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Hardware Thread, BIOS not keeping time in Technical; Hey guys, Having an Issue with a personal PC, the BIOS doesnt keep correct time and will randomly change settings ...
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    BIOS not keeping time

    Hey guys,

    Having an Issue with a personal PC, the BIOS doesnt keep correct time and will randomly change settings

    If the PC has been off for a short time, The time should be fine
    If its been off for a few hours, the time will typically be in the future (ie it says its october 2010 - all the way to 2055 once!)
    finally if its been off overnight the time will show as 00:00:00 on september 7th 2006 (presumably the Manufacturing date) additionally in this instance the onboard LAN will be disabled.

    additionally when I reset the time in BIOS the system will typically lose half an hour during boot, so the time is out on the windows desktop.

    in all these circumstances not all BIOS settings will be default - for instance I've disabled the onboard Serial ports since I dont use them and these will always be disabled.

    I have changed the BIOS battery for a known good one, with no difference in operation.

    This has occurred with both Windows XP (x86) and Windows 7 x64

    Anyone got any Ideas?

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    My suggestion would have been the battery. Other than that have you upgraded the BIOS to the latest version?

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    BIOS is already the latest version

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    IrritableTech's Avatar
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    Is the clear CMOS jumper in the correct place?

    If it's a button it could be faulty and clearing constantly.

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    CHecked the CMOS clear jumper, and tried it in the other position (system wont boot) also tried a different jumper incase the supplied one was faulty

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    IrritableTech's Avatar
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    Faulty CMOS memory or circuit I'd say then.

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    That's it - I'm going mad
    I read the thread title as 'Bios not keeping time' as in musical beats and I briefly wondered what it was trying to sing......
    need to get out

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