Clock slowing down


  1. cheerful
    Posts : 16
    Windows 7
       New #1

    Clock slowing down


    The clock slows down about 20 min per day. It's fine before I upgraded to Win7 (along with BIOS update).

    Any suggestion on what's the going on?

    Thanks!
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  3. richc46
    Posts : 17,796
    Windows 10, Home Clean Install
       New #2

    The usual cause is that the CMOS battery is dying and should be replaced. This does more than control time. When the computer is unplugged (desktop) it maintains the settings.
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  4. Mellon Head
    Posts : 3,487
    Win 7 Pro x64/Win 10 Pro x64 dual boot
       New #3

    Isn't there a system timer setting in some BIOSes? It affects the timer interrupt somehow. I don't have it in mine, but I have seen it.

    Maybe the new BIOS set it to a default that isn't using the timer properly?

    Just a guess...
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  6. cheerful
    Posts : 16
    Windows 7
    Thread Starter
       New #4

    It's the freaky BIOS from Gigabyte. Reverted and all normal.
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  7. richc46
    Posts : 17,796
    Windows 10, Home Clean Install
       New #5

    Glad that you solved the problem
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