kernel_task causing 70% CPU usage???

Discussion in 'Mac Apps and Mac App Store' started by epicwelshman, Apr 24, 2013.

  1. epicwelshman, Apr 24, 2013
    Last edited: Apr 24, 2013

    macrumors 6502a

    epicwelshman

    Joined:
    Apr 6, 2006
    Location:
    Nassau, Bahamas
    #1
    Hello all,

    I'm having problems with my late-2011 15" MBP. After a couple hours of usage the computer becomes very, very slow. I noticed in the Activity Monitor that the kernel_task is using 500% of the CPU (seems weird, but anyway), causing my system CPU usage to bounce to 70%.

    In case it's relevant, my MBP battery is 100% dead. We've ordered a new one, but until it comes I'm running on A/C power exclusively.

    Any ideas of how to solve? Screenshot is below.

    Cheers.

    [​IMG]
     
  2. thread starter macrumors 6502a

    epicwelshman

    Joined:
    Apr 6, 2006
    Location:
    Nassau, Bahamas
    #2
    I've also tried resetting the SMC, with no luck. I get about an hour of good usage out of the laptop before it grinds to a halt.
     
  3. macrumors 6502a

    Joined:
    Jul 27, 2011
    Location:
    Lucky Country

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