PS/2 Mouse
Connector
SPP/ECP/EPP Print Port
Speaker Out
USB
Connector
RJ45 LAN
Connector
MIC
COM 2 Port
Line In
PS/2 Keyboard
Connector
COM 1 Port
CD Audio-In (DX34 Only)
FAX-VOICE (DX34 Only)
AC97 CODEC Chip
(DX34 Only)
WOL (Wake On LAN)
Connector
Low ESR Capacitor
Dual CPU Sockets
Intel 82559 10/100
LAN Controller
AGP Pro Slot
Thermal Sensor Connector
CPU Fan Connector
CPU #1
CPU #2
32 Bit PCI Slot x 5
4Mbit Flash BIOS
VIA Apollo Pro 133A Chipset
PC-133 DIMM Slot x 3
SCSI HDD LED Connector
SSI ATX Power Connector
Adaptec Ultra3 SCSI Controller
(DX34Plus Only)
AGP Pro Power Connector
Redundant SPS Connector
Front Panel Connector
System Fan Connector
ATA/66 IDE Connector
Dual Channel Ultra3
SCSI Connector
BP (Backplane) Connector
3. Installing Thermal Sensor
5. SW1 Setting CPU FSB Frequency & Ratio
The Thermal Sensor Connector (CN12 & CN1) provides you to use the thermal sensor
to detect the CPU temperature of the components on the motherboard.
When you are using the Intel® engineer sample CPU with DX34/DX34Plus, the SW1
allows you select the CPU ratio from 2xto 9.5x. You can adjust the SW1 to get the correct
CPU working ratio and frequency.
ON
1
OFF
GND
Sensor
SW1
Warning: We strongly recommend you do
not overclocking your CPU and system for
get more system reliability.
4. SW3 Select CPU Type
Frequency
(FSB100)
Frequency
(FSB133)
Bit1
Bit2
Bit3
Bit4
Ratio
This motherboard supports DUAL processors for Intel PentiumII / Pentium!!!, and
Celeron CPU (applied to PPGA package only, must lower than 300MHz). Please refer
to the following table for detail. It is not recommended to change the default setting,
unless the system fails to boot and you’re trying to troubleshoot.
On
On
On
On
On
On
On
On
Off
Off
Off
Off
Off
Off
Off
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
Off
On
On
Off
Off
On
On
Off
Off
On
On
Off
Off
On
On
Off
Off
On
On
On
On
Off
Off
Off
Off
On
On
On
On
Off
Off
Off
Off
X2
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
266
333
X2.5
X3
400
1
X3.5
X4
466
533
X4.5
X5
600
OFF
ON
667
X5.5
X6
733
800
X6.5
X7
866
SW3
933
Processor CPU Package
PentiumII
Configuration
Default
X7.5
X8
1000
1066
1133
1200
1266
2
1
2
1
Single Processor Pentium!!!
All
ON
ON
Celeron
PentiumII
Pentium!!!
Celeron
X8.5
X9
All
Default
(Default)
Dual Processor
X9.5
PPGA
Set the SW3 to OFF
Not Supported
Celeron
FC-PGA
6. Install DIMM Modules
8. Connecting Redundant SPS Connector
This motherboard implements Redundant SPS connector to provide better expansibility
on superior server. It is feasible to install an additional 337-watts power supply module
(optional) in a hot-swappable redundant configuration, which enables a fully-configure
system to continue running even if one power module fails.
This motherboard has three 168-pin DIMM sockets that allow you to install PC100 or
PC133 memory up to 1.5GB. This motherboard supports not only SDRAM but also VCM
and Registered DRAM.
Tip: The driving capability of new generation
chipset is limited due to the lack of a memory
buffer (to improve performance). 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.
Present 1
PS_ON
PS 3 Fail
Fan 3 Fail
I2C CLK
Fan 1 Fail
PS 1 Fail
13
14
1
2
I2CDA
Present 3
GND
PS 2 Fail
Fan 2 Fail
Present 2
5VSB
DIMM 3
DIMM 2
DIMM 1
7. Connecting ATX and AGP Pro Power Connector
9. Connecting IDE & FDD Cable
The DX34 / DX34Plus uses Intel® SSI (Server System Infrastructure) type 24-pin ATX
power connector. The 6-pin AGP Pro Power connector provides extra +5V and +3.3V
power for AGP Pro VGA card. Make sure you plug in the right direction.
Connect 34-pin floppy cable and 40-pin ATA66 or ATA33 IDE cable to floppy connector
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.
Primary
Primary
24-pin ATX Power connector
Slave (2nd)
FDD
Connector
Master (1st)
IDE1 (Primary)
13
+12V
1
+5V
5VSB
PWR OK
COM
+5V
-5v
AGP Pro Power
COM
COM
COM
PS-ON
COM
-12V
ATA/66 IDE
Connector
+5V
COM
6
1
+5V
IDE2 (Secondary)
COM
Pin 1
+3.3V
+5V
+3.3V
+3.3V
GND
GND
GND
+3.3V
+3.3V
20
19
Secondary
Master (3rd)
Secondary
Slave (4th)
10. Connecting 68-pin Ultra3 SCSI Cable (DX34 Plus)
12. CD-IN & FAX-Voice Connector (Applied to DX34)
The DX34Plus provides two 68-pin Ultra Wide/Ultra 2/3 SCSI connectors for 16-bit
or 16-bit differential SCSI devices.
