Aluminum iMac A1224 Blue Screen issue

Discussion in 'iMac' started by jnewman67, May 11, 2012.

  1. jnewman67 macrumors newbie

    May 11, 2012
    Have an iMac that won't boot fully (visually anyway). Was working fine, then the issue started. Pulled the drive to recover some live files - drive was fine. When booting from the harddrive, the apple logo appears on the grey background, the spoked wheel spins, then the screen switches to a blue background, the mouse appears, then 20 minutes later, it goes to sleep. Pressing any key wakes it back up.

    The problem is that after the blue background and mouse appear, i get no login screen, no desktop icons, no menu bar, no anything. The mouse moves and the system doesn't appear to be frozen.

    Booting from a 10.5 or 10.6 install CD gets me EXACTLY the same thing.

    Just for fun, I booted up from a Fedora 8 LiveCD, and I get the full deal - menus, internet, file system - fully functional, like nothing was wrong.

    I booted into basic Single User mode, and ran FSCK - no problems, disc was clean. When I pushed it to run /etc/rc, it got to the point where it showed the network had been initialized, then hung. poking through the system logs, I can see that I have a login manager that starts up, then it has an ASIC LOG that starts after that point, it ENDS, then by the timestamps, 20 minutes later it goes to sleep.

    Would really like to get this back to a usable state, but my poking around hasn't found anything that really behaves like this. I did try zapping the PRAM (4 chimes). I did try unplugging and holding the power button down to drain the motherboard.

    Anyone have any thoughts?

    Thanks in advance.
  2. jnewman67 thread starter macrumors newbie

    May 11, 2012
  3. Intell macrumors P6


    Jan 24, 2010
    This is a Mid 2007 iMac. It is really strange that both the 10.5 and 10.6 cd does that as well. What about the restore discs that came with the machine? Do you have another Intell Mac?
  4. jnewman67 thread starter macrumors newbie

    May 11, 2012
    No, I don't have those available, nor do I have another Mac available either.
  5. skinny*k macrumors regular

    Feb 21, 2011
    This is just a shot in the dark, J, but try booting after unplugging everything except the mouse; a peripheral, even a USB hub, might be mucking things up.

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