iMac: auto-wakes after sleep

Discussion in 'iMac' started by DennisMadsen, May 12, 2011.

  1. DennisMadsen macrumors regular

    Joined:
    Sep 21, 2010
    #1
    I've got my new iMac yesterday. It's the 27" upgraded with the i7 CPU.
    When I put the iMac in sleep it wakes up automatically 2 seconds after. Can somebody explain me why?

    I've installed extra RAM blocks. It's Kingston KTA-MB1333/4G. See my attachment.
     

    Attached Files:

  2. DennisMadsen thread starter macrumors regular

    Joined:
    Sep 21, 2010
    #3
    Anything specific of the topics you are thinking about?

    My iMac has now been running the hole night (6,5-7 hours) eg. to index spotlight. It was set to sleep after 15 minutes, but it was still awake when I wake up.

    I've removed the "Wake for network access" option in Settings->Energy Saving. What seems to be a solution for me. But why should it wake for network access? Any specific program?
     
  3. Icy1007 macrumors 65816

    Icy1007

    Joined:
    Feb 26, 2011
    Location:
    Cleveland, OH
    #4
    Allowing it to wake from network access would allow you to access your computer remotely while it is asleep.
     
  4. DennisMadsen thread starter macrumors regular

    Joined:
    Sep 21, 2010
    #5
    I found this article: http://osxdaily.com/2010/07/17/why-mac-wakes-from-sleep/

    That allowed my to explore what wakes up my iMac. It seems to be a EHC2, which could be a USB controller. I had connected a iPhone dock with a USB data cable. I've disconnected it and would now test if this helped me.

    I'll update in a few days.
     
  5. product26 macrumors 6502a

    product26

    Joined:
    May 30, 2005
    #6
    Mine would wake because of the magic trackpad.
     
  6. DennisMadsen thread starter macrumors regular

    Joined:
    Sep 21, 2010
    #7
    My iMac is still waking up automatically, but now only RTC wake up events occur:

    Code:
    Fri May 13 18:29:17 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
    Fri May 13 20:10:02 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
    Fri May 13 21:50:29 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
    Fri May 13 23:30:38 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
    Sat May 14 01:10:28 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
    Sat May 14 02:50:01 Dennis-Madsens-iMac kernel[0] <Debug>: Wake reason = RTC
    What can the reason be for that? Is it my Time Capsule that is waking up the iMac? Please notice, that all minutes are something link 20:10, 21:50, 23:30, 01:10, 02:50. What can the reason by?
     
  7. DennisMadsen thread starter macrumors regular

    Joined:
    Sep 21, 2010
    #8
    It seems that disabling "Energy Saver -> Wake for network access" stop waking up my iMac. Which network devices can wake up my device?
     

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