9 Replies Latest reply: Apr 12, 2012 7:27 AM by grnfrog55
grnfrog55 Level 1 Level 1 (0 points)

Hey guys, I have an i5 13" air. Sometimes after waking up from sleep I notice that nothing is running, all applications are closed, yet the temp according to istat is between 75c-82c.  I checked the processes and the cpu is barely being hit. Yet the temp stays at those levels. I restart and everything is under 55c with like 4 apps running. Anyone have any ideas?

 

Thanks

  • John Galt Level 8 Level 8 (42,255 points)

    Tried an SMC reset?

  • captfred Level 7 Level 7 (26,275 points)

    It sounds like a bug I've run into also.  Here's a good description of the issue.

     

    https://discussions.apple.com/message/17233347#17233347

     

    Regards,

    Captfred

  • John Galt Level 8 Level 8 (42,255 points)

    Did the EFI Firmware Update 2.4 fix it for you captfred?

     

    (mid 2011 model MBAs only)

     

    I have an unrelated problem that will occur if I follow these exact same steps from the thread you linked:

    After closing the lid and allowing the laptop to sleep, removing mains power before or after sleep begins, after about an hour it goes into hibernation, which is expected. Now, if I wake the machine after this point without plugging in the power cable, everything is fine. I can then plug the power back in once it's awake with no problem. However, if I put it back on to mains power before waking it, then proceed to wake it, ...

    ...I get the "none of your preferred wireless networks are available" dialog. 100% repeatable.

  • captfred Level 7 Level 7 (26,275 points)

    John Galt wrote:

     

    Did the EFI Firmware Update 2.4 fix it for you captfred?

     

    (mid 2011 model MBAs only)

     

    I've applied the EFI update but haven't had the chance to re-test.  My MBair is in "test" mode right now without istatpro.  I'm hoping the update fixed it but won't know for a few days.  I haven't ever had the wireless network issue (thank goodness ).

     

    For the time being, I'm only connecting/disconnecting power while the machine is awake. 

  • John Galt Level 8 Level 8 (42,255 points)

    ...  I haven't ever had the wireless network issue (thank goodness ).

     

    Neither did I, until applying the EFI update

  • grnfrog55 Level 1 Level 1 (0 points)

    After reading all this I don't think I am trying anything except putting it to sleep and waking it. i dont want additional problems.  I will wait for Apple to put out a fix. *****, I am getting obsessed with checking the temp every 10 min;)

  • John Galt Level 8 Level 8 (42,255 points)

    If you haven't performed the SMC reset try it. It might not help but will not cause any problems.

  • fb0r Level 1 Level 1 (0 points)

    Same issue here on an i5 MacBook Air 11" which is otherwise running great.

     

    * On a cold boot it stays cool while idle even when it's been on for hours. Also, it doesn't get unusually warm even after extended periods of heavy use.

     

    * If I unplug the Air, put it to sleep for a few hours, wake it from deep hibernation and then plug it in after I've woken it up temperatures remain perfectly normal.

     

    * However, If it's hibernating and I plug it in before I wake it up temperatures begin to soar without any visible CPU load in the activity monitor and without any taxing apps running. Fans run full blast and it gets noticeably warm to the touch after a while.

     

    * If it's running hot after waking it from sleep a reboot or putting it back to sleep and then waking it up again always seems to fix the issue and temperatures quickly return to normal.

     

    Tried SMC reset, PRAM reset etc with no luck. No other issues whatsoever with it other than this.

     

    Cheers

  • grnfrog55 Level 1 Level 1 (0 points)

    This is really annoying, I avoid putting the machine to sleep anymore which is a drag.. it will be over 70c with nothing running at all and the fans blaring. Might sell this and go back to my thinkpad, I never had to deal with so many small unexplained hardware issues before and never dreamed I'd have to sit and baby sit a temp app while using this the entire time.