At startup I get "' 0251: System CMOS checksum bad - default configuration used." " How do I fix this?

On startup, I get '0251; System CMOS checksum bad - default configuration used"and I have to reset the date and time. How can I fix this?

Sounds like your bios cmos battery may be defective.

How you replace depends on your PC make and model

Tags: Windows

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