Mac Pro Problem

Discussion in 'Mac Pro' started by Lastaria, Feb 4, 2014.

  1. Lastaria macrumors newbie

    Jun 5, 2008
    Liverpool, England

    For several months now I have had problems with my Mac Pro (Desktop)

    I would get colours appearing n patches in my apps like Safari and iTunes. Then it started getting worse with pixels appearing across the screen and lines.

    Then I would get crashes. These would involve the desktop freezing. The cursor would still move around but could not open anything, move windows and the clock had frozen.

    Sometimes the freezes would occurs within seconds of turnng on or rebooting the computer, other times the computer can go for sometime without crashes. But usually when the lines across the screen, pixels or patches occurs a crash comes soon after.

    I have tested all the ram by removing all and then testing each one at a time and that does not solve it. And I know it is nt a software issue as I have anther hard drive involved running windows through Bootcamp and that hard drive has the same issues.

    I hope you can help.

  2. djarum69 macrumors member

    Jan 24, 2007
    My guess is video card. When my original video card started going it acted similar to this.
  3. snouter macrumors 6502a

    May 26, 2009
    Yeah, feels like video card because the pixels are messing up.

    Bad ram usually just crashes or freezes in my experience.
  4. Lastaria thread starter macrumors newbie

    Jun 5, 2008
    Liverpool, England
    This is my thought as well. Replacing video cards are expensive though so want to make sure before doing so. A friend did suggest could be the internal clock? But I am not sure.
  5. James Craner macrumors 68000

    James Craner

    Sep 13, 2002
    Bristol, UK
    Yep, sounds like the video card. I had a similar problem on my 2006 Mac Pro. New video card fixed the problem.
  6. ActionableMango macrumors G3


    Sep 21, 2010
    Sounds like a video card to me too. If you are worried about being wrong, just be sure you buy from a seller with a fair return policy.
  7. funwithdesign macrumors regular

    Dec 9, 2011
  8. Lastaria thread starter macrumors newbie

    Jun 5, 2008
    Liverpool, England
    ATI Radeon HD 4870 512MB
    When I bought the Mac Pro I upgraded to this more power card. Kinda wish I had stuck with the standard Ndivia now.

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