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Clock keeps resetting

  • Asus
  • Motherboards
Last response: in Motherboards
April 9, 2009 11:23:26 AM


Had a problem for a couple of weeks now.
I have windows XP Pro and my Mobo is an ASUS M2N-E-SLI which is less than a year old.
A few weeks ago after playing a game i had to do a cmos jumper change to get my PC to reboot.

Ever since then every few reboots i notice the time is wrong.
I go into the bios and can see the dates changed to either Dec 31st 2006 or Jan 1st 2007.
I have to manually change this'but again the process will start again a few days later.

Also occasionally i am getting checksum error-defaults loaded.
I know the jumpers on the correct cmos pins and don't really understand why this happens occasionally and not every reboot if there is a problem?

Any ideas?

More about : clock resetting

a c 436 V Motherboard
a b Ĉ ASUS
April 9, 2009 5:48:40 PM

Try changing the motherboard battery. Mine is a 2032, which is available at places like target. They look like watch batteries on many boards.
April 9, 2009 6:01:28 PM

it's most definitely a CMOS battery issue. like o1ldie said, just take out the battery, and goto the store and get a matching one....problem solved....
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April 9, 2009 6:11:49 PM

^+1 for the battery.
August 23, 2010 3:57:43 PM


I had a similar issue with an Asus P5Q Pro - i.e., that a six-month old motherboard kept on losing it's time and BIOS settings (it also wouldn't come out of sleep mode properly). I replaced the battery and it fixed the problem. However, six months later the issue has resurfaced. This seems to be a larger problem at hand; surely it's not normal to have to replace a motherboard's battery every half a year?

Any ideas?

April 8, 2013 2:06:02 PM

My Asus is BRAND new and doing this, what gives?