iMac shut's down by itself...

Discussion in 'iMac' started by, Apr 10, 2010.

  1. macrumors newbie

    Apr 10, 2010
    My iMac (21.5") turn off by itself and it doesn't turn on until I unplug the AC from the back and let it rest for at least half hour!!! If I try to turn it on I only get fan and drive noise but no screen at all... The longest time I let it rest, the more time that I can use it. I already reset PRAM. I'm runing 10.6.3 and the biggest software I use is ArchiCAD 13...

    Does anybody have a similar issue with his/her iMac?

    PS. Sorry, I don't speak/write good English but I did my best...
  2. natewsmith macrumors regular

    Sep 9, 2007
    Santa Clara, CA
    I'd just call Apple Care and have them ship you a new unit.
  3. Hellhammer Moderator


    Staff Member

    Dec 10, 2008
    Sounds like a PSU or logic board issue. Call Apple ASAP and get it fixed

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