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Thread ID: 79141 2007-05-09 10:44:00 System time resetting itself borax (7078) Press F1
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548622 2007-05-09 10:44:00 I have a PC running XP Home. If the machine is powered down the clock/date resets itself to January 2001. I have changed the CMOS battery which hasn't helped also the automatic time update thingy is turned on OK but for some reason the clock keeps changing, any ideas??? borax (7078)
548623 2007-05-09 10:48:00 I take it u saved the settings in the BIOS after u configured everything?

Only other thing it maybe is the jumper on the mobo is on the wrong jumper.
Speedy Gonzales (78)
548624 2007-05-09 12:45:00 What motherboard model do you have? GoodHour (12218)
548625 2007-05-10 02:22:00 yes the BIOS was saved but this has made no difference?? I'll have a look to see if there are any jumper settings.

Also the same computer starts up as soon as you turn on the power at the wall. You dont need to press the on button on the front, could this, tied in with the time issue, indicate that the mobo is on the way out???

not too sure what the mobo is, i will check it out and report back

cheers
borax (7078)
548626 2007-05-10 02:29:00 The on/off button is most probably sticking why it turns on when u turn the power on at the wall.

I doubt the mobo is stuffed. Or else you'll be lucky if it turned on, or worked at all.

When you replaced the battery did u remove the CMOS jumper on the mobo??
Speedy Gonzales (78)
548627 2007-05-10 05:45:00 ...

Also the same computer starts up as soon as you turn on the power at the wall. You dont need to press the on button on the front, could this, tied in with the time issue, indicate that the mobo is on the way out???
...
cheers

This could be some settings in the BIOS. Can't remember exactly, but it has something to do with the " ... when power fails, the system will start automatically .." or something to that effect. Disable this if it is enabled.
bk T (215)
548628 2007-05-10 06:56:00 The clock problem indicates that the hardware clock is not going. I don't think there's a way to turn it off; it either goes or it doesn't, depending on the condition of the lithium button cell. Does the BIOS setup page show the time as having started at 00:00:00 on Jan 1 2001? Graham L (2)
548629 2007-05-10 07:07:00 Thats true, did u change the time in the BIOS, FIRST??

If u didnt thats what the prob will be.
Speedy Gonzales (78)
548630 2007-05-11 05:33:00 If the time and date have been changed in the OS, the new values will be pushed to the hardware clock. I'm pretty sure that is done whenever the OS is shut down, too. Most people don't know how to change the clock in the BIOS. The vast majority of PC users have never seen the BIOS setup pages.

Perhaps the new lithium cell was no good. ;)
Graham L (2)
548631 2007-05-14 10:02:00 So, i have changed the CMOS battery and changed and saved the clock in BIOS, I rebooted the machine (and unplugged from the wall too) Windows started and all was good. It also didn't start-up into Windows as soon as the switched was turned on at the wall, so both problems resolved.
An hour later i turned the PC off, unpluged from the wall, and then re-started. Lo and behold the BIOS clock had reverted back to 1st Jan 2001 00:00 and the machine was booting up as soon as it was powered at the wall (and no the power button on the case isn't stuck in) :confused:
borax (7078)
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