User`s manual
76
3
BIOS Setup
3.1.7.4 Clock By Slight Adjust
This field provides several options for selecting the external sys-
tem bus clock of the processor. The available options allow you
to adjust the processor’s bus clock by 1MHz increment.
Important:
Selecting an external bus clock other than the default setting
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 JP2 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 <Insert>
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/Voltage Control” and set the “CPU Clock Ratio” or
“Clock By Slight Adjust” field to its default setting or an appropri-
ate frequency ratio or bus clock.
Note:
Use a PS/2 or AT (requires a DIN to mini DIN adapter) key-
board for method 2.
3.1.7.5 PCI/AGP Clock Adjust
This field is used to select the AGP clock. The number that ap-
peared before the AGP clock is its corresponding PCI clock. For
example, if you selected “33/66 MHz”, 66MHz is the AGP clock
and 33MHz is the PCI clock.