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  1. #1
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Help! iMac Stuck on Start-up
    Hi All

    I have an iMac PPC G4 running 10.5.8

    When I turn it on I get the start-up bong, briefly I get a grey screen then it turns blue and then I'm stuck with the multi-coloured spinning wheel.

    I'm totally clueless as to what to do!

    Can anyone suggest any fix?

    Regards
    Raff

  2. #2
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Update.

    Just tried restarting again and got to the enter password screen and entered my password, pressed enter and it's stuck on the spinning wheel again.

    Confused??????

  3. #3
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Another Update.....

    Only yesterday I put the 'require password' option on. I now can't get past this without it freezing. Is there anyway I can bypass this? I'm sure if I can do this the desktop wil load and it'll work like before????

  4. #4
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Sorry it's a G5 not 4. See, I am clueless :-(

    Anyone?

  5. #5
    Help! iMac Stuck on Start-up
    TrollyMcTrolls's Avatar
    Member Since
    Nov 15, 2011
    Posts
    6
    Sounds to me like your operating system boot has corrupted. Your files are safe, but if you have not done a backup, you will need to gather them by using another computer.

    There are two paths you can take towards fixing your operating system:

    1) Re install Operating System.

    This is the easiest path to take. There are quite a few guides on the internet for you to view.


    2) Try to repair operating system.

    This will consist of you finding out what file or files have been corrupted and replacing them with a fresh copy. This is the more advanced path which I do not recommend.


    Hope this helps,



    Trolly Mc Trolls

  6. #6
    Help! iMac Stuck on Start-up
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    20,056
    Specs:
    iMac i5 2.7GHz, 16GB memory, OS 10.10.5
    Got your system install discs? pop the disc in and reboot holding down 'C' and see if you can get it to start. Do not commence Install, but go to Utilities > Disk Utility > Repair Disk and see what is reported.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  7. #7
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Hi guys, thanks for the response

    I took it to the Genius today and he suggested the same thing. I have my stuff backed up and have the original Tiger discs. Then I can update to Leopard from there, however.....

    I've put Disc 1 in and powered down. Restarted holding down C and nothing happens. Same blue screen and spinning wheel. I can't even get to start of the install. I've used an external LaCie drive and the iMacs built in drive!!!

    Totally bewildered!!!!!!!

    I'm inserting Disc 1

  8. #8
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    I have an ibook, is there anything I could do with this to get the install disc to load?

  9. #9
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Great. The disc is stuck in the Mac now....

  10. #10
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Ok this is where I'm at....

    Got the iMac in TDM with the FireWire Symbol floating round the screen.
    On my iBook I can see my iMac's HD
    I've inserted the Tiger Disc 1 into the iBook and it's showing up
    I clicked to Install but it tried installing it onto the iBook which it can't cos it's running Leopard.
    Where am I going wrong?

    I need some Valium. Help

  11. #11
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Help! iMac Stuck on Start-up
    Please help, I think I've tried everything.

    Yesterday my iMac G5 PPC running Leopard 10.5 and without any previous problems decided to just stay stuck on the blue screen with the spinning wheel.

    Today I took it to an apple Genius today he advised me to re-install Tiger and they (very kindly) sending me the Leopard upgrade for 18.00.

    I've just inserted the original Tiger Disc 1 and holding down C but nothing happens, same blue screen and spinning wheel. I tried using my LaCie external drive to get it to recognise the disc but same blue screen.

    Next I put the iMac in Target Disc Mode connected by FireWire to my iBook G4 PPC. My iMac HD shows up so it's still there.

    Just to check the disc I connected the external drive to the iBook and the Tiger disc shows on the desktop so it's not the disc.

    I tried to boot the Tiger disc in TDM from iBook but no joy and I don't know how to do this or even if it's possible.

    Need some Valium or has anyone got a clue how the **** I can get Tiger back on my iMac so I can then upgrade to Leopard when Apple send it?

    I've reset Pram etc and still no joy. I have my stuff backed up with Time Machine so a clean install is cool. But how?

  12. #12
    Help! iMac Stuck on Start-up
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,271
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    Just an educated guess here.... but it sounds like the hard drive in your G5 has seen better days. Might be time to swap it out for a new one. Shouldn't be that difficult to do on a G5.

    Edit: And please do not start a new thread. Let's continue with the original, OK? Threads have been merged.

  13. #13
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Ok sorry for starting a new thread just wanted the whole story in one post.

    The HD in the iMac is perfectly fine. I had a new one fitted 6 months ago. The Genius at Apple confirmed this today.

  14. #14
    Help! iMac Stuck on Start-up
    TrollyMcTrolls's Avatar
    Member Since
    Nov 15, 2011
    Posts
    6
    If it is a possible for you, you may need to format your harddrive.

    Insert it into another computer, run a format.

    Start fresh. Install your selected Operating system and your symptoms should disappear.


    Out of curiosity, could you post what error messages/number you're receiving in the blue screen?


    All the best,


    Trolly Mc Trolls

  15. #15
    Help! iMac Stuck on Start-up

    Member Since
    May 02, 2007
    Posts
    110
    Update...

    I don't get any messages just blue screen and spinning wheel.

    I managed to get Tiger to start loading and it goes through all the usual but when I get to the point where I restart and insert 2nd disc I just get the blue screen and wheel again.

    I powered down and up again holding option key and did Apple Harware Test which took around 45 minutes. Results...

    Airport: Passed
    Logic Board: Passed
    Mass Storage: Passed
    Memory: Passed
    Modem: Device Found
    Video Ram: Passed

    Clicked on Restart again and guess what......?

    BLUE SCREEN & SPINNING WHEEL!!!!!

    I don't even think a technician at Apple could do more to sort it out!

    I'm at a dead end. Any ideas?

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