2012 27" iMAC troubleshooting

Discussion in 'iMac' started by Sandman1969, Nov 8, 2016.

  1. Sandman1969 macrumors 6502a


    Nov 5, 2007
    One of our 2012 iMACs began behaving oddly the other night. Son had me come look at the screen and it was stuck at the Apple logo screen with a few vertical lines on it. I had him power it off until I could get to it.
    I looked at it last night and it won't power on at all. So, I am guessing it is a bad power supply, or possibly switch? I was hoping it would be something simple like needing to reset the firmware or the like. However, it doesn't do anything. What can I do next to troubleshoot. Should I go ahead and order a power supply to swap out?

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