Fan always on?

Discussion in 'MacBook' started by phas3, Oct 7, 2008.

  1. phas3 macrumors 65816

    Joined:
    Oct 5, 2008
    #1
    okay so I'm looking at my istat pro widget and says my fan is running at 3450 rpms is that normal and am i suppose to only have one fan. what is normal

    i have a new macbook 2.4ghz Intel core duo w 2gb ram
     
  2. mathcolo macrumors 6502a

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    Sep 14, 2008
    Location:
    Massachusetts
    #2
    Yes, one fan is normal. Are you running CPU-intensive games or applications like Photoshop? That could be why your fan is running a lot. Mine usually runs at 1750 rpm.
     
  3. Eidorian macrumors Penryn

    Eidorian

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    Indianapolis
  4. phas3 thread starter macrumors 65816

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    Oct 5, 2008
    #4
    i like to mess with photoshop and other adobe products so if its running around 3k rpm i should have nothing to worry about? how bout if its running like that for awhile
     
  5. hogfaninga macrumors 65816

    hogfaninga

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    #5
    It is normal.
     
  6. JML42691 macrumors 68020

    JML42691

    Joined:
    Oct 24, 2007
    #6
    That seems pretty normal, mine when it is running at its low and normal speed is 1793 rpm, and when the CPU starts to reach high temperatures (180 F) the fan hits about 6200 rpm, so I would say that it is normal for some somewhat CPU heavy software.
     
  7. phas3 thread starter macrumors 65816

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    Oct 5, 2008
    #7
    if i where to upgrade to 4g of ram would that make the heat off the laptop cooler?
     
  8. hogfaninga macrumors 65816

    hogfaninga

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    Aug 16, 2008
    Location:
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    #8
    It isn't running hot right now if you are running those programs. That is very normal and a lot cooler than a PC would. Is this your first laptop?
     
  9. phas3 thread starter macrumors 65816

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    Oct 5, 2008
    #9
    no but this is my first mac...im gonna try using fan control whats the best setting i should use?
     
  10. phas3 thread starter macrumors 65816

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    Oct 5, 2008
    #10
    so i was trying to watch an episode of niptuck online just now and my fan kicked up to 6k rpm why does it do that im just watching a video
     
  11. Aea macrumors 6502a

    Aea

    Joined:
    May 23, 2007
    Location:
    Denver, Colorado
    #11
    Because your laptop doesn't have a real GPU to offload video processing, or you're watching a flash video (which just love to gobble up CPU). It's nothing to worry about, laptops will get very, very hot but have components built to withstand the rigors.
     
  12. 840quadra Moderator

    840quadra

    Staff Member

    Joined:
    Feb 1, 2005
    Location:
    Twin Cities Minnesota
    #12
    I would consider looking into a program like SMC fan control.

    Like your widget, it monitors your fan speed, however you are also able to set the default speed of your device fan. I actually cranked mine up about 200 RPM from default, and found that it went to high speed much less often when doing small periods of processor intensive work.


    [​IMG]
     
  13. phas3 thread starter macrumors 65816

    Joined:
    Oct 5, 2008
    #13
    thanks for the reply guys, i do have smc fan control but i do not know how fast i should run my fans any suggestions?
     
  14. alphaod macrumors Core

    alphaod

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    Feb 9, 2008
    Location:
    NYC
    #14
    Because your GPU got hot and something needs to cool it off.
     
  15. phas3 thread starter macrumors 65816

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    Oct 5, 2008
    #15
    i set my default rpm to 2800 is that alright?
     
  16. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #16
    A little noisy but it's fine.
     

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