Results 1 to 10 of 10
  1. #1


    Member Since
    Apr 15, 2008
    Posts
    33
    Help! My Mac won't boot (G5 iMac on Panther 3.9)
    Hi guys,
    I left my (pre intel G5) iMac for about an hour. Nothing has been usual lately (no slowness or hard drive noises etc) and it had gone into sleep mode. When I woke it up the screen was frozen.

    I restarted and since then I have either got the dreaded question mark showing the OS can't detect the hard drive or I get a no entry sign instead of the Mac logo.

    I have tried booting from some diagnostic disks and the harddrive doesn't appear in the list of drives to analyse (my external drive appears).

    I have tried rebooting a few times and it has started up but then frozen after a minute or two.

    I tried booting in safe mode and I am now getting the following message:
    unable to find driver for this platform: "powermac8,1" and a whole bunch of other stuff...

    Also no debugger congfigured - dumping debug information..

    Panic.. we are hanging here ... etc!


    Also I can't eject the disk utility desk now! I know you can hold down the mouse button and eject the desk but I don't have a mouse any more as I am using a graphics pad.. and it doesn't seem to be working with my graphics tablet... I tried holding down my tablet left button and instead of the chime was a long beep sound fropm the mac speaker which I've never heard a mac make before!!

    Update - when trying to re-install the software (I tried the Panther, also the Tiger OS install disk) there are no destination drives to install to under 'Select a destination'.

    It doesn't seem to be a hardware problem, but it may well be - but I have no ideas at the moment. Any ideas guys? Thanks in advance...

  2. #2

    Soulwar's Avatar
    Member Since
    Jan 27, 2008
    Location
    Estero, FL
    Posts
    1,515
    Specs:
    iMac 17" 1Ghz G4  iPhone 3G  10.5.5
    When all else fails, try everything!
    The Rep System and you.
    Life's a joke...If you're not laughing, then you didn't get it.

    June 2008


  3. #3


    Member Since
    Apr 15, 2008
    Posts
    33
    Thanks for those resources, I'm still looking through them but unfortunately I don't think they are much help, although I will be reading the last one in more detail later. As a last resort the 'Resolving Kernel Panics' page says to re-install the system software from the disk, which I have already tried... but there are no listed harddrives in the 'select a destination' window when I try to re-install the system.

    Again - disk utilities don't see any hard drives (other than any external drives I had plugged in)

    I think this is a case for dead hard drive man...

  4. #4
    MacHeadCase
    Guest
    It could be RAM going bad as well. Did you install any third-party RAM ? If so, remove them and see if that doesn't help. If not, I've read on occasion that factory-installed RAM could be defective too but it doesn't happen too many times though.

    And about the trying to reinstall OS X bit, did you try unplugging all unnecessary peripherals ? You mentioned your graphics tablet, I would unplug everything you don't need just in case it confuses the ailing system.

    One beep, according to Apple.

    Hope this helps.

  5. #5


    Member Since
    Apr 15, 2008
    Posts
    33
    Thanks yes - everything unplugged (apart from a usb mouse!).

    I had a similar problem about a year ago... but the hard drive was making clicking (i.e. obviously dead) sounds.. I replaced it and all was fine.

    However, never thought RAM Could be an issue - I had some third part ram installed about 2-3 years ago... I'll remove it and see what happens when I get some time later.

    As my time is limited (as I'm desperately trying to get work done on a very slow backup machine) I'm thinking of just trying a replacement drive if it's not the RAM.

    It's SATA drive I know that part, but does anyone know the specs for a drive for this model? The pre-Intel (pre-isight) G5 iMac. The first G5 iMac.

  6. #6

    Soulwar's Avatar
    Member Since
    Jan 27, 2008
    Location
    Estero, FL
    Posts
    1,515
    Specs:
    iMac 17" 1Ghz G4  iPhone 3G  10.5.5
    I was thinking the ram and/or HDD myself.

    http://www.everymac.com/systems/appl...g5_1.6_17.html
    When all else fails, try everything!
    The Rep System and you.
    Life's a joke...If you're not laughing, then you didn't get it.

    June 2008


  7. #7


    Member Since
    Apr 15, 2008
    Posts
    33
    Well - I just eliminated the RAM thing... so it looks like the HD...

    I have everything backed up (work files etc on another drive) - apart from somehow I missed my music and photos folders - so may have lost a year of photos and iTunes downloads.. but hopefully I can get the data off the drive another time

  8. #8


    Member Since
    Apr 15, 2008
    Posts
    33
    I've set up a new topic to help me find what hard drive I need here:

    http://www.mac-forums.com/forums/sho...585#post645585

  9. #9
    MacHeadCase
    Guest
    Quote Originally Posted by frisbeefodder View Post
    Thanks yes - everything unplugged (apart from a usb mouse!).

    I had a similar problem about a year ago... but the hard drive was making clicking (i.e. obviously dead) sounds.. I replaced it and all was fine.

    However, never thought RAM Could be an issue - I had some third part ram installed about 2-3 years ago... I'll remove it and see what happens when I get some time later.

    As my time is limited (as I'm desperately trying to get work done on a very slow backup machine) I'm thinking of just trying a replacement drive if it's not the RAM.

    It's SATA drive I know that part, but does anyone know the specs for a drive for this model? The pre-Intel (pre-isight) G5 iMac. The first G5 iMac.
    Clicking sounds ? That's a dead give-away to a failing hard drive. But it's really strange that you'd end up with two failing hard drives...

  10. #10


    Member Since
    Apr 15, 2008
    Posts
    33
    Yes it is strange, however I do use the Machine quite heavily... the first hard drive to go was the original one, as above it made clicking/ticking sounds as it was a mechanical fault.

    But the one I have now just died it seems.. and isn't detectable by any disk utilities.. and can't be seen when I access the drive via Firewire from another Mac.

    I bought a new drive today and will post how it goes when I get the time to actually sit down and look at this!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Bless tool unable to set current boot disk... now mac pro won't boot at all.
    By name_is_david in forum OS X - Operating System
    Replies: 1
    Last Post: 05-11-2015, 06:07 PM
  2. Replies: 20
    Last Post: 04-27-2011, 03:46 PM
  3. iMac G5 won't boot, won't load ext HDs
    By photokaty in forum Apple Desktops
    Replies: 0
    Last Post: 06-14-2009, 04:30 PM
  4. Mac won't boot after Tiger Update from Panther!
    By SteveinSpain in forum OS X - Operating System
    Replies: 7
    Last Post: 11-29-2005, 12:25 PM
  5. Panther install cd won't boot
    By chrisb2999 in forum OS X - Operating System
    Replies: 1
    Last Post: 08-02-2005, 07:43 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •