How to Replace an ASUS Motherboard Battery

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ASUS motherboards, manufactured for both Intel and AMD processors, are a popular choice for custom-built computers. The motherboard's battery is a flat, round 3-volt lithium battery. This battery, which is installed in a special motherboard socket, powers up CMOS (complementary metal--oxide--semiconductor). CMOS is an integrated motherboard chip that stores current BIOS (Basic Input/Output System) settings, such as system date and time. A CMOS battery may last for many years, but eventually dies. So you need to replace it.

Skill level:
Moderately Easy

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Things you need

  • New CMOS battery

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  1. 1

    Purchase a new CMOS battery available from many retailers (see Resources section). ASUS motherboards typically use a lithium CR2032 battery.

  2. 2

    Turn off the computer.

  3. 3

    Remove the computer case side panel.

  4. 4

    Lay the computer on its side.

  5. 5

    Find the CMOS battery that is situated in the socket approximately in the centre of the motherboard.

  6. 6

    Touch an unpainted metal part of the computer case or another metal surface to discharge static electricity.

  7. 7

    Lift the CMOS battery out of its socket, using your fingers, and set it aside.

  8. 8

    Insert the new lithium battery gently into the socket. Make sure that the battery's positive pole, marked with a plus sign (+), faces up.

  9. 9

    Move the computer into the upright position and close the side panel of the computer case.

  10. 10

    Press the "Power" button to turn the computer on.

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