MacBook Air Heat Sink

Discussion in 'MacBook Air' started by nico2205, Mar 13, 2015.

  1. nico2205 macrumors newbie

    Joined:
    Jan 14, 2015
    #1
    Hi guys!
    After I once opened my MBA Mid 2013 to put on a better thermal paste, I've always wondered why Apple did not apply any thermal paste on the graphic part of the chip?... And if I would gain any performance (I do play games on it from time to time ...) if I would apply some paste on the GPU side of the chip too ....
     
  2. motrek macrumors 68020

    Joined:
    Sep 14, 2012
    #2
    Interesting question because the graphics are on-die and there's almost no way to tell which side/corner of the die is the "graphics part"... so I suspect you are referring to a different chip or something else... can you post a picture?
     
  3. nico2205 thread starter macrumors newbie

    Joined:
    Jan 14, 2015
    #3
    Hi - sure
    On the pic (source: ifixit teardown of MBA 13" 2013) you see the SoC unit; (I'm guessing-) the (bigger-) red circled part of the chip is the CPU and the smaller, orange circled is the GPU part ...
    So when I opened my MBA, only the red marked part of the chip was covered with thermal paste ... (and other MBA users report the same...)

    [​IMG]
     
  4. motrek macrumors 68020

    Joined:
    Sep 14, 2012
    #4
    No, the graphics are still integrated onto the die. Whatever that is, it's not graphics.

    Okay, I checked the iFixit teardown and they say this other die is the Platform Controller Hub, whatever that is.

    Anyway apparently it doesn't get very hot because it wasn't on-chip before and it didn't have a heatsink so they must not put thermal paste on it because it doesn't matter.
     
  5. Gav2k macrumors G3

    Gav2k

    Joined:
    Jul 24, 2009
    #5
    As above its just the platform controller hub which replaces the North and South bridge from older systems bring it into the chip to reduce latency. I wouldn't recommend putting paste on it as the cpu will actually heat it up
     
  6. nico2205 thread starter macrumors newbie

    Joined:
    Jan 14, 2015

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