iMac 2011 auto sudden close then I can't open it.
Help me ! My iMac 21.5" Mid 2011 suddenly close automatic. After that it can't open. I can't turn on.
iMac, OS X Mountain Lion (10.8.2)
Hello, let it cool an hour or so, see if it starts & if you can...
Get Temperature Monitor to see if it's heat related...
http://www.macupdate.com/info.php/id/12381/temperature-monitor
iStat Menus...
http://bjango.com/mac/istatmenus/
And/or iStat Pro...