What would cause my system clock to keep changing?

[Mynzaboxer]

Can someone tell me what would cause my system clock / calendar to keep changing. This past week, I've happened to look down in the right bottom corner a couple of times and, see that it's off by an hour .... check the date and it's off by a month? First couple of times I thought it was me. :-/. This is a new system

Any suggestions on what to check?

Thanks

Intel Core2 CPU 6700, 2.66 GHz@ 2669MHz
HD: Hitachi 500GB
MB: ASUS; P5N32-SLI-SE-Deluxe
MEM: 2048 MB /DDR2<br />GFX: Radeon X1900XTX Crossfire
Monitor: Dell 2407WFP
WinXP Family Ed, SP2
Add'l drives:
PLEXTOR DVDR PX-760A
LITE-ON COMBO SOHC-5236V
Sound: SB X-Fi Audio
600 watt power supply

 

[OVERKILL]

cmos battery maybe

 

[xtknight]

See if the time is off in the BIOS as well.

Dual core CPUs can cause time problems of all sorts, though if you've updated you should be immune. You might try the usepmtimer option.

If you dual-boot two OSes that use a different time standard it can screw up. That's what's happening to me now and I just haven't bothered to find a fix since I hardly use one of them.

An interim fix/hack/workaround is to use one of those atomic clock programs.

If it's off by exactly an hour though something tells me it's GMT time method problems, not the CPU (where the time would be off by a minute more every day or something).

 

[ForumMaster]

look in the BIOS. if the time is wrong in the BIOS, it will reset everytime you reset your computer. also, if you do run two OS'es, as xtknight said, make sure they are syncronized.