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  1. #1


    Member Since
    Apr 12, 2008
    Posts
    457
    Shut down then restarts
    Hi all,
    Went away for a couple of days, so shut down my iMac,
    When I get back, the iMac has powered itself up, and shows the login screen.
    Why would it do this? And if I don't want it to do this, do I have to physically unplug it from the mains?
    Thanks

    iMac is 2007 2.8GHz Core 2 duo, 4G ram, running OS X 10.6.5

  2. #2

    roflitskyle's Avatar
    Member Since
    Dec 23, 2010
    Location
    United States
    Posts
    544
    Specs:
    MacBook Unibody 13" 150 GB HDD
    Do you have it to auto turn on at a certain time?

  3. #3


    Member Since
    Apr 12, 2008
    Posts
    457
    No. Nothing set there.
    I do have Applecare. And maybe I should phone them, but I may be getting slightly cynical about the help they give. I have phoned them before regarding sleep issues, which I still have. They basically boil it down to:

    reset PRAM
    reset SMC

    This seems to solve sleep problems for about a day, then they start again.
    But I read somewhere that these two resets shouldn't be used that often.

  4. #4

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    49,464
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    Open System Preferences, Energy Saver, click on the Power Adapter tab.

    Make sure you have not checked off the box that says: "Wake for network access". And also the box that says: "Startup automatically.........."

  5. #5


    Member Since
    Apr 12, 2008
    Posts
    457
    None of them checked.
    Do you think I have to simply unplug from the mains, or is there something amiss?

  6. #6

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    49,464
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    For now I would unplug the machine from the AC main circuit. There is obviously something wrong if it turns on by itself. It may have something to do with the sleep problems you wrote about. Normally a SMC reset should cure the sleep problem and the coming on by itself, however, you say that you've already done that several times. Time to take it on in and let Apple look at it.

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