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  1. #1


    Member Since
    Jun 10, 2012
    Posts
    23
    Unnecessary fan noise
    Very recently just turning on my macbook the fan starts up making noise. The macbook itself is quite cold so it shouldn't be trying to cool anything down. It's not it's silent running self anymore, also the fan noise has a slight "whir" noise to it.

    Any suggestions?

  2. #2


    Member Since
    Jun 11, 2012
    Posts
    66
    Do you know that it is coming from the fan and not the HDD?

  3. #3


    Member Since
    Jun 10, 2012
    Posts
    23
    Oh I'm not sure now.... It didn't used to make the noise before and I have made any changes or installed anything recently. It just started.

  4. #4


    Member Since
    Jun 11, 2012
    Posts
    66
    Is there any clicking involved or just whirring?

  5. #5


    Member Since
    Jun 10, 2012
    Posts
    23
    Just whirring, no clicking.

  6. #6


    Member Since
    Jun 11, 2012
    Posts
    66
    Quote Originally Posted by cammerz View Post
    Just whirring, no clicking.
    Have you tried using software to change the fan speed and wind it down?

  7. #7


    Member Since
    Jun 10, 2012
    Posts
    23
    Yes the software didn't change anything at all, possibly made it worse.

  8. #8

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    47,163
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, El Capitan
    Sounds like it's time to either replace that fan or possibly lubricate it. Probably easier to replace it as trying to lubricate it can get you into trouble. Go to the ifixit web site and look up the instructions for replacing the fan.

    iFixit: The free repair manual

    If you're reluctant to doing it yourself, have an authorized Apple repair service center or Apple store do it for you.

  9. #9


    Member Since
    Jun 10, 2012
    Posts
    23
    The thing is the CPU isn't heavily loaded.

  10. #10


    Member Since
    Jun 10, 2012
    Posts
    23
    That is the scenario but I've tried that already :/

  11. #11


    Member Since
    Jun 10, 2012
    Posts
    23
    No second monitor, no extra accessories plugged in, just my macbook plugged in to the mains, only chrome running with low CPU usage, well ventilated.

  12. #12

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,842
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    The bearings in all fans break down after some time, and they get noisier as they age. You may want to run the Apple Hardware Test, which should indicate any abnormal behavior for the fans:

    Intel-based Macs: Using Apple Hardware Test

    Secondly, I'd also recommend a PRAM and SMC reset:

    Intel-based Macs: Resetting the System Management Controller (SMC)

    Resetting your Mac's PRAM and NVRAM

    Finally, the fans may run faster if the intake tracts are clogged with dust. iFixit.com has disassembly directions for most Mac models. Generally, you can take off the bottom panel and blow it out with some compressed air (be sure to hold the fans captive while you do this as it's generally a bad idea to overspin them).
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  13. #13


    Member Since
    Jun 10, 2012
    Posts
    23
    Thanks! I'll take a look at all the suggestions

  14. #14


    Member Since
    Jun 11, 2012
    Posts
    66
    Any luck?

  15. #15


    Member Since
    Jun 10, 2012
    Posts
    23
    It did come up with an error for the Logiboard but after performing a PRAM reset the error went away. The fn still persists to whir and run when unnecessary. At times, such as just turning after being in sleep mode, it'll start up at high speed then gradually slow down.

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