If you have installed the CD-ROM drive in the
system, the CD-In Connector (CN19) can be
connected to audio output connector of internal
CD-ROM drive.
68-pin SCSI Ultra3 Connectors
This FAX-VOICE connector (CN21) can let the fax
sound of Modem device speak out from external
speaker by connected .to internal Modem card.
Connector
CD-IN
Pin1
Pin2 Pin3
Pin4
Left
GND GND
Right
FAX-Voice
MIC-IN GND GND Phone
11. Connecting Front Panel Connector
13. Connecting SCSI LED Connector
Attaching such as power LED, reset switch, power switch connector, etc.… to
corresponding pins.
The 4-pin SCSI LED connector can be connected to the SCSI hard disk control card
activity LED connector. Read or write activity by devices connected to the SCSI card
will cause the LED lighting up.
ATX
Chassis
Power Switch
Intrusion Switch
Power LED
1
2
21
22
-
+
+
-
CN23
CN24
HDD LED Reset Switch
-
+5V
GND
PWR LED
+5VSB
+
+
-
RST S/W
INT S/W
1
2
21
22
GND
GND
GND
+5V
HDD LED
HDD LED
+5V
16. Power-On and Load BIOS Setup
14. Select Buzzer or Ext. Speaker
After you finish the setting of jumpers and connect correct cables. Power on and
enter the BIOS Setup, press <Del> during POST (Power On Self Test). Choose
"Load Default Setting" for recommended optimal performance.
There is one jumper cap over pin1 and pin2 of JP4 for internal buzzer. If you want to
use external case-mounted speaker instead of internal buzzer, please remove jumper
cap to short pin2 and pin3.
Del
1
JP4
1
1
Warning: Please avoid of using
"Load Turbo Defaults", unless you
are sure your system components
(CPU, DRAM, HDD, etc.) are good
enough for turbo setting.
Buzzer
Speaker
(Default)
15. SCSI Channel Terminator Control (DX34 Plus only)
17. Installing Onboard Sound Driver
The JP3/JP3X allows you to enable or disable the on-board SCSI Channel A and B
terminator control function. The SCSI Channel A is controlled by JP3; the Channel B is
controlled by JP3X.
This motherboard comes with an AD 1885 AC97 CODEC. You can find the audio
driver from the Bonus Pack CD disc autorun menu.
JP3
JP3X
1
1
ON
(Default)
OFF
Part Number and Serial Number
If you encounter any trouble to boot you system, follow the
procedures accordingly to resolve the problem.
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:
Start
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.
Make sure if the jumper settings for CPU and DRAMs are correct.
ClearCMOS.
Install the VGA card. Then connect your monitor and keyboard.
P/N: 91.88110.201 is part number, S/N: 91949378KN73 is serial number.
Turn on the power, and check if
the power supply and CPU fan
No
The problem was probably caused
by power supply or motherboard
failure. Please contact your reseller
work properly.
or local distributor for repairing.
Yes
No
Perhaps your VGA card or monitor
is defective.
Check if there is display.
Yes
Press Ctrl, and Alt key at the
same time, hold them and then
press Del to see if the
No
It is very possible that your keyboard
is defective.
system reboots.
Yes
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
rebootsuccessfully.
No
The problem should be caused by the
IDE cables or HDD itself.
Yes
Re-install Windows 95, Windows 98 or Windows NT.
End
Online Manual: Please check the manual carefully and make sure the
jumper settings and installation procedure are correct.
1
Dear Customer,
Test Report: We recommend to choose board/card/device from the
compatibility test reports for assembling your PC.
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
phone-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.
2
FAQ: The latest FAQ (Frequently Asked Questions) may contain a
solution to your problem.
Thanks very much for your understanding!
AOpen Technical Supporting Team
3
Pacific Rim
Europe
AOpen Inc.
Tel: 886-2-2696-1333
Fax: 886-2-8691-2233
AOpen Computer b.v.
Tel: 31-73-645-9516
Fax: 31-73-645-9604
Download Software: Check out this table to get the latest updated
BIOS/utility and drivers.
4
China
Germany
艾? ? ? ? 上海(股)有限公司
Tel: 49-2102-157700
Fax: 49-2102-157799
AOpen Computer GmbH.
Tel: 49-2102-157700
Fax: 49-2102-157799
News Group: Your problem probably had been answered by our support
engineer or professional users on the news group.
5
America
AOpen America Inc.
Tel: 1-510-498-8928
Contact Distributors/Resellers: We sell our products through resellers
Fax: 1-408-922-2935, 1-408-432-0496
and integrators. They should know your system configuration very well and
should be able to solve your problem more efficien n important reference for
you if next time you want to buy something else from them.
6
Web Site: www.aopen.com
E-mail: Send us email by going through the contact form below.
English
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.
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