SERIOUS imac G5 problem, wont' boot

Discussion in 'PowerPC Macs' started by biohazard6969, Jan 16, 2006.

  1. macrumors 6502a

    biohazard6969

    Joined:
    Feb 23, 2005
    Location:
    toronto canada
    #1
    ok i popped in the tiger intall disc to do an archive and install cause i was having some speed issues and thought it might help, but it won't restart it gives me this "no exit" type sign and i eventually unplugged it and plugged it back in and the same thing happened, i have EVERYTHING on this computer, and i don't know what this sign means but it obviously can't be good

    i need help ASAP

    thanks

    also, it starts off as the apple logo then changes to this symbol after about a minute of inactivity
     

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  2. Moderator

    Nermal

    Staff Member

    Joined:
    Dec 7, 2002
    Location:
    Whakatane, New Zealand
    #2
    Reboot and hold Cmd-Opt-O-F at the chime, then type:

    reset-nvram
    set-defaults
    reset-all

    The system will reboot. Hold Option at the chime and boot from the DVD, and see what happens.
     
  3. thread starter macrumors 6502a

    biohazard6969

    Joined:
    Feb 23, 2005
    Location:
    toronto canada
    #3
    ok i did that and it opened a screen that went rele slowly, but it gave me two choices, macintosh HD or the tiger install disk, i chose the disk, and it did the exact same thing, except now the fans are running at full click!!! its getting worse :( what do i do!
     
  4. thread starter macrumors 6502a

    biohazard6969

    Joined:
    Feb 23, 2005
    Location:
    toronto canada
    #4
    ok this time i just booted from macintosh HD and everything seems fine.....any idea what that sign means??? i'm guessing somethings wrong with my tiger disk :confused:
     
  5. Moderator

    Nermal

    Staff Member

    Joined:
    Dec 7, 2002
    Location:
    Whakatane, New Zealand
    #5
    The fans going at full tilt is normal :)

    Yeah, it does sound like something's wrong with your disk. Try making a copy of it, then boot from the copy - sometimes this helps.
     
  6. thread starter macrumors 6502a

    biohazard6969

    Joined:
    Feb 23, 2005
    Location:
    toronto canada
  7. Moderator emeritus

    mkrishnan

    Joined:
    Jan 9, 2004
    Location:
    Grand Rapids, MI, USA
    #7
    What kind of disc is it, and where did it come from? Is it the system restore/install disc that came with that particular computer, or one that came with another one of your macs? Also, have you tried putting it in while booted, and then rebooting from the option in the system preferences -> startup disc pane?
     

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