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CMOS Error on boot

D

DNR

n00b
Joined
Aug 31, 2010
Messages
29
I'm working on a friend's computer and running into the following problem. At boot up the motherboard (MSI 785GT-E63) gives the following error:

"CMOS Battery Low"

then the option to either go to setup or run with defaults. If I run with defaults it boots to windows xp desktop without a problem but the system date is wrong.

I've done the following:

-Cleared CMOS (Including powering down, unplugging, remove CMOS battery, resetting CMOS, etc..)
-Run with motherboard's default/safe settings (it's never been overclocked).
-Set the correct time in the BIOS
-Replaced the CMOS battery...twice
-Flashed the motherboard to the most recent bios
-Looked for loose RAM, wires, CPU

Any ideas? Could the motherboard be failing?

Thanks


08/05/2012 Update-Tried everything I could think of plus the suggestions from Dookey and ended up scrapping the motherboard. Got a cpu/motherboard combo from Micro Center AMD Phenom X4 965, Asus M59A7, and 4gigX2 Kingston Ram. Everything boots up and installing W7 Home as I type. Thanks for the help.
 
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Sometimes even replacement batteries can be beyond their shelf life. Maybe that's the problem with the 2 you purchased. Maybe buy 1 more from a different store and give that a shot. If that doesn't do it then the board may be going bad.
 
Just got back from the store with a new CMOS battery and still having the same problem. I doubt that I've gotten three bad batteries in a row from different stores. I could check them with a volt meter to be sure but I'm guessing they are within spec.

It's one of the odder problems I've run into...usually switching out the CMOS battery takes care of it. Any other ideas?
 
Yeah, since you've tried batteries from 2 different sources you've ruled out a battery problem.

Last thing I can think of is to pull the motherboard out of the case and run it naked with just a vid card and cpu/ram in it. By doing this you eliminate most chances of a random short somewhere. If it still does it after this you have a faulty board. Set the board on a wooden table or a cardboard box when doing this.
 
Well I've tried everything else...looks like I'll pull the motherboard. Can't figure out how it decided to die. I know my friend's son was playing the hell out of Left For Dead 2 but I don't see that killing the motherboard. My one hope is that I see something when I pull it apart otherwise the system is going to need some major work.
 
Damn thing gave me the same error. Off to microcenter for a combo cpu/motherboard deal. Thanks for the help.
 
Sorry bro. Sometimes stuff happens. Update the OP with your replacement gear.
 
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