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CMOS Checksum bad


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#1 john1816

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Posted 27 January 2013 - 07:39 AM

Hello,

After having my computer freeze in a middle of a game, I had no other choice but to hit the reset button. I then got a CMOS Checksum bad error - I tried resetting CMOS through the jumper and the computer loaded all the way until it wouldn't go load the Windows XP loading screen (shows only a black screen instead). I've replaced the CMOS battery with a new one months ago when I experienced the same situation and had it repaired in a computer shop so I didn't know how they were able to workaround it. I've set back the proper time/date in BIOS but still ends up being stuck. My motherboard is an MSI P35Neo-F

Any help?

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#2 dc3

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Posted 27 January 2013 - 10:46 AM

The CMOS battery is what keeps the proper time, if your time isn't staying current then you should replace the battery. I know that you recently replaced it, but it could have been sitting around long enough to effect its longevity.

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#3 john1816

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Posted 27 January 2013 - 12:19 PM

My time seems to be staying current not unless i attempt another CMOS reset. When i restart my computer and hit del to reach the bios it still stays the same. I think it might have something to do with my CMOS values - i just tried the "Load Optimal Defaults" setting in the BIOS menu after resetting CMOS. My motherboard is about 4 years old and usually when my computer freezes back then, I restart with no problem of getting the CMOS bad checksum error.

I'll have my battery replaced again and see if it helps.

Edited by john1816, 27 January 2013 - 12:22 PM.


#4 john1816

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Posted 03 February 2013 - 12:22 AM

Problem solved. It was the way how I reset CMOS and didn't need to change the battery, thanks for the help :)




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