Replacing fan.. should I replace heatsink too?

Discussion in 'MacBook' started by poopieboy, Aug 22, 2009.

  1. poopieboy macrumors newbie

    Joined:
    Aug 22, 2009
    #1
    My macbook fan has been super noisy for about a month and a half now. I checked with smcfancontrol and the speed was completely normal. This last week its been starting up with a fan speed of 0rpm and gradually builds up to 2100 but it will no longer go past this. I took it to an apple store and they confirmed the fan must be replaced, but I don't have the money to pay them for it.

    I am going to be replacing it myself and have done my research and know I am capable of doing it. I have not yet decided whether I will buy the fan off ebay or off powerbookmedic.com, but I notice I can buy the fan assembly (fan and housing) or fan assembly with heatsink.

    What should I buy? Should I just replace the fan or should I go ahead and replace the heatsink while I'm at it?
     
  2. shady825 macrumors 68000

    shady825

    Joined:
    Oct 8, 2008
    Location:
    Area 51
    #2
    No need to replace the heat sink.
    All it really is is a piece of metal.

    Good luck!
     
  3. poopieboy thread starter macrumors newbie

    Joined:
    Aug 22, 2009
    #3
    Well would it be a bad idea to replace the heatsink too? The fan w/ heatsink is pretty cheap on ebay.

    Which leads me to ask, are the macbook fans on ebay a good idea or should i just go with the powerbookmedic.com ones?
     
  4. shady825 macrumors 68000

    shady825

    Joined:
    Oct 8, 2008
    Location:
    Area 51
    #4
    As long as the specs of the fans are similar I don't see a problem with where you get the fan or what brand it is.
    If the heat sink comes with the fan I'd say sure go ahead and replace it but I wouldn't go out of your way looking for one. It won't really make a difference.
     
  5. Silvia96 macrumors member

    Joined:
    Jun 23, 2009
    Location:
    Durham NC
    #5
    It isn't imperative to replace the heatsink when you replace the fan, just remember to be careful, reattach the felt tape that attached the 2 pieces, and use new thermal paste on your processors after thoroughly cleaning off the old paste. Good luck! This repair isn't very difficult, just keep track of your screws.
     
  6. poopieboy thread starter macrumors newbie

    Joined:
    Aug 22, 2009
    #6
    Thanks a lot Silvia, I ordered the fan this morning off ebay for 5 bucks. I am not going to replace the heatsink. I have a system for tracking which screw goes where already.

    I have printed out the instructions on ifixit.com on how to replace the fan, and will have double sided tape on the little circles indicating which screw goes where, so when I take off a screw I will just tape it to the picture of the macbook corresponding to where that screw is. I shouldn't have an issue there.

    Once I have this thing fully open, screws aside, is there any other place where you think I could mess up and possibly damage my computer?
     
  7. seleneS macrumors member

    Joined:
    Jul 28, 2010
    #7
    My old macbook fan was not working so I replaced it today. However the new installed one doesn't work either :(. I wonder if it isn't working because I broke the black felt tape (where ifixit clearly states that I shouldn't). Does anyone know what the felt tape does? Thanks.
     
  8. eman macrumors 6502a

    Joined:
    Nov 5, 2007
    Location:
    In the great white north
    #8
    The black felt tape just holds the fan to the heat sink and direct the air out the back of the macbook and is not going to prevent the fan from working.
     
  9. seleneS macrumors member

    Joined:
    Jul 28, 2010
    #9
    Thanks eman, it was the loose fan connector that keeps my fan from working.
     

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