MBP not booting past grey screen with logo

Discussion in 'MacBook Pro' started by tasoton, Oct 14, 2011.

  1. tasoton macrumors newbie

    Joined:
    Oct 14, 2011
    #1
    Hi All

    Hoping someone with more knowledge then myself can help me work out what wrong with my 15" Macbook pro (model A1226, 2gb ram, 2.4 core 2 duo) running Lion.

    Since this morning I can't boot past the grey/blue screen with the apple logo and spinning wheel. Also weird vertical lines on the screen (see attached photo).

    It was fine last night when I put it to sleep but this morning when I opened the lid, the screen was black. I waited a few minutes but no change so did a hard reset by holding the power button for 5 seconds. Ever since then I've been unable to boot.

    Things I have tried include:

    Booting in safe mode (Holding shift) - Progress bar completes but then spinning wheel appears and eventually freezes

    Resetting NVRAM / PRAM (holding Cmd, opt, p, r) - Not helped

    I have tried booting from my setup disc which came with the MBP but it’s just being spat out, the disc is a bit scratched so thinking maybe it can't be read.
    I have run fsck by entering single user mode and typing /sbin/fsck -fy, but also no luck.

    I'm on lion and don't have an install CD, I tried booting from a snow leopard install USB but it comes up with kernel panic screen which asks me to force restart.

    I have only just recently had to replace the Nvidia chipset due to a black screen and no video output, wondering if this is connected somehow or if its something completely different?

    Any help would be greatly appreciated.
     

    Attached Files:

  2. Detrius macrumors 68000

    Joined:
    Sep 10, 2008
    Location:
    Asheville, NC
    #2
    It's hard to tell for certain from the photo, since the lines are really faint, but at first glance, that looks like you got a bad logic board. That pattern is common on machines that fail the Graphics Processor Test.
     
  3. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia

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