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replace video

  1. I

    iMac 27" 2011 does not turn on after upgrade

    Hi After upgrading to replace the video card and processor, the iMac 27" 2011 does not turn on, the first LED on the motherboard blinks. After I took out the memory and battery overnight, the first LED began to light constantly, but the iMac still wouldn’t turn on. What could be the problem ?
    • igop
    • Thread
    • imac (27" mid 2011) replace processor replace video upgrade 2011 mid
    • Replies: 3
    • Forum: iMac
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