Q&A for How to Replace the Battery in Your PC

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Question

How do I check to see if a PC battery is dead?

Community Answer

There will be an alert on the start-up BIOS screen. If there is a built-in speaker, it will make a constant beep sound.

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Question

How do I find the CMOS battery in my computer?

Community Answer

Every computer's CMOS battery is on the motherboard. If you're having a problem locating yours, check the computer manufacturer's website (or the maker of your motherboard if it's an upgrade or home-built) for the manual, which shows its location.

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Question

Do I have to remove all the screws to get to the battery?

Community Answer

Yes.

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Question

Are BIOS settings lost when the BIOS battery is removed?

Community Answer

This only changes the date and time.

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Question

How do I enter in BIOS setup on a desktop computer?

Community Answer

The computer will tell you which button to press when booting up. For some, it's F12. Others may be F9 or even the Del button. Watch the machine at bootup to determine which key to press.

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