How to Reset the BIOS on an ASUS P5B Deluxe

Written by jedadiah casey
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The BIOS on a computer motherboard stores a variety of settings relating to the hardware and overall functioning of the computer. For example, information about the number of hard drives and type of drives mounted on the system is configured in the BIOS. In addition, you can select which drive should boot first when the computer starts up. Reset the BIOS on an ASUS P5B Deluxe motherboard to the factory defaults to reconfigure the settings as needed.

Skill level:
Moderately Easy


  1. 1

    Shut down the computer and unplug the power cord.

  2. 2

    Remove the side cover from the computer case. Some covers are secured by screws; others have a lever on the back of the case.

  3. 3

    Move the "CMOS reset" jumper to the "clear" position for five seconds, then return it to its original position. The jumper is located by the battery. Refer to the motherboard's user manual for details. The BIOS is now reset.

  4. 4

    Refasten the side cover of the computer case.

  5. 5

    Power on the computer and press the "Del" key to enter the BIOS set-up page and reconfigure the settings.

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