DFI 748-AL User Manual page 24

2
Hardware Installation
4. After powering-on the system, press <Del> to enter the main
menu of the BIOS.
5. Select the Frequency/Voltage Control submenu and press
<Enter>.
6. Set the "CPU Frequency" or "CPU Ratio" field to its default
setting or an appropriate bus clock or frequency ratio. Refer
to the Frequency/Voltage Control section in chapter 3 for
more information.
7. Press <Esc> to return to the main menu of the BIOS setup
utility. Select "Save & Exit Setup" and press <Enter>.
8. Type <Y> and press <Enter>.
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