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  1. #1

    Member Since
    Jan 24, 2011
    Question G5 won't power up
    My G5 quit abruptly and will not come back to life. Where do I begin troubleshooting?

    It is a 20-inch 2004-05 model, the last unit Apple produced before going to an Intel processor (if I have those particulars right).

    I apologize if this topic has been covered at length in this forum. I ran into walls trying searches that used "power" as a key term.

    Any suggestions will be much appreciated. Thanks!

  2. #2

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac i5 2.7GHz, 16GB memory, OS 10.11.1.
    G'day and welcome to the forums.

    As it sounds like an iMac G5 suggest you look at power supply replacement. This may alson help:-
    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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