Did smcFanControl mess up my fan?

Discussion in 'MacBook' started by mpcoder, Apr 27, 2009.

  1. mpcoder macrumors newbie

    Joined:
    Mar 21, 2009
    #1
    I noticed that my macbook was getting getting very hot every now and then, so I installed smcFanControl, and set it up, so that it would run at 1800 when it was on battery power, 2400 when it was plugged in, and 3500 for when i was making heavy use of it.

    Now, two days later, im hearing this weird sound when ever the fan reaches 1900rpm, and im really worried that i might have screwed up the fan. The macbook its only 2 months old, so the fan is practically new.
     
  2. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #2
    How did you make smcFanControl let you go all the way down to 1800 rpm? That's not allowed by the software itself. The application even gives you a warning about this.

    Did you read it? Guessing not. In any case, you may have unwillingly killed your own fan. Fan is supposed to run at a minimum of 2000 rpm. Also, running your fan at such a slow speed may have over heated something.
     
  3. steve31 macrumors 6502a

    steve31

    Joined:
    Jul 20, 2007
    Location:
    Edmonton Canada
    #3
    Macbooks default speed is 1800rpm. My Macbook is also at 1800rpm and I have used this app on every mac that I have had with no problems. I would uninstall it and take it to your Apple store. I am sure that it was not caused by smc but I would uninstall it and bring it in.
     
  4. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #4
    What model macbook are you running? My 2.0 unibody defaults and never goes under 1999/2000 RPM
     
  5. mpcoder thread starter macrumors newbie

    Joined:
    Mar 21, 2009
    #5
    I have the one with the aluminum body. What's weird is that i hear a grinding noise when its running from 1900 to 2600 or so... But if its running at a speed lower than 1900 or higher than 2600 then it stops. :confused:
     
  6. kopo macrumors newbie

    Joined:
    Apr 3, 2009
  7. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #7
    What program is telling you this? Not that I'm saying you're wrong, I'm just curious.
     
  8. dextermorgan macrumors member

    Joined:
    Nov 22, 2008
    #8
    I have the same problem (fan noise) and took it to the Apple Store. They said that fans were on backorder. I'm beginning to think it is a common problem.
     
  9. taru91 macrumors regular

    taru91

    Joined:
    Jun 4, 2008
    Location:
    Monterrey, Nuevo León. México
    #9
    iStat Pro , which is a dashboard widget, tells you that kind of info. Also temperatures, HDD, network, CPU, RAM, and battery. :D
     
  10. steve31 macrumors 6502a

    steve31

    Joined:
    Jul 20, 2007
    Location:
    Edmonton Canada
    #10
    istat pro and smc both say 1800 rpm. In Uni 2.4 Macbook.
     
  11. natebookpro macrumors 6502a

    Joined:
    Sep 25, 2008
    Location:
    Maryland
    #11
    My 2.4 runs at 2000 default. I wonder what the difference is?
     
  12. taru91 macrumors regular

    taru91

    Joined:
    Jun 4, 2008
    Location:
    Monterrey, Nuevo León. México
    #12
    I got a a 2.4 2008 white macbook and default is at 1800rpm
     
  13. iJimmy macrumors regular

    iJimmy

    Joined:
    Feb 4, 2008
    #13
    Default speed is 1800rpm on my 2.2 black macbook.
     
  14. Sareth macrumors member

    Joined:
    Jan 5, 2009
    #14
    Same on 2.4 unibody.
     
  15. Sareth macrumors member

    Joined:
    Jan 5, 2009
    #15
    Huh, installed newest version of SMCFanControl and the fan is now reading as 1800RPM
     
  16. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #16
    I'm aware what iStatPro does, I use it too....
     
  17. sbojevets macrumors member

    Joined:
    Feb 7, 2009
    Location:
    The Arctic
    #17
    what is the highest speed that is recommended? i mean i dont wanna overwork the fan and shorten the lifespan

    also, where is the air intake vent? i can feel air coming out just below the screen at the hinge area, but where does the macbook take in air from?
     
  18. Buskape macrumors 6502

    Buskape

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    Dec 10, 2008
    Location:
    NGC 4889
    #18
    My unibody 2.4 ghz says on istat and smcfan 1995/2000 rpm default. It can't go lower
     
  19. Sareth macrumors member

    Joined:
    Jan 5, 2009
    #19
    what version of smcfancontrol ? it was showing 2000 for me on 2.1 and now shows 1800 on 2.2
     
  20. xraydoc macrumors demi-god

    xraydoc

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    Oct 9, 2005
    Location:
    192.168.1.1
    #20
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_2_1 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5H11 Safari/525.20)

    iStat on my 5 day old 2.4GHz unibody MacBook says 1999 rpm.

    It does have 4GB of RAM. Wonder if that explains why some are at 1800 rpm and why some read 2000..
     
  21. Buskape macrumors 6502

    Buskape

    Joined:
    Dec 10, 2008
    Location:
    NGC 4889
    #21

    It's the 2.2.2 version
     
  22. Sareth macrumors member

    Joined:
    Jan 5, 2009
    #22
    That's .. odd. It showed 2000 on 2.1 then when I installed 2.2.2 on a clean 10.5.6 it shows 1800.
     
  23. taru91 macrumors regular

    taru91

    Joined:
    Jun 4, 2008
    Location:
    Monterrey, Nuevo León. México
    #23
    Well, how was I supposed to know that you knew what it did. I'm just trying to be helpful...

    Sorry if what I wrote didn't make sense, english is not my native language.
     
  24. ptsube macrumors 6502

    Joined:
    Oct 12, 2008
    #24
    My fan is making all sorts of noise. Quite annoying. I was going to take it to an Apple Store, but if they are on backorder, I won't bother.
     
  25. sosaysiburke macrumors member

    sosaysiburke

    Joined:
    Mar 30, 2009
    #25
    mine idles at 2000 sometimes a few rpms lower but never below 1990
     

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