Very Strange System Time Change

Here's a good one that has me stumped.  I have a PIII 450 that is set up on our domain as a backup server.  It just runs the daily backup and transfers it to DVD every evening.  Only the administrator has access.  Here is the problem:  Every single time we reboot this box, the clock jumps ahead 9 minutes, 21 seconds.  I dutifully reset the clock with Atomic Clock Sync, and at some point (usually within the hour), it will eventually jump ahead again.  9 minutes, 21 seconds.  Every time, like clockwork (pun intended).  Any ideas?
timabeAsked:
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blacksteelConnect With a Mentor Commented:
I would replace the CMOS battery on the board. The battery helps keep time and BIOS settings. I think the battery is beginning to fail slowly and the clock settings keep changing. The CMOS battery is a cheap fix and you can replace it easily. It might fix the problem, but it's worth trying anyway, plus you might be replacing an almost dead CMOS battery. I think the batteries cost at the most $8 or less to replace, so it's not exspensive. Good Luck!

Black
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haossCommented:
The Time Zone is correct?
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CallandorCommented:
Is there a time server on the network that is sync'ing the machine?  Do you have a service running in the background to do this?
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timabeAuthor Commented:
No time server running and yes, the time zone is correct.
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ridCommented:
If possible, try inhibiting boot, or boot with a DOS floppy or so, and see if it keeps time OK for a few hours. Then you can suspect your O/S or a service to be the problem here. There was another thread somewhere here on EE about a system that began counting several minutes each second, due to some windows service (wintime?) that didn't work OK. I think... The HW clock was running to time anyway. Or does your HW clock change time too?
/RID
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compfixer101Commented:
go in to the clock setting cvlick on the clock several times and uncheck the box for update time settings to daylight savings time    also it might be something else in there i dono i run win98se so dono what you are running
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tpilgCommented:
I once had a scanner that jumped the time a fixed time every time I used it. The point is, it is possible for a programme/driver to mess up the clock, even if it has nothing to do with clock management, especially if there is a bug in it. Is there a service running at these times your clock goes awry.
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compfixer101Commented:
if it is a lithium battary or a silver round one
it is just a watch battery i think i have the same one in my watch a CR2032

/Compfixer101
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timabeAuthor Commented:
It turned out to be a dying CMOS battery on our domain controller.  Bad time on domain controller = bad time on any pc on that domain.  The backup box was the only pc on that particular domain.  Thanks!
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