Fans running while sleeping

Discussion in 'MacBook Pro' started by Martin29, Aug 24, 2015.

  1. Martin29 macrumors 6502

    Martin29

    Joined:
    Nov 25, 2010
    Location:
    Quimper, France
    #1
    My wife and I both have new rMBP 13" machines. Both machines have the same issue where the fans sometimes start and run at full speed during the time the machines are asleep. They don't feel at all warm. The fans sometimes slow and stop themselves and on other occasions only stop if we switch off and reboot the machines.

    Has anyone else seen this? Is it something we should be concerned about?
     
  2. snaky69 macrumors 603

    Joined:
    Mar 14, 2008
  3. Martin29 thread starter macrumors 6502

    Martin29

    Joined:
    Nov 25, 2010
    Location:
    Quimper, France
    #3
    Yes, but there's nothing updating or synching. Can't see any activity other than the fans running.
     
  4. mccjim12 macrumors member

    Joined:
    Sep 23, 2012
    Location:
    Stamford, CT
    #4
    I found this thread looking for a solution to an odd problem I'm having. Suddenly, I've noticed my 13" cMBP (2012) not going to sleep when I put it to sleep. The sleep light comes on but the fan stays on. I'm selecting 'sleep' from the Apple menu and all Energy Saver settings have been restored to default. The fan stays running and the machine stays pretty warm. Activity Monitor shows nothing unusual.

    Until recently I could just close the cover and it would sleep (fan off, sleep light on, cool machine). Anyone have any idea as to what could cause this?

    Probably doesn't matter but I'm running Mavericks (10.9.5). Thanks!
     

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