Advice: Reapply the Thermal Paste!

Discussion in 'MacBook Pro' started by Cattywampus_, Jun 7, 2011.

  1. Cattywampus_ macrumors 6502a

    Apr 19, 2006
    Just some friendly advice to anyone who experiences crazy temps on the Macbook Pro range.

    I have MBP 17" 2.8Ghz - and the CPU would reach 103 degrees Celsius with the fans on full speed - even occasionally when playing games pushing higher than that.

    I was going to call Apple Care and ask them to sort it but knew it would be a long process - so took matters into my own hands.

    Disassembled the MBP using guides from iFixit. Cleaned the chips and the heatsink of the huge goops of paste. Applied my own MX2 - reassembled - crossed fingers and hoped everything worked.

    Good news - it does.

    I am currently running 2 dev/null to max both cores and have got a few HD flash movies running and CPU is averaging 75 degrees Celcius - over 25 degrees drop.

    And to think I tolerated this high temps for all these months :p
  2. xxBURT0Nxx macrumors 68020


    Jul 9, 2009
    what are you considering high temps? I'm just curious.

    For example, I don't game on my mac, but playing hulu, or other flash video sites gets the bottom and top left above the keyboard fairly hot. CPU usage is usually <10% but CPU temps go up to ~160* F.

    With the discrete GPU on GPU temps are around 140* F, integrated usually registers 130* F.

    I don't really have plans to redo the thermal paste because it doesn't really bother me, i don't grab the bottom of the laptop when it's on a desk playing a movie just curious what people are considering "high temps"
  3. NZed macrumors 65816


    Jan 24, 2011
    Canada, Eh?
    Have you blow the fans with compressed air yet? That should also bring down a couple celcius
  4. fat jez macrumors 68000

    fat jez

    Jun 24, 2010
    Glasgow, UK
    Try doing running a Prime 95 stress test. It will generate much more heat, as it's getting the CPU to do some real work. Would be interesting to see what your temperatures reach then.

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