iMac G5 Repair Questions?

Discussion in 'PowerPC Macs' started by rollobancher, May 11, 2009.

  1. rollobancher macrumors member

    Joined:
    Feb 26, 2004
    Location:
    Cali
    #1
    Hello Forum,

    I just received an iMac G5 17" 1.8 Ghz from a friend which I need to repair, and I got a couple of questions. First, the iMac does not turn on; when I press the power button I get no response (I know that the power cable is OK). How do I know if this issue is related to the Power Supply or the Logic Board? I have a Power Supply from a PC (I believe it is 300 - 450 W), can I try this Power Supply with the iMac to rule out the Logic Board?

    If not, what are other test that I can do to rule each piece of hardware out until I find the cause?

    Thanks in advance for the support guys and gals! ;)

    Joel

    Edit: I have noticed online that there may be a recall, anyone have any more information on this?

    http://macosx.com/forums/hardware-peripherals/37548-apple-g5-power-supply-recall.html
     
  2. Carl Abudephane, May 12, 2009
    Last edited: May 6, 2012
  3. Macky-Mac macrumors 68030

    Macky-Mac

    Joined:
    May 18, 2004
    #3
    there was an extended repair program related to the power supplies in certain G5 iMacs but it ended in december 2008 IIRC.....it was a repair program and not a "recall"......and note that your link leads to a forum posting dated in 2003!!!!
     
  4. MTI macrumors 65816

    Joined:
    Feb 17, 2009
    Location:
    Scottsdale, AZ
    #4
    Any sounds from the internal cooling fans? If not, then your likely culprit is the power supply.

    No, the iMac does not use the PC standard power supply - motherboard connectors. Unless you wanted to rewire the power supply, it's not going to happen.

    Just as with a PC, you'll need a volt/multi-meter to test for DC voltage from the power supply. If it's not putting out the DCV, then that's the first issue, which doesn't rule out a bad logic board too.
     

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