AOpen SX34G User Manual
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System FLASH BIOS
RJ45 Jac
RJ45 Jack
FAN4 Connecto
VGA Connecto
System FAN
JP5 VGA IRQ Jumpe
Low ESR Capacitors
VIA VT82C686B (SB)
IPMI ROM
FAN1 Connector
System FAN
370-pin CPU Socket with Voltage &
Frequency Auto-detection
supports Intel
®
Pentium™ III
(Both Coppermine & Tualatin are supported)
168-pin DIMM Socket x 3 supports
PC133 SDRAM maximum up to 3 GB
FAN3 Connecto
VIA 694T (NB)
CPU FAN x 2
Slim-type Floppy Diskette drive
JP3 CMOS Clear Jump
32 Bit PCI Slot x 2
TX 20-pin Power Connector
Power supply Fan Sensor
100W PFC Switching Power supply
RAID Channel x2
USB Connecto
Slim-type CD-ROM drive
CD-ROM Connector
TA 100 IDE Connector
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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.
1. JP3 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.
3. Locate JP3 and short pins 2-3 for a few seconds.
4. Return JP3 to its normal setting by shorting pin 1 & pin 2.
5. Connect ATX power cable back.
User Manual x 1
IDE ATA Cable x 2
Heat-sink x 1
Screw Package (10 HDD Screws)
Bonus Pack CD x 1
This Easy Installation Guide x 1
One set rubber feet (4)
PART NO: 90.53F30.001 DOC. NO: SX34-EG-E0112A
Normal
default)
Clear CMOS
2. Installing CPU & System Fan
There are four system FAN connectors provided by Fortress1100 system. Each of them is a 3-pin
connector, which brings the failure report, 12V power and ground. The system FAN is designed with
redundanc
FAN4 Connector
FAN3 Connector
SENSOR
to prevent thermal disaster caused by FAN failure.
GND
+12V
SENSOR
GND
+12V
FAN1 Connector
Fan2 Connector
Note: Some CPU fans do not have
sensor pin so they cannot support fan
monitoring.
GND
+12V
SENSOR
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 lever 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 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.
4. Supported CPU Type
Fortress1100 supports one Coppermine (up to 1 GHz with 256 L2 cache) or Tualatin
(up to 1.26 GHz with 512K L2 cache) processor with external FSB up to 133 MHz.
Item Frequency 128KB 256KB 512KB
Coppermine 800MHz YES YES NO
Coppermine 866MHz YES YES NO
Coppermine 933MHz YES YES NO
Coppermine 1GHz YES YES NO
Coppermine 1.13GHz YES YES NO
Coppermine 1.26GHz YES YES NO
Tualatin 1GHz NO YES YES
Tualatin 1.13GHz NO YES YES
Tualatin 1.20GHz NO YES YES
Tualatin 1.26GHz NO YES YES
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, the system can detect the CPU frequency
automatically, and no jumpers or switches are needed.
BIOS Setup > Frequency / Voltage Control > CPU Speed Setup
Core Frequency = CPU FSB Clock * CPU Ratio
CPU CPU Core
Frequency
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
FSB Clock Ratio
Warning: We strongly
recommend you do
not overclocking your
CPU and system for
get more system
reliability.
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