C-1 
Appendix C 
Jumper Table Summary 
Selecting the CPU Frequency 
This motherboard is jumper-less design. The only jumper left is Clear CMOS, 
which is reserved in case you forget your password. 
The CPU frequency selection is set by going into: 
BOIS Setup à Chipset Features Setup à CPU Clock Frequency 
(The possible setting is 66, 68.5, 75 and 83.3 MHz) 
BOIS Setup à Chipset Features Setup à CPU Clock Ratio 
(The possible setting is 1.5x, 2x, 2.5x, 3x, 3.5x, 4x, 4.5x, 5x, 5.5x, 6x, 6.5x, 7x, 
7.5x, and 8x) 
INTEL Pentium II CPU Core Frequency Ratio External Bus Clock 
Klamath 233 233MHz = 3.5x 66MHz 
Klamath 266 266MHz = 4x 66MHz 
Klamath 300 300MHz = 4.5x 66MHz 
Klamath 333 333MHz = 5x 66MHz 
Celeron 266 266MHz= 4x 66MHz 
Celeron 300 300MHz 4.5x 66MHz 
Selecting the CPU Voltage 
This motherboard supports Pentium II (Klamath) VID function, the CPU core 
voltage is automatically detected, the range is from 1.3V to 3.5V.

Jumper Table Summary 
C-2 
Clear CMOS 
JP14 
1-2 
2-3 
Clear CMOS 
Normal operation (default) 
Clear CMOS 
Tip: If your system hangs or fails to boot because of overclocking, 
simply use <Home> key to restore to the default 
setting (233MHz). By this smart design, it would be more 
convenient to clear CPU frequency setting. For using this 
function, you just need to press <Home> key first and then 
press Power button at the same time. Please note that do 
not release <Home> key until POST sreen appearing .