AK77-600N

OOnnlliinnee MMaannuuaall

JP20 K7 Host Clock Selection

This jumper is used to specify the relationship of PCI and FSB clock. Generally speaking, if you are not an over-clocker, we recommend you to set it to the default setting. Additionally, this motherboard also provides “1MHz Stepping CPU Adjustment” feature for overclockers to adjust CPU FSB frequency via BIOS setup program. Based on the CPU type, the adjustment range has four levels: 100~129, 130~160, 161~191 and 200-250MHz for your choosing. If you fix the CPU FSB frequency by JP20, the “1MHz Stepping CPU Adjustment” range will be changed and follow the JP20 setting.

Pin 1

JP20 K7 Host Clock

Select Jumper

1 2

FSB100

FSB133

FSB166 FSB200

60