On 28-12-2005 21:06, Larry Parsons, hi8vidcam at hotmail.com, wrote: > I have a dead, dual 450 G4. It will not power up. I pushed all reset > buttons,..changed power cords, outlets even the power supply with one that I > know is good and still no sound of life. How do I determine whether the > peoblem is the power board/button,...logic board,...processors,...or ? Did you try a fresh PRAM-battery?? Jo Hissel