Gigabyte GA-6PMM User Manual page 18

6PMM Series Motherboard
Intel Processor all have locked Frequency Multiple, so you can not change the CPU
Frequency Multiple.
For Auto Jumper Setting:
Note:
1. If you use 66/100/133 MHz CPU, We recommend you to setup your system speed to
"Auto" value.
TM
1. Celeron 533/ 66 MHz FSB
1 2 3 4
ON
SW2
ON
11
SW1
ON
SW1