MacBook getting very very hot

Discussion in 'MacBook' started by Karvel, Jul 27, 2009.

  1. Karvel macrumors regular

    Joined:
    Jun 27, 2007
    Location:
    England
    #1
    The underside of my MacBook has been recently getting ridiculously hot but seemingly only the top-left portion of it, not the battery or the optical drive. I installed the iStat Dashboard widget and it gave this:

    [​IMG]
     
  2. uberamd macrumors 68030

    uberamd

    Joined:
    May 26, 2009
    Location:
    Minnesota
    #2
    55C (133F) isn't really hot. When yours reaches around 82C (180F) like my Macbook Air occasionally does, we can talk.
     
  3. toxictrix macrumors 6502a

    Joined:
    Jan 8, 2009
    Location:
    Texas
  4. Karvel thread starter macrumors regular

    Joined:
    Jun 27, 2007
    Location:
    England
    #4
    Oh right =/ well it gets REALLY hot to the touch on the top-left underside portion. And it never used to do this!
     
  5. uberamd macrumors 68030

    uberamd

    Joined:
    May 26, 2009
    Location:
    Minnesota
    #5
    Top Left:

    [​IMG]

    Looks like the CPU and GPU, I'm not surprised. Thats where the work is done.
     
  6. oculus42 macrumors 6502

    Joined:
    Dec 9, 2002
    Location:
    Maine
    #6
    Transcoding?

    Are you doing something more processor-intensive these days?

    When I encoded a DVD in iDVD on my last MacBook Pro, my processor pushed 88°C (190°F).
     
  7. SnowLeopard2008 macrumors 604

    SnowLeopard2008

    Joined:
    Jul 4, 2008
    Location:
    Silicon Valley
    #7
    Mine does that too. I occasionally play the odd game or two and use the 9600M GT instead of the 9400M. Even Sims 3 pushes the temps up.
     
  8. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #8
    Nowhere near the temperature levels where you need to be concerned/worried.
     
  9. fireman13 macrumors 6502

    Joined:
    Aug 12, 2008
    Location:
    Florida Panhandle
    #9
    Agreed. That's not much over a normal operating temp.
     
  10. dnbRem macrumors newbie

    Joined:
    Jul 27, 2009
    Location:
    England
    #10
    I have hit 90 degrees celcius with an aluminium macbook. but that was measuring the sensor on the processor, I cant remember what caused this, but is it bad?
     
  11. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #11
    Probably just means you were doing video encoding or something CPU intensive. The C2D cores are rated upto 105C before they'll automatically shut down.

    The highest I've gotten my UMB 2.0ghz was ~84C on the CPU diode, and that was using Handbrake for some video compression.
     
  12. iStudentUK macrumors 65816

    iStudentUK

    Joined:
    Mar 8, 2009
    Location:
    London
    #12
    That's a reasonable temperature. If it helps I have the latest MacBook (White 2.13 GHz) and it runs around-

    ~40 - Sitting doing nothing
    40-45 - Very light use (eg just safari)
    45-50 - Light (safari + mail)
    50-55 - Medium (safari + mail + itunes + pages)
    55-65 - Quite Heavy (ripping CDs etc)
    ~75 - Highest temp I've had (but only owned it 6 weeks!)

    All are CPU A (I consider the most useful temp) and in degrees celsius (because I'm civilised!)

    Hope that helps.
     
  13. Buzzworms macrumors member

    Buzzworms

    Joined:
    Apr 5, 2008
    Location:
    Tucson, AZ
    #13
    Does anyone use a chill pad/notebook cooler to moderate temps? I've tried a few different brands (Targus recently) w/ my white core duo MB on a table top but didn't note a real difference. Could be some brands work better than others...
     
  14. fireman13 macrumors 6502

    Joined:
    Aug 12, 2008
    Location:
    Florida Panhandle
    #14
    I run a belkin, not sure of the exact name. I use it with smc fan control when watching videos off Hulu or when I'm encoding. It brings it down about 6-7 degrees. I'm not sure which one is working more, but together, they do a pretty good job.
     
  15. qsoundrich macrumors member

    Joined:
    Dec 23, 2007
    #15
    I've recently been having heating problems with my old White Macbook. I'm suspecting that some of the recent updates to Firefox 3.5 have been unusually processor-intensive.
     
  16. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #16
    I haven't noticed anything with FF 3.5.1
     
  17. Nocturnal22 macrumors 6502

    Joined:
    Feb 23, 2009

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