Pixilated screen :Video controller error 4V DC 1140000003
My Imac boots up intermittently to a pixilated screen, or a white screen with vertical bars, sometimes goes as far a desktop, but that is pixilated as well and freezes. The AHT shows this code: Video controller error 4V DC 1140000003. External monitor shows the same pixilation as main monitor. My Question is where the video controller is located, and if I can fix this by simply replacing the logic board. Thanks for any tips.
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Thank you Dan. I have the MXM daughter board , and I just send it of to California to get repaired. We will see how that pans out. Cheers, J
из Jurgen