DFI PS82-BC/BL, Руководство пользователя

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Award BIOS Setup Utility
3.1.8.4 Clock By Slight Adjust
This field provides several options for selecting the external system
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 JP3 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
Control” and set the “CPU Clock Ratio” or “Clock By Slight Adjust”
field to its default setting or an appropriate frequency ratio or bus
clock.
Note:
Use a PS/2 or AT (requires a DIN to mini DIN adapter)
keyboard for method 2.
3.1.8.5 Async AGP/PCI/SRC CLK
This field is used to select the bus clock of the AGP, PCI and SATA.