CMOS Checksum error on Abit PE-5 \ VOGONS

CMOS Checksum error on Abit PE-5

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First post, by vetz

Posted on 2015-01-26, 12:14

vetz Offline

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Just got a Abit PE-5 (socket 5) motherboard and there is a strange error that keeps occurring.

When I turn on the system the board gives an error: CMOS Checksum Error and turns all the setings in the BIOS to default. If I go into the BIOS and changes a setting and then restarts the system it works without problems. The clock also works fine and I get no error for bad battery. I just replaced the battery on the board.

Could this be an error in the BIOS chip itself that makes it corrupt its data when power is turned off?

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Reply 1 of 3, by HighTreason

Posted on 2015-01-26, 14:34

HighTreason Offline

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This is a long shot, but i have a Socket 4 board that does something like this if LBA and / or Plug and Play are enabled.

Try turning them off.

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Reply 2 of 3, by mockingbird

Posted on 2015-01-26, 21:00

mockingbird Offline

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Can you Clear ESCD and see if that fixes it?

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Reply 3 of 3, by vetz

Posted on 2015-01-27, 08:30

vetz Offline

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Posts: 4410
Joined: 2012-04-23, 17:13

I held down the DS12887 chip with my finger and simultaneously pressed the power on button. It fixed the problem, so there is some bad connection on one of the pins.

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