/2 Mouse

Connector

SPP/EPP/ECP Parallel Port

RJ45 10/100

LAN Jack
(Optional)

Speaker Out

FAN3 Connecto

AUX-IN Connecto

CD-IN Connecto

FAN2 Connecto

Intel 82550 10/100 LAN

Controlle

CPU2 FAN Connecto

AGP Pro Slot

USB Connecto

FAN1 Connector

32 Bit PCI Slot x 5

4Mbit Flash BIOS

Game Port Connecto

CPU #2

PS/2 Keyboard

Connector

USB Port COM 1 Port

COM 2 Port

1500μF Low ESR Capacitors

CPU1 FAN connector

Dual CPU sockets

CPU #1

ATX 20-pin Power Connector

AGP Pro Power Connector
VIA Pro266T Chipset

Line-In MIC-In

Dual Channel Ultra 160 SCSI

Connector (DX37 Plus-U only)

Adaptec 7899W SCSI Controlle

(DX37 Plus-U only)

WOL (Wake on LAN) Connecto

184-pin DIMM Socket x4 supports
PC-1600/2100 DDR SDRAM

maximum up to 4 GB
JP14 CMOS Clear Jumpe
Redundant SPS Connector

ATA/33/66/100 IDE Connector x2

FDD Connector

Front Panel Connecto

SCSI LED Connector (DX37 Plus-U only)

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.

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.

Hard Drive IDE Cable x 1

80-Wire IDE Cable x 1
Floppy Drive Cable x 1

Normal

default

Plug in the CPU fan cable to the 3-pin CPU1 FAN and CPU2 FAN connector. If you have chassis fan, you
can also plug it on System FAN (FAN2) or AUX FAN (FAN3) connector.

Clear CMOS

2. Installing CPU & System Fan

Ultra 160 SCSI 68 pin Cable x 1 (DX37 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 x 1 (Optional)
SCSI Utility Driver x 1

PART NO: 90.53G30.006 DOC. NO: DX37PU-EG-E0112B Note: Some CPU fans do not have

FAN2

Connector

GND
+12V
Sensor

FAN1 Connector

sensor pin so they cannot support fan
monitoring.

FAN3 Connector

GND
+12V
Sensor

CPU1 Fan Connector

GND
+12V
SENSOR

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3. Installing Processor

CPU socket lever

CPU Pin 1 and cut edge

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 uppe
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 CPU
socket Pin 1 and CPU cut edge
well, it may damage the CPU.

4. Supported CPU Type

The DX37-U / DX37 Plus-U supports Intel® Socket 370 Pentium III series CPU. Including
the code name Tualatin 512K cache CPU for dual CPU configuration.

Processor Name CPU Package
Single Processor Pentium !!! All

Dual Processor

Pentium !!!
Pentium !!! 512K

Coppermine
Tualatin

5. Setting CPU Voltage & Frequency

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

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.