Resolved 2009 MP major graphics problems & crashing loop

Discussion in 'Mac Pro' started by Kissaragi, May 1, 2016.

  1. Kissaragi macrumors 68020

    Joined:
    Nov 16, 2006
    #1
    Hi, this morning when using my 2009 mac pro I suddenly had the screen go white. I restarted and found small horizontal lines across my login picture but a second restart seemed to solve that until I had another white screen after a few minutes of use. The third restart led to vertical lines, solid colours over the screen, parts of the screen disappearing, flashing and various other problems.

    I assumed my graphics card was faulty and needed replacing but now every time I start up I have small short vertical lines across the whole screen and I can't get past the log in before the screen goes white, then black, then to the your computer encountered a problem screen in a loop of crashing and restarting

    Im wondering if this could be the motherboard failing or if the GPU could cause the crashing?

    Im running the sapphire mac edition 7950 and I've tried resetting the SMC and PRAM with no effect.

    Thanks all
     
  2. pastrychef macrumors 601

    pastrychef

    Joined:
    Sep 15, 2006
    Location:
    New York City, NY
    #2
    I would put my money on faulty graphics card.
     
  3. Kissaragi thread starter macrumors 68020

    Joined:
    Nov 16, 2006
    #3
    Thanks for the reply. The GPU can cause the constant crashing then? I was all set to order a new card until I found the machine was in this loop of constant crashes.
     
  4. pastrychef macrumors 601

    pastrychef

    Joined:
    Sep 15, 2006
    Location:
    New York City, NY
    #4
    A faulty graphics card can cause all sorts of anomalies.
     
  5. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
  6. Synchro3 macrumors 65816

    Synchro3

    Joined:
    Jan 12, 2014
  7. Kissaragi thread starter macrumors 68020

    Joined:
    Nov 16, 2006
    #7
    I found a flashed 680 for a reasonable price so ill give that a go when it arrives. Thanks for the help everyone.
     
  8. MacVidCards Suspended

    Joined:
    Nov 17, 2008
    Location:
    Hollywood, CA
    #8
    Try holding shift down.

    Sometimes this will allow machine with ad GPU to get to desktop.

    8800GT with your symptoms have better than 50/50 odds of getting baked back to life.

    Other cards are good for e-recycle.
     
  9. Kissaragi thread starter macrumors 68020

    Joined:
    Nov 16, 2006
    #9
    The nvidia gtx 680 came today and it solved all the problems, thanks for the help guys.
     

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