Disable HPET in bootcamp?

Discussion in 'Windows, Linux & Others on the Mac' started by wedda, Aug 24, 2014.

  1. wedda macrumors member

    Aug 11, 2014
    Hello guys,

    I've heard great things about disabling HPET, is this possible?
    I heard you need to enter bios but thats not possible..? =)
  2. maflynn Moderator


    Staff Member

    May 3, 2009
    Macs don't have Bios but EFI and there's no way to access it, AFAIK. I don't think there's any way enable/disable it on a Mac.
  3. wedda thread starter macrumors member

    Aug 11, 2014
    Hello sir,

    bcdedit /deletevalue useplatformclock

    bcdedit /set useplatformclock true

    Using the first of these disables it at least if I should trust wintimertester 1.1.. It says with it enabled my QueryPerformanceFrequency is 14.318 hz and with it disabled I have about 2.3 hz and my DPC latency is lower.. So I would suggest people to try it out, for me it works very well!

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