AOpen AX34II Datasheet

PS/2 Mouse
Connecto
r
PS/2 Keyboard
Connecto
r
USB Port
SPP/EPP/ECP
Parallel Port
COM 1 Port COM 2 Port
MIDI/Game Port
MIC-In
Line-In
Speaker Out
Onboard AC97 CODEC
JP12 Enable/Disable
Onboard Sound
VIDEO-AUDIO-IN Connecto
r
MODEM-CN Connecto
r
Front Panel Audio Connecto
r
AMR Expansion Slot
32-bit PCI Expansion Slot x6
IrDA Connecto
r
WOM Connecto
r
2nd USB Connecto
r
GPO Connecto
r
2Mb Flash ROM BIOS
WOL Connecto
r
Dr. LED Connecto
r
Front Panel Connecto
r
Chassis Fan
Resettable Fuse
Low ESR Ca
p
acito
r
A
TX Power Connecto
r
370-pin CPU Socket
with Voltage & Frequency Auto-detection
supports Intel®Pentium®III and Celeron™
300MHz~1GHz+
A
GP 4X Ex
p
ansion Slot
VIAApollo Pro 133A Chipset
supports 100/133MHz FSB
168-pin DIMM Slot x4
supports PC100/PC133 SDRAM
maximum up to 1.5GB
JP14 CMOS Clear Jum
p
e
r
FDD Connecto
r
A
TA/33/66/100 IDE Connector x2
JP23 & JP29 FSB Select Jumper
CPU Fan
FAN1
CD-IN Connecto
r

Pin 1
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: 49.88904.001 DOC. NO: AX342-EG-E0105B
Hard Drive IDE Cable x 1
80-Wire IDE Cable x 1
Floppy Drive Cable x 1
Bonus Pack CD x 1
Norton AntiVirus CD x 1
This Easy Installation Guide x 1
This motherboard has AC97 sound onboard. JP12 is used to enable or disable onboard AD1885 CODEC
chip. If you don’t want to enable the Onboard Audio, you should set this jumper to 2-3, and disable the
“OnChip Sound” from BIOS setting > Advanced Chipset Features, before you install your preferred PCI
Sound Card.
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 PWR2.
Tip: When should I Clear CMOS?
1. Boot fail because of overclocking…
2. Forget password…
3. Troubleshooting…
Normal
(
Default
)
Clear CMOS
11
Pin 1
Disable
(Default)
Enable
11

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.
Plug in the CPU fan cable to the 3-pin CPU FAN connector. If you have chassis fan,
you can also plug it on FAN1 (without H/W monitoring) or FAN2 connector.
5. Setting CPU Voltage & Frequency
4. Installing CPU & Housing Fan
3. Installing CPU
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
may damage the CPU.
CPU socket lever
CPU Pin 1 and cut edge
GND
+12V
Sensor
Note: Some CPU fans do not have
sensor pin, so that cannot support
fan monitoring.
CPU Fan Connector
FAN1 Connector
GND
+12V
Sensor
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, and no jumpers or switches are needed.
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 (By BIOS table) 66.8, 68.5, 75, 83.3, 100, 103, 112, 117, 124, 129, 133.3, 138, 143, 148, 150MHz.
CPU FSB
(By manual Adjustment) 66~150MHz by 1MHz stepping adjustment technology
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
Pentium III 1000EB 1GHz 133MHz 7.5x
Tip: If your system hangs or fails to boot
because of overclocking, simply use <Home>
key to restore the default setting (433MHz).
Warning: VIA®Apollo
Pro 133A chipset
supports maximum
133MHz FSB and
66MHz AGP clock,
higher clock setting
may cause serious
system damage.
FAN2 Connector

