(Solved) i5 stuck at 1.6GHZ under heavy load

Discussion in 'iMac' started by GMacUser, Mar 12, 2014.

  1. GMacUser, Mar 12, 2014
    Last edited: Mar 16, 2014

    GMacUser macrumors newbie

    Joined:
    Feb 26, 2014
    #1
    Title says it all. I first noticed this a while back after downloading 3D mark on steam. Temps have been consistently under 42 degrees Celsius.

    [​IMG]
    :confused::confused:

    I then wondered if it was just the cpu throttling or it just didn't need to clock faster... and that it would turbo boost eventually.

    So I ran 4 simultaneous dolphin emulations to put my CPU at 100% load and used a few programs to analyze the frequency. It never budged.

    [​IMG]

    I ran a similar experiment in OSX by running 20+ CPU vs CPU chess matches. I usesd the Intel(r)Power Gadget to look at the clock speed and activity monitor for the CPU load data. It was, again, stuck at 1.6GHZ no matter what I did...

    [​IMG]

    Could anyone help me find a solution? This is really hurting my iMac's usefulness. My hunch is that it is a firmware or EFI issue..? I'm not well versed in these things so any tips with troubleshooting this would be great! :)
     
  2. GMacUser, Mar 13, 2014
    Last edited: Mar 13, 2014

    GMacUser thread starter macrumors newbie

    Joined:
    Feb 26, 2014

Share This Page