So I just got two PowerBook G4 Titaniums from a guy at work. I wanted to get them working to mess with. I guess he has not used them for a while. The batteries are dead I guess. If i plug in the AC to each laptop I can't get them to power on. I tried resetting the PMU by hitting the reset button on both models and then tried hitting the power button. Nothing happened. I really have no way of telling if the power supply is working, or if it is the correct one. Anyone have any suggestions what I could try or look for?