G5 won't start up

Discussion in 'PowerPC Macs' started by Beliblis, Mar 15, 2012.

  1. Beliblis macrumors regular

    Dec 31, 2011

    I've got an old G5 (dual 2.0Ghz) which only powers up intermittantly. Sometimes when I press the power button, nothing happens. Sometimes it does start up fine. Once it's on, it's on and stays on.
    Wake up from sleep can be the same problem: sometimes it works, sometimes it doesnt.

    What could it be? Power supply?

    I thought about getting an old G5 from eBay for spares (for $10-20), trying my luck with a different power supply. Could I use ANY power supply from any old G5? (for example one from a single 1.6 GHz machine)? Or did the wattage change?

    I know it may not be worth all the effort. But I thought about using it as a server machine (small office setup/photography) & for printing large format prints.

    Many thanks!
  2. Hrududu macrumors 68020


    Jul 25, 2008
    Central US
    You have to get a PSU from the exact same model machine or it will not work. They used several different wattages and even different plugs on the later ones.
  3. Beliblis thread starter macrumors regular

    Dec 31, 2011
    Thanks for your help!
    LIke your avatar by the way – used to own a C64 and Amiga. Good old days :)

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