What on earth happened to my mac? (Crashing and never turning on!)

Discussion in 'iMac' started by 032806, Jun 7, 2016.

  1. 032806 macrumors newbie


    Jun 7, 2016
    Hi guys, this is what happened to my iMac (2009 Version) when I tried turning it on. After this phase happens, it just switches to a white screen then crashes to a black screen and the whole cycle repeats. Anyone knows what is happening?

  2. MasterCheesus macrumors newbie

    Jun 7, 2016
    Very likely GPU failure but possible RAM failure also.
  3. Samuelsan2001 macrumors 604

    Oct 24, 2013
    Yep looks like GPU or RAM failure as stated above.
  4. BrianBaughn macrumors 603


    Feb 13, 2011
    Baltimore, Maryland
    To check your RAM, shut down, remove one stick of RAM, restart. Repeat for the other stick.
  5. MasterCheesus macrumors newbie

    Jun 7, 2016
    Trial and Error will work but I'd recommend a program like MemTest86 and test each stick separately to be definitive. Could rule out good sticks that are failing. Also, try sticks in different slots as the slot on the motherboard/logicboard could be damaged.

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