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Windows 7: Lagging Windows clock Not in BIOS

24 Apr 2015   #1

Windows 7 Ultimate 64 bit
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!

My System SpecsSystem Spec
24 Apr 2015   #2

7 Pro x64, 10 Pro x64

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.
My System SpecsSystem Spec

 Lagging Windows clock Not in BIOS

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