rx 6800xt pixel flashing disco lights

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  • davetheshrew
    Member
    • Aug 2022
    • 17
    • United Kingdom

    #1

    rx 6800xt pixel flashing disco lights

    So Ive aquired a rx6800xt which i believe was dropped at some point by previous owner, it artifacts (pixels shifting) in desktop and in 3dmark i get disco lights (multicoloured flashes. Ive ruled out the ram because I can mine eth (very ram dependent) or heavier algo's full power without issue or stale shares/errors. Ive tested resitances and they seem to be good on all points (12v, mem, pcie lanes etc). Under microscope theres no missing components. A repair guy said to me its likely dying core which got me thinking.

    Since it was dropped is it possible some balls cracked under the gpu? I have a preheat table, decent hot air, might be worth a try reflowing it? I know reflow is pretty dumb most instances but does anyone think it might be worth a shot? at the very least to identify if this is the issue?

    Is there anything else you think I should look at that would give me this weird behaviour?

    Thanking you kindly
    Last edited by davetheshrew; 08-20-2022, 08:29 AM.
  • davetheshrew
    Member
    • Aug 2022
    • 17
    • United Kingdom

    #2
    Re: rx 6800xt pixel flashing disco lights

    can anyone help? think its a dying core?

    Comment

    • ktmmotocross
      Boardkiller
      • Feb 2014
      • 3587
      • slovakia

      #3
      Re: rx 6800xt pixel flashing disco lights

      memory error. test it

      Comment

      • davetheshrew
        Member
        • Aug 2022
        • 17
        • United Kingdom

        #4
        Re: rx 6800xt pixel flashing disco lights

        with what? as far as I know theres nothing to test memory on rx 6xxx cards yet or am I wrong?

        Comment

        • ktmmotocross
          Boardkiller
          • Feb 2014
          • 3587
          • slovakia

          #5
          Re: rx 6800xt pixel flashing disco lights

          yes u r wrong, but as u can mine eth ram is out of the way. so it must be displaying subsystem. did u check all display connectors?

          Comment

          • kisnovo
            Member
            • Jan 2022
            • 14
            • China

            #6
            Re: rx 6800xt pixel flashing disco lights

            用mentune测试一下

            Comment

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