DFI-ITOX G4V620-N User Manual page 82

3
Award BIOS Setup Utility
3.1.8.4 CPU Host/3V66/PCI Clock
This field provides several options for selecting the external system
bus clock of the processor. The AGP clock and PCI clock will at the
same time appear next to the external bus clock selected. For
example, if you selected "100/66/33MHz", "100" is the external bus
clock, "66" is the AGP clock and "33" is the PCI clock. The default
setting is "Default". Under this setting, the system will run according
to the processor's clock frequency.
If you selected an option other than the default setting and is unable
to boot up the system, clear the CMOS data by setting JP3 to 2-3
On. All fields in the BIOS Setup will automatically be set to their
default settings.
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Important:
Overclocking may result to the processor's or system's
instability and are not guaranteed to provide better system
performance.