Monitor image breaking up - crashing monitor

Discussion in 'Mac Pro' started by jwhitt, Oct 12, 2012.

  1. jwhitt macrumors newbie

    Joined:
    Oct 12, 2012
    #1
    Whenever I use a web browser it works fine for a while then the image breaks up on my monitor and I must restart the Mac to fix it. I suspect Flash may be the problem.
    I had this problem before and updated the video card drivers and Flash plug in software and that fixed the problem. Then recently I installed a new SSD drive from OWC and cloned my start up drive to the SSD which I now use as my start up drive. Now the problem is back.

    http://eshop.macsales.com/item/Toshiba/HNSNC512GBSJ/?APC=READERSPC&Source=Blast12Sep

    I have a 2009 Mac Pro 2.66 (MacPro4,1), 10.6.8 system. Two NVIDIA GeForce GT 120 video cards, one HP LP3065 30" Monitor and one HP 2335 24" monitor

    Model Name: Mac Pro
    Model Identifier: MacPro4,1
    Processor Name: Quad-Core Intel Xeon
    Processor Speed: 2.66 GHz
    Number Of Processors: 1
    Total Number Of Cores: 4
    L2 Cache (per core): 256 KB
    L3 Cache: 8 MB
    Memory: 7 GB
    Processor Interconnect Speed: 4.8 GT/s
    Boot ROM Version: MP41.0081.B07
    SMC Version (system): 1.39f5
    SMC Version (processor tray): 1.39f5
    Serial Number (system): H09313TX4PC
    Serial Number (processor tray): J5927032Y4MFE
    Hardware UUID: D48A0256-E177-54DB-AAFD-8C151BB490CF

    Any suggestions? I could go back to using my old start up hard drive, but it is so much slower than the SSD drive.
     
  2. goMac macrumors 603

    Joined:
    Apr 15, 2004
    #2
    What's your graphics card? Sounds like your graphics card may be dying.

    Edit: Hm, just noticed the two GeForce GT120s. Is it just one display or both?
     
  3. Draeconis macrumors 6502a

    Joined:
    May 6, 2008
    #3
    Might be an idea to remove your serial numbers and UUID from your post.

    Sounds like a dying gfx card.
     

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