Tweaking the voltage to overclock from windows 7

Discussion in 'iMac' started by alejandroc19, Apr 3, 2011.

  1. alejandroc19 macrumors newbie

    Oct 17, 2010
    Ok so I've overclocked my imac 5750 to 765 1082 on windows 7. I cant go much farther with that without my screen going black and then fixing itself. I think this is voltage related and I was wondering if anyone has tweaked the voltage to overclock a little more.(safely). What program did you use, what did you have to change, have you had any issues with it, what were you able to overclock to after the volage change ect ect. If anyone has info on this I would love a response. Thanks.
  2. alejandroc19 thread starter macrumors newbie

    Oct 17, 2010
    752 not 765 my mistake.
  3. Chris5488 macrumors regular

    Feb 26, 2011
    Normally, the voltage changes too alongside with the frequency.
    Changing the voltage manually, under Windows, isn't healthy.
    Especially not with an iMac because of the limited cooling options.
  4. alejandroc19 thread starter macrumors newbie

    Oct 17, 2010
    Well I didn't know that about the automatic voltage changing but as for heat I have my fans running on full when I overclock so heat has not been an issue even when playing crysis 2 for a while.

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