New iMac shuts down randomly and won't turn on again
I purchased an iMac before Christmas and after a week it started to turn off randomly, then it go so bad it would only stay on for a few seconds.
As the iMac was within the 14 period of purchase, apple replace the iMac without question.
However, with my replacement iMac I am now having the same issue! Today the iMac tuned off and again will not turn back on again.
I think it would be quite unlucky to have two bad machines, however I'm not ruling that out... I can't believe this has happened again.
I've unplugged everything from the machine including usb and Ethernet.
The longer I keep the machine off, the longer it stays of for. So, to me that sounds like it must be the hardware.
Does anyone know if this can be a software issue? Something with the firmware of the computer?
Any suggestions would be welcome!
Thanks
iMac (21.5-inch, Late 2012), OS X Mountain Lion (10.8.2)