iMac will not boot.

Discussion in 'macOS' started by WetcoastBob, Dec 29, 2011.

  1. WetcoastBob macrumors newbie

    Joined:
    Sep 15, 2007
    Location:
    Saltspring Island, Canada
    #1
    My iMac OSX 10.6.8 will not boot.

    After power button is pushed It "Chongs", shows apple logo with gearwheel underneath and after 42 seconds the screen goes blue. Every now and again the gearwheel is active for a few seconds then disappears for a few seconds and then reappears for a few seconds.... and that is it!

    When the gearwheel is absent I have a mouse cursor which I can move with my magic mouse.

    I have tried to boot off the install disk. Same result.

    I have done a smc reset, an NVRAM reset to no avail.

    It will start up in Targe Disk mode.

    Motherboard Kaput?
     
  2. Schtumple macrumors 601

    Schtumple

    Joined:
    Jun 13, 2007
    Location:
    benkadams.com
    #2
    Could be a RAM issue, if you've got any spare, try swapping out what you've got in there, or take the 1st one out, if it still does it, take the 2nd out and put the 1st back in.
     
  3. WetcoastBob thread starter macrumors newbie

    Joined:
    Sep 15, 2007
    Location:
    Saltspring Island, Canada
    #3
    Solved

    Thank you for your prompt reply.

    I realized that I had yet to do a safe boot. I did this successfully and the re-booted and all seems well :)

    I really wonder what happened.

    Thanks:
    Bob
     
  4. SplicedBanjo macrumors regular

    Joined:
    Dec 13, 2011
    #4
    It doesn't make sense to me that booting from the install disc would be exactly the same problem. Are you absolutely sure you were booting from the disc? Did you hold down the C key? You could also hold down Option and use the Boot Camp selector. I think you can also hold command-option-shift-delete.
     
  5. Schtumple macrumors 601

    Schtumple

    Joined:
    Jun 13, 2007
    Location:
    benkadams.com
    #5
    Fair enough, glad you got it all working again.
     
  6. WetcoastBob thread starter macrumors newbie

    Joined:
    Sep 15, 2007
    Location:
    Saltspring Island, Canada

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