Lagging Windows clock Not in BIOS


  1. Souths
    Posts : 5
    Windows 7 Ultimate 64 bit
       New #1

    Lagging Windows clock Not in BIOS


    Hello all!

    I have been experiencing significant Windows clock lag. For 1 minute to pass in Windows ~2-3 minutes pass in real time. I just upgraded my CPU to an AMD A8-7600 and BIOS to 2.4 from 2.1 (ASRock A88XFM2 Extreme 4+) because the previous CPU's (AMD A8-6500) GPU unit died on me (STOP 116 error, Thanks again for the BSOD forum helpers). Checked to see if I have a weak battery - would be strange, since I just bought the motherboard in February. The BIOS clock seems to be running fine. Compared it with realtime and no delays (not even a second) during a 15 minute test.

    I have been searching around the net for solutions and found WinTimerTester 1.1.
    Ran it and found that my ratio is way off: 1.5-3
    Depending on "bcdedit /set useplatformclock true" and HPET enabled/disabled in BIOS.
    Also tested the system with DPC Latency Checker and LatencyMon. Both stared out perfectly, but soon started to produce significant errors.

    While searching for a solution I realized that my VLC is significantly stuttering, which could also be due to this latency issue. Interestingly MPC-HC does not reproduce this stuttering.

    I know that I can force the Windows clock to sync every few minutes - this is what I have enabled now - but this is only an interim solution as video playback is still greatly affected.

    Thanks for the help!
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  3. rvcjew
    Posts : 1,992
    10 Pro x64
       New #2

    When you put in the new cpu did you first thing after that put all the bios settings to defaults, and a cmos battery can be dead at any time. Did you check to make sure your cmos battery was at 3 volts and not just working? Those are things that will screw with the clock it sounds like you have a bigger issue though.
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