fan won't stop on aluminum MacBook

Discussion in 'MacBook' started by matthewscott661, Jul 11, 2009.

  1. matthewscott661 macrumors 6502

    matthewscott661

    Joined:
    Jun 27, 2009
    Location:
    Chicago
    #1
    I had smcfancontrol installed, but I recently took it off because I never used it and I don't like having all those extra things taking up space.

    I uninstalled it using appcleaner to make sure it was totally gone, but now my fan won't turn off. Ever. It worked like normal when the app was installed, only turning on when the cpu heated up, but now it's chugging along at 3500rpm constantly, from the second I boot it up. How can I get it to go back to normal?

    I've tried resetting pram and smc, both to no avail. Any suggestions?
     
  2. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #2
    Re-install smcFanControl and re-establish the fan speed at 2000rpm. The delete smc
     
  3. CalMin macrumors 6502a

    CalMin

    Joined:
    Nov 8, 2007
    #3
    Is your battery life low? Try opening activity monitor and see what's running. You probably have a rogue app. I just fixed this problem for my niece who had a hung lexmark driver.
     
  4. matthewscott661 thread starter macrumors 6502

    matthewscott661

    Joined:
    Jun 27, 2009
    Location:
    Chicago
    #4
    no luck

    I reinstalled smcfancontrol, and put the min speed at 1800rpm, the lowest possible, but the fans is still ALWAYS spinning. Before I used this app it would only turn on when the computer heated up.
    It's not affecting battery life and I can hardly hear it when it's that slow, so I guess I'll just have to live with it.
     
  5. John01021988 macrumors 6502

    Joined:
    May 11, 2007
    #5
    Of course it will ALWAYS spin, minimal fan speed is @ 1800. Maybe before you did not listen to it, but as far as I know, fans are always spinning. I've set mine @ 3000rpm just to keep my macbook cool, somehow I always like to see the temperature between 50 Celsius and 56 Celsius when browsing and emailing.
     
  6. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #6
    An SMC reset might do the trick:


    1. If the computer is on, turn it off.
    2. Disconnect the AC adapter and remove the computer's battery.
    3. Press and hold the power button for 5 seconds and then release the button.
    4. Reconnect the battery and AC Adapter.
    5. Press the power button to restart the computer


    from http://support.apple.com/kb/HT1411
     
  7. matthewscott661 thread starter macrumors 6502

    matthewscott661

    Joined:
    Jun 27, 2009
    Location:
    Chicago
    #7
    Yeah I tried restting SMC already but it didn't change anything.
    How do I know if the reset worked?

    @John maybe you're right and I just didn't notice it before.
     
  8. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #8
    3500rpm is not the normal idle. So long as CPU temp is <75C or so, it should be spinning at 2000rpm with factory settings.
     

Share This Page