Graphical Glitch with 2010 MP, ATI 5770

Discussion in 'Mac Pro' started by steveOooo, Aug 6, 2015.

  1. steveOooo macrumors 6502a

    Jun 30, 2008
    (pixelation bottom right this was constantly flickering)

    Over the past 3-6 months or so, I've noticed the odd flash where the screen shows a jumbled pixellen mess - digital distortion.

    Today there was constant flicker in the lower half of the screen, i closed all programs, then it stopped.

    Could this be a sign my 4 year old Mac Pro / ATI Radeon 5770 is on its way out?

    Im running 10.8.5
  2. hbanko macrumors newbie

    Aug 10, 2015
    Sydney, Australia
    Judging from the picture it could be a memory issue on your 5770. I played around a lot with my 5840 on a PC before I flashed it for the Mac. If you have a Windows running on your Mac via Bootcamp, I suggest to use e.g. GPU-Z to keep an eye on temperature of the card. I had similar artifacts when I overclocked memory too much.

    If you find it to be temperature related, I would give it a good blow with some compressed air.

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