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  • 820-00426 no video

    Arrived with no liquid damage. Boots and chimes but no video on external or internal. GPU Vcore 0.849V Put fresh solder on U8900 joints but no change. Should U8900 be replaced next?

  • #2
    U8900 is not a known issue on this board.
    Can you confirm USB activity?
    Did you try PRAM reset?

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