2012 27" iMAC troubleshooting

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

  1. Sandman1969 macrumors 6502a

    Sandman1969

    Joined:
    Nov 5, 2007
    #1
    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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