MacBook air making noise with Lion

Discussion in 'Mac OS X Lion (10.7)' started by gwelmarten, May 8, 2011.

  1. macrumors 6502

    Joined:
    Jan 17, 2011
    Location:
    England!
    #1
    Hi
    I installed Lion 10.7 onto my MacBook Air as it is my mobile developing machine for MacOSX apps. I have it dual booting with Snow Leopard. I have noticed that the fan seems to be pretty noisy when the computer is running Lion, compared to me not been able to hear the computer at all when running Snow Leopard. Has anybody else had any experience of this problem?

    I've also noticed battery life seems to be a about an hour and a half less when Lion is running - strange as you'd expect Apple to be making the OS more efficient, not less.

    Thanks in advanced.

    Sam
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
  3. macrumors newbie

    Joined:
    Oct 26, 2010
    #3
    Why do you think they call it a PREVIEW?
     
  4. macrumors 68020

    Joined:
    Feb 19, 2011
    #4
    Sorry to revive this thread, but I thought I'd shed some light. In Lion, fan speeds (at least on my MBP) are locked at a minimum of 5,200 RPM, whereas in SL the minimum fan speed was 2,000 RPM.

    It's basically a short-term (at least I hope so), fix for Apple's lousy fan management (fans not kicking it high temps etc).
     
  5. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #5
    My iMac (2007) and MB (2008) had normal fan speeds with Lion DP 1 and 2.
     

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