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  1. #1

    Member Since
    Jan 01, 2011
    iMac G5 won't turn on anymore
    Hello all. First time here and hoping someone can give me some insight.
    The other day I was printing some images from my iMac G5 when it just shut down completely. After multiple attempts to turn it back on, nothing. I mean it's not making a peep. I tried plugging it into various sockets around the house but that didn't work either.
    Is this what happens when a hard drive packs it in?

    Thanks in advanced!

  2. #2

    roflitskyle's Avatar
    Member Since
    Dec 23, 2010
    United States
    MacBook Unibody 13" 150 GB HDD
    Try booting from the grey install disks that came with your iMac. Hold down the c key when booting. Then if it boots run Disk Utility. Good luck! Post the results.

  3. #3

    Buzzard2010's Avatar
    Member Since
    Oct 22, 2010
    Bretforton, Worcestershire
    MacBook Pro 15" 2014, 2.2GHz i7, 16GB RAM, 250GB SSD, OSX 10.9.5 - iPhone 5s 16gb
    Welcome to Mac-Forums speedform

    Sounds not that the HDD has failed but the power supply unit inside.
    This article on the Apple site should help you troubleshoot your problem:
    iMac G5: Troubleshooting when your computer won't turn on

    Hope this helps

    - Simon

    If you have been helped, don't forget to use the Reputation system at the top right of their post.
    May 2011
    Nominated: March 2011 & April 2011

  4. #4

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac, i7 4GHz, 32GB memory, 1TB PCI-e storgae StOS X.13.3
    G'day and welcome to the forums.

    Another vote for dead power supply and the bad news it my not be worth the cost of repairing. Apple did have a replacement scheme for defective iMac G5 power supplies as it is a very common problem, however this finished two years ago. Have a read of this link and see if there is any hope:-
    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!

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