chiliGREEN P4VTGM - Manual (Page 56)

P4VTG-M BIOS Setup
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CPU Clock
This item allows you to select CPU Host Clock.
The Choices: 100MHz (Min) (default) ~ 132MHz (Max).
If unfortunately, the system’s frequency that you are selected is
not functioning, there are two methods of booting-up the system.
Method 1: Clear the CMOS data by setting the JCMOS1 ((2-3) closed)) as
“ON” status. All the CMOS data will be loaded as defaults setting.
Method 2: Press the key and Power button simultaneously, after that
keep-on pressing the key until the power-on screen showed. This
action will boot-up the system according to FSB of the processor.