iMac Late 2012 Shuts down at login screen

Discussion in 'iMac' started by manic23, Feb 15, 2013.

  1. manic23 macrumors newbie

    Jul 26, 2012
    I have a strange issue with my Late 2012 21" iMac, it has OS X Mountain Lion 10.8.2. The issue is this, if i turn on my iMac and then walk away for more than about 5 mins without logging in, it shuts down! it does not happen once I am logged in to OS X, I have never had this issue before with other Macs. Any ideas?
  2. cainehorr macrumors newbie

    Mar 21, 2013
    I am experiencing the same issue on a 17" MacBook Pro running 10.8.3 and a Mac Mini, also running 10.8.3.

    Power on...
    FileVault login...
    wait... wait... wait... (don't have exact time)...
    System auto-powers down...

    I have to physically press the power button and restart then login if I wish the system to stay up.

    Anyone else with this ever figure this out?

  3. rkaufmann87 macrumors 68000


    Dec 17, 2009
    Folsom, CA
    You have 90 days of free AppleCare telephone support, no time like the present to begin using it.
  4. Serban Suspended

    Jan 8, 2013
    So, any news? did you call Apple support? what is the verdict?
  5. justperry macrumors G3


    Aug 10, 2007
    In the core of a black hole.
    I did not try this out but I think it's a smart way to do this, why waste energy if you don't login, if this is build into OS X Apple made a good choice to do so.

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