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G4 just replaced power supply , it powers up , but the screen is not on and the mouse and keyboard aren't on either. A few times the computer came on with screen working but then it froze up, can't do any type of reset cause of keyboard not working. Help!

697 Views 20 Replies Latest reply: May 20, 2012 7:54 PM by japamac RSS
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Damien6 Calculating status...
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May 17, 2012 6:17 AM

G4 just replaced power supply , it powers up , but the screen is not on and the mouse and keyboard aren't on either. A few times the computer came on with screen working but then it froze up, can't do any type of reset cause of keyboard not working. Help! Pressed pmu button already,  nothing ,..  Ppc g4 Mac

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