DFI-ITOX G4V300-D User Manual page 81

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.
Overclocking may result to the processor’s or system’s
instability and are not guaranteed to provide better system
performance.
If you selected an option other than the default setting and is unable
to boot up the system, there are 2 methods of booting up the
system and going back to its default setting.
Method 1:
Clear the CMOS data by setting JP4 to 2-3 On. All fields in the
BIOS Setup will automatically be set to their default settings.
Method 2:
Press the <Insert> key and power button simultaneously, then
release the power button first. Keep-on pressing the <Inser t> key
until the power-on screen appears. This will allow the system to boot
according to the FSB of the processor. Now press the <Del> key
to enter the main menu of the BIOS. Select “CPU Frequency
Control” and set the “CPU Clock Ratio” or “CPU Host/3V66/PCI
Clock” field to its default setting or an appropriate frequency ratio or
bus clock.
Use a PS/2 or AT (requires a DIN to mini DIN adapter)
keyboard for method 2.
Award BIOS Setup Utility
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