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  1. #1

    Member Since
    Nov 01, 2008
    Fan speed issue > MacBook 2 GHz Intel Core 2 Duo

    My mac's fan speed revs up to 6000+ RPM all the time, and I can't figure out why. I downloaded smc fan control, but it doesn't seem to do anything.

    What are
    A) The ideal temperature for this computer?
    B) Reasons for the fan speed increase?

    Activity monitor has failed to show any reason for this.


    Hardware Overview:

    1 GB 667 MHz DDR2 SDRAM

    Model Name: MacBook
    Model Identifier: MacBook3,1
    Processor Name: Intel Core 2 Duo
    Processor Speed: 2 GHz
    Number Of Processors: 1
    Total Number Of Cores: 2
    L2 Cache: 4 MB
    Memory: 1 GB
    Bus Speed: 800 MHz
    Boot ROM Version: MB31.008E.B02
    SMC Version: 1.24f2
    Sudden Motion Sensor:
    State: Enabled

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Keller, Texas
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, High Sierra
    Normal temperature for your model should be around 49 - 53 degrees C with a fan speed of around 1800 RPM. If smcFanControl isn't able to control the speed of the fan and your activity monitor shows no unusual goings on with the CPU, it's time to take it on in to Apple and have them look at it. Could be a defective thermal sensor which controls fan speed or the fan itself.


  3. #3

    halo200's Avatar
    Member Since
    Sep 08, 2007
    13" MBP 2.6Ghz i5 8GB 256GB | iPhone 6S
    Install menutemperature and see if your temperature is unusually high and if it isnt with the fans shooting up for no reason then do what chscag said and take it back to Apple.

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