failing Radeon 2600XT head?

Discussion in 'Mac Pro' started by williemyers, Feb 28, 2016.

  1. williemyers macrumors newbie

    Joined:
    Jan 1, 2009
    #1
    hey guys...
    My MacPro 3,1 has been successfully using it's ATI Radeon 2600XT to drive 2 x 25" ASUS monitors for about 3 years now. That would be under OSX 10.8.5 or OSX 10.11.3.
    Now, occasionally on restarts - or some bootups - the "secondary" monitor shows nothing, reports "DVI no signal" and goes to sleep. The "primary" monitor (the one with the menu bar) has no such problems.
    I have switched monitors and cables in all possible combinations to make sure that it's not a monitor or cable issue. I have removed & reseated all memory and the GPU and no difference. I have run extended AHT and it shows no problems.
    Does it sound like I have a video card about to die?

    thanks in advance
     
  2. MacVidCards Suspended

    Joined:
    Nov 17, 2008
    Location:
    Hollywood, CA
    #2
    Yes it does. Clean the gold fingers on PCIE slot part of card, and start looking for a replacement
     
  3. Machines macrumors 6502

    Machines

    Joined:
    Jan 23, 2015
    Location:
    Fox River Valley , Illinois
    #3
    Learn how to re-thermal paste your video card and also regularly remove all dust from the cooler . Older cards die because they get too hot . Dry paste and dust contribute to over-heating situations .
     

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