How to Replace an ASUS Motherboard Battery

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.

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

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Turn off the computer.

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Remove the computer case side panel.

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Lay the computer on its side.

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

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

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

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

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

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Press the “Power” button to turn the computer on.