Anyone have this problem with their iMac?

Discussion in 'iMac' started by flipangle, Nov 26, 2010.

  1. flipangle macrumors regular

    Joined:
    May 11, 2010
    #1
    This has been happening to me intermittently. After coming out of sleep or rarely while I'm using my iMac, the screen gets "broken up". A reboot always puts things back to normal. Is this a video card problem? Thanks.

    [​IMG][/IMG]
     
  2. rkaufmann87 macrumors 68000

    rkaufmann87

    Joined:
    Dec 17, 2009
    Location:
    Folsom, CA
  3. bobr1952 macrumors 68020

    bobr1952

    Joined:
    Jan 21, 2008
    Location:
    Melbourne, FL
    #3
    I've had those very same graphic effects on my iMac. Graphics problems happen--if they happen once or twice and they are resolved by a reboot, then the cause is most likely a corrupted file of some kind (which was my case). If the problem persists, then the graphics card may be a likely culprit. Hardware test is a good first step.
     
  4. flipangle thread starter macrumors regular

    Joined:
    May 11, 2010
    #4
    Thanks, guys. Will do the check as suggested. This error is irritating as sometimes I'm forced to do a hard reboot. Where can I find a video card for a 3-4 yr iMac if it turns out to be the problem?
     
  5. 2macman macrumors member

    Joined:
    Nov 20, 2010
    #5
    sleep mode problem

    Last year I got 4 brand new 24 iMacs, straight out of the box.

    ALL OF THEM did not come out of sleep mode.

    I retuned them one by one and got another one.

    I finally kept the last one and never use sleep mode.

    That was the best solution the Apple tech came up with.
     
  6. flipangle thread starter macrumors regular

    Joined:
    May 11, 2010
    #6
    Well I ran the extended Apple Hardware Test and it turned out normal. I'm at a loss as to what to do next. Any suggestions? I don't want to have to do the nuclear option: Wipe and reinstall.
     
  7. MonkeySee.... macrumors 68040

    MonkeySee....

    Joined:
    Sep 24, 2010
    Location:
    UK
    #7
    I know what this problem is.

    You see when you turn the machine on and do the .............. wait, Holy **** is that elmo!?
     
  8. bobr1952 macrumors 68020

    bobr1952

    Joined:
    Jan 21, 2008
    Location:
    Melbourne, FL
    #8
    One other suggestion is heat--get a temperature monitor to check temps and see if the graphics processor is getting excessively hot--and the fans don't kick in to cool it down.
     

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