I am having power problems with a G4/450 MHz DP Tower. If the computer is unplugged for a little bit and then plugged back in, the computer will be completely dead (i.e. pressing the power button does nothing). After the computer is plugged in for a while (without doing anything else) then the computer works fine. I've replaced the PRAM battery and reset the PMU but the same thing happens. The computer consistently behaves like this. What else can I do? Does something need to be replaced?
Thanks.