Can anyone explain this??? Weird stripes upon return to Mac OS X Lion

Discussion in 'Mac OS X Lion (10.7)' started by MacRum2011, Aug 28, 2011.

  1. MacRum2011 macrumors regular

    Joined:
    Jul 14, 2011
    #1
    I was using iMac and I went away for about an our and upon return this is what was on the screen:

    [​IMG]

    Anyone help out to what this issue is? Its the first time i have ever seen it on any computer i have used. All being normal windows PCs and this iMac being my first ever Mac.
     
  2. Hugh macrumors 6502a

    Hugh

    Joined:
    Feb 9, 2003
    Location:
    Erie, PA
    #2
    If you are near an Apple store I suggest that you take to them. There might be a problem with the GPU in the unit (no you can't replace it). If you are not near an Apple store then give them a call.

    Hugh
     
  3. Mr.C macrumors 601

    Joined:
    Apr 3, 2011
    Location:
    London, UK.
    #3
    I agree. I suspect it may well be a problem with the GPU. It's possible it may be over heating.
     
  4. MacRum2011 thread starter macrumors regular

    Joined:
    Jul 14, 2011
    #4
    i'm no longer under AppleCare, it ran out 5 August 2011...Darn It!!! Won't it be expensive.
     
  5. FSMBP macrumors 68020

    FSMBP

    Joined:
    Jan 22, 2009
    #5
    If you get a kind Genius, it could be free. Not to give you false hope but my Mac's logic board completely died. I never purchased Apple Care & was 3 years out of warranty - free replacement (would have cost $900+). That one incident has honestly guaranteed that my next computer will again be a Mac.
     
  6. freedevil macrumors 6502a

    freedevil

    Joined:
    Mar 7, 2007
    #6
    This problem plagued me with 2 GPU replacements, the only solution was running a maxed out fan control utility. I use iMac fan control daemon. No more silly glitches and graphical errors.
     
  7. fullojellybeans macrumors regular

    Joined:
    Mar 31, 2010
    #7
    Apple may cover your unit up to 45 days out of warranty. Can't hurt to try it. Just saying.
     
  8. MacRum2011 thread starter macrumors regular

    Joined:
    Jul 14, 2011
    #8
    i just restarted the mac after that happened and all was ok and still is today. I had finished export an iMovie project (20 minute 720P) just before i left the mac and iMovie really does max out the iMac with CPU over 100% and ram at 3.99GB. (being an 2008 iMac 4GB is the limit).
     
  9. xraydoc macrumors demi-god

    xraydoc

    Joined:
    Oct 9, 2005
    Location:
    192.168.1.1
    #9
    Overheating, most likely.
     

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