G5 Power Mac shuts down - help please

Discussion in 'PowerPC Macs' started by Chuck350, Oct 30, 2009.

  1. macrumors newbie

    Joined:
    Oct 30, 2009
    #1
    Hello,

    I'm new to forum but sure could use some help.

    Have a newly acquired Power Mac G5 Dual 2.0ghz OSX 10.5 250gb HD & DVDRW 1mb RAM

    It powers up and functions normally until I put it to sleep manually, or via 'energy saver'. At which time the screen goes black, and the HD powers down.

    However I can't wake it up (no keyboard or mouse control)

    A few minutes later, the fans start up and increase in speed and noise ... still no control. My only resort is to use the power button to power the machine down.

    If I power it up again, it functions normally until the 'sleep' function is activated.

    Has anyone run into this before, and what was the fix?

    Thanks for your help.

    Chuck Anderson:)
     
  2. macrumors Penryn

    rdowns

    Joined:
    Jul 11, 2003
  3. macrumors 6502a

    Joined:
    Oct 21, 2009
    Location:
    Among the starlings
    #3
    I've got a similar model, and have had this problem, but only very occasionally. Do you have any peripherals connected?
     
  4. thread starter macrumors newbie

    Joined:
    Oct 30, 2009
    #4
    Only Keyboard and Mouse
     

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