cmos battery failure?

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ginjififi

Honorable
Mar 31, 2013
16
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10,510
So basically my computer decided to restart and came up with a screen that says CMOS checksum bad. After a few times of being able to power on it without error. My fan starts behaving like an engine. And as of now,I am unable to boot up my com. Any idea on what to do?
Thanks in advance!
 
Solution
smorizio
A dead CMOS battery will cause data and time not to hold. The message you got is a bios chip failure. You can try power off and drain power to the mb. Clear the CMOS then reflash it with the newest bios. If the fan issue still there contact the mb vendor for rma or new bios chip. Some mb you can swap the chip. eBay has a lot of vendors selling replacement bios chips cheap if your mb out of warranty.
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smorizio

smorizio

Titan
Jan 22, 2010
30,984
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A dead CMOS battery will cause data and time not to hold. The message you got is a bios chip failure. You can try power off and drain power to the mb. Clear the CMOS then reflash it with the newest bios. If the fan issue still there contact the mb vendor for rma or new bios chip. Some mb you can swap the chip. eBay has a lot of vendors selling replacement bios chips cheap if your mb out of warranty.
 
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Solution
G

ginjififi

Honorable
Mar 31, 2013
16
0
10,510


Thanks for replying. A few minute ago,I tried booting it up. It came up with 0037 at the bottom right of my com and just hang there.
 
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deejay_catalin

Honorable
Oct 28, 2013
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0
10,510
i had the same problem with an asus p5n e sli motherboard and i solved the problem by using an old mp3 player that had a rechargable 3.3 v li-ion battery and connected it instead of the original battery using the mp3 to charge it connected to the 5v usb on the mobo when the computer is on
so no more problem since then almost an year now :)
 
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