Macbook fan

Discussion in 'MacBook' started by hayden00011, Dec 22, 2011.

  1. hayden00011 macrumors newbie

    Joined:
    Jul 22, 2011
    Location:
    atlanta ga
    #1
    The fan on my macbook 1,1 is constantly running really loud. It started this morning when i was using it i have tried restarting the computer shutting it down but nothing has worked. Smc fan control says it is 61degrees celsius and the fan is running at 5117rpm and higher. also here is a picture of istat.
     

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  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    Try resetting the SMC. Also, launch Activity Monitor and change "My Processes" at the top to "All Processes". Then look to see what may be consuming system resources.
     
  3. hayden00011 thread starter macrumors newbie

    Joined:
    Jul 22, 2011
    Location:
    atlanta ga
    #3
    I tried resetting the smc and when I turned my macbook back on it seemed fine until i opened up chrome. The fans went up to 5000rpm and it sounds like a long monotonous whirring. Should I take the top case off and possibly see if there is dust built up there?
     
  4. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #4
    It's not likely that it's dust. Did you look at Activity Monitor, as I suggested? Sort by CPU in descending order.
     
  5. hayden00011 thread starter macrumors newbie

    Joined:
    Jul 22, 2011
    Location:
    atlanta ga
    #5
    flashplayer is using 101.0 mb

    and chrome is using 120.0 mb
    those are the two that are using the most memory
     
  6. Nameci macrumors 68000

    Nameci

    Joined:
    Oct 29, 2010
    Location:
    The Philippines...
    #6
    We are not looking for the ones that use the highest ram, we are looking for the ones that use up the highest cpu cycles.
     
  7. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #7
    Please re-read:
     
  8. logana macrumors 65816

    logana

    Joined:
    Feb 4, 2006
    Location:
    Scotland
    #8
    It is not memory that is the problem - Chrome is probably using 50% or more of your CPU - back to Activity Monitor and select the CPU tab at the bottom then check that the drop down at the top is "all processes"

    Chrome and its Flash Player will be eating up the CPU !

    After 5 years the fan (or rather the radiator/outlet behind the fan) will be choked with dust and will be running much faster than it would if it was clean....
     
  9. hayden00011 thread starter macrumors newbie

    Joined:
    Jul 22, 2011
    Location:
    atlanta ga
    #9
    Here is a screenshot of activity monitor.
     

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  10. Nameci macrumors 68000

    Nameci

    Joined:
    Oct 29, 2010
    Location:
    The Philippines...
    #10
    When you took this screenshot are your fans running on higher rpm?
     
  11. hayden00011 thread starter macrumors newbie

    Joined:
    Jul 22, 2011
    Location:
    atlanta ga
    #11
    yes, the fans start as soon as the computer fully boots up. They will start full blast even if nothing is running. Could it be that it is a part that needs to be replaced?
     
  12. logana macrumors 65816

    logana

    Joined:
    Feb 4, 2006
    Location:
    Scotland
    #12
    Well it may be a fault with the sensors on the heatsink - the problem is that iStat does not work properly with the Core Duo MacBooks.

    As you can see from your original screenshot the readings for Heatsink A at 126 C (!!) and Heatsink B is 7 C - both of which are clearly rubbish.

    As far as I can remember they are false readings but I suppose in your case they may be correct - tough I would seriously doubt it..

    Perhaps the first job would be to remove the heatsink and fan - clean out the fan and check that the 2 sensor connectors are properly in place.
     

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