tbMBP 15" Idle fan speed. Left fan faster?

Discussion in 'MacBook Pro' started by HiMarkus, Feb 6, 2017.

  1. HiMarkus macrumors newbie

    Joined:
    Dec 16, 2016
    #1
    Hello, today I found out (using iStat Pro), that the idle speed of the left fan is about 150 rpm faster than the right one. Is that normal? Anybody can confirm this?

    Idle speed right fan = 2000 rpm
    Idle speed left fan = 2150 rpm
     
  2. Sanpete macrumors 68020

    Joined:
    Nov 17, 2016
    Location:
    Utah
    #2
    Yes, that's normal. I've seen it in reviews. I suspect it's to help avoid sound peaking at one frequency, which would cause a more annoying sound profile.
     
  3. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
  4. HiMarkus thread starter macrumors newbie

    Joined:
    Dec 16, 2016
    #4
    Glad to hear this Even more, because the whole machine works perfectly!

    Thanks!
     
  5. DanDilla macrumors member

    DanDilla

    Joined:
    Nov 15, 2016
    Location:
    Lüneburg, Germany
    #5
    The cause may be the CPU sitting on the left hand side, if I'm not wrong.

    Since the GPU shouldn't be producing any heat on idle, there's no need for enhanced cooling.
     

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