Computer's clock keeps getting out of sync - CMOS Battery problem?

[Psycho Savager]

I built my computer 3 years ago and have used it pretty heavily since. Since a few days ago, every time I it on, I find that the clock is not at the correct time and I have to manually resynchronise it.

I was wondering if this was a fault of the CMOS battery but nothing else seems to be out or order.

Motherboard is Gigabyte GA-G33M-DS2R.

 

[mavroxur]

Replace the CMOS battery. It's most likely a CR2032 battery, available at any hardware store, or Walmart.

 

[terrimaree]

I had a phone modem that went bad once. As long as it was installed, the clock came up wrong each time it booted. Left the modem out, and clock worked fine.

 

[clutchc]

The battery would be the first thing to try.

 

[cyclops123]

definitely the CMos battery.