Tiny MBP heatsink.

Discussion in 'Mac Pro' started by mmmcheese, Feb 22, 2006.

  1. mmmcheese macrumors 6502a


    Feb 17, 2006
    So I'm looking through the MBP service manual (http://forums.macrumors.com/showthread.php?p=2166412&posted=1) and there are some very interesting tidbits in there.

    Check out the size of the heatsink in the MBP. It's basically three tiny metal contact points on a heat pipe and a couple of small radiators at the end. Apparently it's enough cooling for the North Bridge, CPU and GPU.

    The service manual also contains pictures, but this diagram is the easiest to see.

    Attached Files:

  2. yoda13 macrumors 65816


    Sep 26, 2003
    I am not a techical expert when it comes to servicing computers. I take it though, that is a big improvement over the G4?:confused:
  3. mmmcheese thread starter macrumors 6502a


    Feb 17, 2006
    From any notebook I've ever seen, there are separate heatsinks for the GPU and CPU...and typically they have a large metal heat spreader (like a desktop heatsink, but with no fins), then pipes off to a big radiator, which takes up about 1/4 of the space in the case. Many times pipes from the GPU will also end up there. Many times (at least in PC laptops), the thickness of the machine is determined by how big the heatsink is. Desktop P4 processors put into notebooks are notorious for being about 2 inches thick, and in the corner you can look in and see the massive heatsink.

    Having the Northbridge/CPU/GPU that close together is very unusual because "typically" each component puts out a lot of heat, and you want to spread that heat apart to better manage it. I guess the CPU and GPU are fairly cool if they are able to do it this way.
  4. generik macrumors 601


    Aug 5, 2005
    Either that or there is a design flaw in the Rev A just waiting to rear its ugly head :rolleyes:
  5. AJBMatrix macrumors 6502


    Feb 6, 2006
    Athens, Georgia
    I really doubt that they would let a flaw that big get through Alpha Testing. But I am going to defend my new computer.

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