CMOS checksum error
"When I boot up, I get a "CMOS checksum error" message and I must press F1 to continue or DELETE to enter Setup. How can I solve this problem?" |
Most likely the battery on your system board is kaput. They are cheap, easy to find at most electronics retailers, and pretty simple to replace.
After opening the case of your system unit, look for something about the size and shape of a quarter mounted on the system board. Usually the battery sits under a tight clip and you can remove it by lifting the clip. Sometimes they snap into a socket and you have to push a little tab to release them.
After replacing the battery, start up your computer and press the appropriate key to enter the BIOS setup screen. (Usually it's the DELETE or INSERT key. Watch the screen for instructions or consult your manual.)
Set the system clock to the correct time, then save and exit. If your computer works normally now, you're all done. If it doesn't recognize one or more hard drives, go back into Setup and look for the hard drive "Auto config" or similar. Sorry if that's a little vague, but every BIOS is different, so it's impossible to give more detailed instructions. Poke around a bit, you'll find it!
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Posted by Bob Rankin on 28 Jun 2005
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Article information: AskBobRankin -- CMOS checksum error (Posted: 28 Jun 2005)
Source: http://askbobrankin.com/cmos_checksum_error.html
Copyright © 2005 - Bob Rankin - All Rights Reserved
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Most recent comments on "CMOS checksum error"
(See all 25 comments for this article.)Posted by:
Racecar56
24 May 2010
@ everybody with a "i replaced the battery but it still fusses" problem
Your motherboard's CMOS reset jumper might be on the reset position. Fix that ASAP. Check the motherboard's manual (if any).
If you don't know what any of this means, then it shouldn't be the problem.
Posted by:
julia
17 Jul 2010
Thank you so much for the post! Fixed my problem with "cmos checksum error"!!! When I read "setting system clock" after changing the battery, I was like, right, like that's gonna do anything. And it did!!! I set the system clock and saved settings, and it worked!
Posted by:
William Wong
12 Sep 2010
Help! I sometimes get CMOS Checksum Error. Defaults Loaded. I've just recently changed the battery and the same thing keeps appearing! Yet, sometimes there is no error when booting up! Please help!
Posted by:
madhawa
02 Nov 2010
when the starup my moniter display CMOS CHECK SOM ERROW msg, and also my key board not working.help me.......
Posted by:
Bikash
04 Nov 2010
Hi, I am using Gigabyte GA-8I915-GV motherboard and I have been facing CMOS checksum error... i have changed my battery n also I have short CMOS jumper but still I facing the problem what should I do! -Thank u!
Posted by:
Amit
15 Nov 2010
I am facing problem whenever i startup my pc the error displays as "CMOS Checkksum error"
Posted by:
Mohd
25 Dec 2010
When I boot up, I get a "CMOS checksum error" message and I must press F1 to continue or DELETE to enter Setup. How can I solve this problem?"
i replaced my cmos battery and i still have to set time and date on every time
Posted by:
Mohd
25 Dec 2010
"When I boot up, I get a "CMOS checksum error" message and I must press F1 to continue or DELETE to enter Setup. How can I solve this problem?"
i replaced my cmos battery and i still have to set time and date on every time & when i press start key for system staring & system take more time to start.
Posted by:
jiffry
11 Apr 2011
Dear sir,
Hi, I am using foxconn G31 MXP mother board. when i start my computer CMOS checksum error-Default loaded Press F1 to continue. sir help me,what i have to correct setting to solve this problem and i am expecting your reply please
thanks
with best regards
jiffry
Posted by:
prakhar lohar
01 Oct 2011
Hi , I am facing problem whenever i startup my pc the error displays as "CMOS Chksum error " . I have changed CMOS battery also still this error displays ,plz help me.