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Tutorials | BIOS checksum error press F1 to continue

Publish date: 28th July 2005
Written by: Postcode
Audience intended for: Hardware

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When I boot the BIOS all it says is "BIOS checksum error, press F1 to continue.... What should I do? This is a result of the CMOS losing the data that it was holding. There are a few ways that this can be encountered. After flashing a BIOS, loss of battery power, an electrical surge or bad power to name a few. Typically, this is a problem with the CMOS battery running low. The result is usually discovered after the system has been off for a few hours or longer. Replace the battery located on the motherboard:

If you just performed a flashing of the BIOS, use the jumper on the motherboard to clear the CMOS. You can also enter the BIOS and choose "Load BIOS Defaults".

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