Why is the 13" MBA so Lound??

Discussion in 'MacBook Air' started by kp98077, Nov 14, 2010.

  1. kp98077 macrumors member

    kp98077

    Joined:
    Oct 26, 2010
    #1
    So, today I was creating a slide show from some pics in iphoto and during that time the fan was on and quite loud almost the entire time! Seems little strange tome and the bottom got very warm. Has anyone else experienced this situation?
     
  2. teski macrumors regular

    Joined:
    Oct 23, 2010
    #2
    Nope, and I've worked on a few PowerPoint presentations on mine. Did you have much else going on while you were building the deck?
     
  3. kp98077 thread starter macrumors member

    kp98077

    Joined:
    Oct 26, 2010
    #3
    --just internet going in parallel..
     
  4. teski macrumors regular

    Joined:
    Oct 23, 2010
    #5
    Hmm...Right now I have Google Chrome open with 8 tabs, iChat, Preview, Word, PowerPoint, Outlook, and Communicator and I just opened a new ppt presentation and started inserting large jpegs in and doing some editing within powerpoint. No fan, no heat.

    How long were you working on the presentation and what were you doing beyond inserting pics?
     
  5. FAsnakes macrumors regular

    Joined:
    Jul 26, 2007
    #6
    lol
     
  6. miggitymac macrumors 6502a

    miggitymac

    Joined:
    Jan 7, 2009
    #7
    I had my fans flare up once (on the 13.3) when I was on YouTube and transferring a bunch of files to/from an external drive.

    It was kind of loud, but I wouldn't describe it as lound. :p

    I actually kind of thought it sounded cool...like a mini jet engine in the palm of my hands..haha.

    It didn't get too hot though, and that's the only time I've even noticed the fans going.
     
  7. three macrumors 6502a

    three

    Joined:
    Jan 22, 2008
    Location:
    Washington State
    #8
    Nothing to worry about, it is just the Mac trying to cool it's self. I am pretty sure this isn't as bad as the Revision A. The fan was on all the time on my old Air...
     
  8. Adidas Addict macrumors 65816

    Adidas Addict

    Joined:
    Sep 9, 2008
    Location:
    England
    #9
    The only time my fans have come on (audible) is playing Plant vs Zombies for a couple of hours.
     
  9. Appleind macrumors regular

    Appleind

    Joined:
    Nov 12, 2010
    #10
    Same here. Only when I play COD Black Ops :D. Seems like the Air cant take the heat :cool:
     
  10. Topo-kun macrumors newbie

    Joined:
    Apr 3, 2009
  11. jayo123456 macrumors regular

    Joined:
    Jun 29, 2010
    #12
    Having many apps open doesn't trigger the fan. I've had 50 apps (ssd testing) running, and fan rpm stays at 2000rpm.

    I can have nothing open except a couple flash videos going, and cpu temp would be approaching 80c, and 2700rpm+ fan. It's the CPU processing that triggers the fan.
     
  12. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #13
    Have a look at Activity Monitor ( Applications / Utilities / ) and select All Processes and sort by CPU to see what the culprit may be.

    image below uses sorting by CPU as an example
    [​IMG]
     
  13. kp98077 thread starter macrumors member

    kp98077

    Joined:
    Oct 26, 2010
    #14

    **everything is fine except my iphoto is at 150% CPU (as im putting together a slide show).....
     
  14. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #15
    150% CPU use means the CPU is used to 3/4 of its capacity (150% of 200% <-- 2 cores; 1 core = 100%), thus more power has to be drawn and as more power generates more heat, the CPU gets hotter and the fan is starting to spin faster than its idle speed.
     
  15. jimboutilier macrumors 6502a

    Joined:
    Nov 10, 2008
    Location:
    Denver
    #16
    If your photo library is newly copied, opening iPhoto may cause it to start building thumbnails, jpegs from raws, face searches etc depending on how you populated it. Syncing with an iPhone or iPad the first time will also cause an enormous load as it optimized pics to sync to these devices.

    So maybe leave iPhoto up for a few hours and see if the load drops off. I know the first time I did this after copying my photo library over it took a number of hours for iPhoto to finish it's business before it became a trivial background process.
     

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