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Fan SCREAMS on light use (with graph!)

1382 Views 24 Replies Latest reply: Dec 5, 2012 6:25 PM by VonMartens RSS
  • BDAqua Level 10 Level 10 (114,705 points)
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    Jul 29, 2012 2:12 PM (in response to den.thed)

    I did catch that actually, thanks, but I was thinking there's something borked about whatever is controlling the fan, & that using one of those, or reinstalling one of those may cure the fan problem.

  • den.thed Level 7 Level 7 (23,325 points)
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    Jul 29, 2012 2:59 PM (in response to lillynews)

    Be sure to fully quit smcFanControl before uninstalling (moving it to the trash) and then reset your iMac's SMC after getting rid of it.

     

    see > FAQ

     

    and > Intel-based Macs: Resetting the System Management Controller

     

    Fan Control was actually made for the two fan notebooks, but I like it better for my Mini because once you set it up the fan progressively speeds up and down as the temperature goes up and down. 

  • den.thed Level 7 Level 7 (23,325 points)
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    Jul 29, 2012 7:39 PM (in response to lillynews)

    Run the Apple Hardware Test, as per Using Apple Hardware Test

     

    Because it's starting to seem more like either a loose, pinched sensor cable or a faulty sensor.

  • den.thed Level 7 Level 7 (23,325 points)
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    Jul 30, 2012 7:04 PM (in response to lillynews)

    I'm not sure what's up at this point? The only other thing that I can think of is to do a Spotlight Search for SMCFanControl just in case there is a second installation somewhere on your system.

    iMac, Mac Mini, iPad, iPods, Mac OS X (10.6.8), (10.7.4) Safari, iTunes, iPhoto
  • BDAqua Level 10 Level 10 (114,705 points)
    Currently Being Moderated
    Jul 31, 2012 8:16 PM (in response to lillynews)

    My guess is the sensor or whatever that controls the fan speed ist kaput, & were up a creek.

  • VonMartens Calculating status...
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    Dec 5, 2012 6:25 PM (in response to lillynews)

    I realize this thread is a few months old but I just want to vent my spleen on the piece of garbage that I call my 2009 Mac Mini on OS X 10.6.8, barely used.  My problem is the same: high revving fan under no load for no reason with all temperatures well within limits.  I reset the SMC on three separate occasions, ran the AHT disc which says everything is OK (liar), and have searched the internet for a solution all to no avail.  I downloaded the latest smcFanControl and it wouldn't even work so I removed it. 

     

    Another problem with this Mac Mini: it would not open any flash based websites, so I moved it across the room and everything worked fine (on a wireless network).  When I was trying to troubleshoot it some months earlier, I had plugged it into the router via ethernet cable and it wouldn't even work.  Weird.

     

    I have come to the same conclusion as BDAqua about lillynews' Mac, but my Mac Mini is a total lemon, and absolutely useless as I can't even get smcFanControl to work on it. 

    Mac mini, Mac OS X (10.6.8)
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