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    SMC fancontrol - recommended setting

    Discussion in 'Apple and Mac OS X' started by Jitto, Feb 8, 2011.

  1. Jitto

    Jitto Notebook Consultant

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    Hey guys,

    I have installed SMC FC on my mac and am wondering how i should configure it safely without having any major hardware issues. hope anyone of you can help me out.

    Thanks in advance
     
  2. ren3g7ade

    ren3g7ade Notebook Evangelist

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    I run it @ ~2000RPM for the default and ~4000RPM for the High RPM setting. I have not tried running the fans any faster as I do not want to burn them out. I have not had any issues running smcFanControl and I have been using it since I got my MBP.
     
  3. Jitto

    Jitto Notebook Consultant

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    thanks for the reply mate. Just wondering, after a couple of hours my comp reaches a temp of 60-75C. But the the fan speed (without SMC) only increases to 2020 rpms from 1995 rpm. Is this normal? and at what tempertaure does the fan actually kick in full throttle
     
  4. ren3g7ade

    ren3g7ade Notebook Evangelist

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    Found this on the Apple Support Discussion Forum. Maybe resetting the SMC will help you. The link points you to how to do that.

     
  5. doh123

    doh123 Without ME its just AWESO

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    you cannot have hardware issues really... SMCfancontrol cannot cause damage to your system, it only changes the minimum speeds of your fans, your fans will still get faster if its needed no matter what you set them to.

    most macbooks right now go from 2000 - 6200 rpm.

    Apple makes them slow to spin up... so its not abnormal to get into the 80s or even 90s on some machines and still be at 2000rpm.
     
  6. Jitto

    Jitto Notebook Consultant

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    Thanks resetting the SMC did the job. Appreciate it.


    As always thanks for the reply man ill heed your advice.But if the fan rpm remains at 2000 and the temp jumps to 70-80c wont it hurt the machine? at this point is it ok to continue using the machine?
     
  7. doh123

    doh123 Without ME its just AWESO

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    Apple thinks hitting into the 90º C range is fine before spinning up...

    I prefer keeping mine cooler. If I know I'm about to do something that will get it really hot, i go spin the fans up with smcfancontrol manually first, so it never gets that hot. 70º - 80º is nothing... I just try to keep it at 85º or less when maxing out the machine.
     
  8. Jitto

    Jitto Notebook Consultant

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    At what temp does your fan hit 4000 rpm?
     
  9. Jitto

    Jitto Notebook Consultant

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    cool thanks for the reply man. So just to confirm running my machine at around 70-80c is completely fine and can continue with the work and if it gets any higher then i switch on smc fan control to reduce the temp? that sound aright?
     
  10. doh123

    doh123 Without ME its just AWESO

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    keep it how you want it.. some people keep it cooler than others, but up to 80º C isn't usually going to cause a noticeable different int he life of the product... its like a difference of it lasting only 12 years instead of 18... of course each component has its own tolerances, and you may get a lucky draw and get one that can go at 80º for many years.. or a bad luck draw and it dies in 2... you just never know with electronics. Taking the bets on probability though, its very unlikely you'll ever notice an issue running it into the 80ºs.
     
  11. ren3g7ade

    ren3g7ade Notebook Evangelist

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    my experience on when the fan spins up is the same as doh123 fwiw...glad the smc reset helped.
     
  12. Jitto

    Jitto Notebook Consultant

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    Thanks a billion man. You've pretty much clarified all my doubts. Didnt realise that some hardware parts will be able to handle a temp at 80c. CHeers again for the support. :D
     
  13. doh123

    doh123 Without ME its just AWESO

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    Intel lists the max operating temp for Core 2 Duo/Quad and Core i3/i5/i7 all as around 105º C or close... pretty dang hot! I wouldn't want to run it at that temp myself though, I'm a bit more paranoid.
     
  14. Jitto

    Jitto Notebook Consultant

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    ha. same here mate... 105c is just insane