1
Pin 1
Secondary
Slave (4th)
Primary
Master (1st)
Primary
Slave (2nd)
Secondary
Master (3rd)
7. Install DIMM Modules
6. JP23 FSB/PCI Clock Ratio 8. Connecting IDE and Floppy Cables
9. Connecting Front Panel Cable
This jumper is used to specify the relationship of PCI and FSB clock. Generally
speaking, if you are not overclockers, we recommend you to set at the default setting.
This motherboard has four 168-pin DIMM sockets that allow you to install PC100 o
r
PC133 memory up to 2.0GB (or 1.5GB when FSB=133MHz). The AX34 II supports not
only SDRAM but also VCM and Registered DRAM.
Connect 34-pin floppy cable and 40-pin IDE cable to floppy connector FDD and IDE
connector. The blue connector is IDE1 for clear identification. Be careful of the pin1
orientation. Wrong orientation may cause system damage.
Warning: Higher CPU FSB frequency may be
able to increase CPU speed, but you may damage
the CPU or reduce the CPU lifecycle.
Speaker
IDE LED
+
+
+
SPWR
+
+ ACPI & PWR
LED
Reset
1
SPWR
GND
ACPI & PWR LED
GND
+5V
NC
NC
GND
RESET
GND
NC
NC
+5
V
IDE LED
IDE LED
+5
V
+5
V
GND
NC
SPEAKE
R
A
ttach 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.
DIMM1
DIMM2
DIMM3
DIMM4
Auto
(Default)
FSB=133~150MHz FSB=100~124MHz
FSB=66~83MHz
1
11
11
11
1
JP23 JP29
Tip: The driving capability of new
generation chipset is limited due to the
lack of a memory buffer (to improve
p
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 only
DIMMs that are less than 18 chips.
ATA 33/66/100 IDE
Connector
FDD Connector
Pin 1

The ATX power supply uses 20-pin connector shown below. Make sure you plug in the
right direction.
12. Connecting CD / MODEM / VIDEO-AUDIO-IN Connector
13. Front Panel Audio
10. Connecting ATX Power Connector
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. By the way, please remove
the jumper cap from the Front Panel Audio Connector before you connect the cable. Do
not remove this yellow jumper cap if housing without an audio port on the front panel.
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.
VIDEO-AUDIO-IN
(Green)
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-CN
(Red)
CD-IN (Black)
+5V
+5V
+5V
+5V
+3.3V
+3.3V
+3.3V
COM
COM COM
COM
COM COM -5V
COM
-12V
PS-ON
PW-OK
+12V
5VSB
Pin 1 Pin 1
MIC_IN2
VREFOUT
PHONE_R
NC
PHONE_L
GND
+5V
NC
NC
1 2
9 10
+5V
NC
IRRX
GND
IRTX
NC
1
2
3
4
5
6

A
fter 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 Setup Defaults" for recommended optimal performance.
14. Power-on and Load BIOS Setup
15. AOpen Bonus Pack CD 17. BIOS Upgrade
A
Open Easy Flash is more use
r
-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,
AX34II102.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, AX4II102.BIN & AX34II102.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:> AX34II102 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 BIOS
content after flashing. The original BIOS setting and Win95/Win98 PnP information
will be refreshed and you probably need to re-configure your system.
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
y
our system components (CPU, DRAM,
HDD, etc.) are good enough for turbo
settin
g
.
This motherboard comes with an AD 1885 AC97 CODEC, you can find the audio drive
r
from the Bonus Pack CD disc auto-run 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
AX34 II R1.00 Dec. 28. 2000 AOpen Inc.
A
ward Plug and Play BIOS Extension v1.0A
Copyright © 1998, Award Software, Inc.
Model name and BIOS version can be found on upper left corner of first boot screen
(POST screen). For example:
AX34 II 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
r
or local distributor for repairing.
Perhaps your VGA card or monito
r
is defective.
No
Yes
No
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
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
s
y
stem reboots.
Turn off the system and
re-connect the IDE cable.
Check if the system can
reboot successfully.
End
No
No
P/N: 91.88110.201 is part number, S/N: 91949378KN73 is serial number.
Part No. Serial No.
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
p
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!
A
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
1
1
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
2
2
FAQ: The latest FAQ (Frequently Asked Questions) may contain a
solution to your problem.
http://www.aopen.com.tw/tech/faq/default.htm
5
5
Download Software: Check out this table to get the latest updated
BIOS/utility and drivers.
http://www.aopen.com.tw/tech/download/default.htm
3
3
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
4
4
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 efficien n important reference for
you if next time you want to buy something else from them.
6
6
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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7
Web Site: www.aopen.com
E-mail: Send us email by going through the contact form below.
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merica
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