I tried each method, on different occasions. Same results.
It could be some kind of corrupt PMU ROM on the board, but I doubt it, it probably just wouldn't start at all.
Even though I just posted in another thread about MDD G4s that I have had no problems with the power supply, this seems most likely to be the issue. Also when I disconnect and reconnect the power cord, I can hear a slight electrical crackle. Maybe a problem with ground loop or static electricity? It probably could kill the logic board eventually, but I will hopefully adapt an ATX PSU before it fails...
It could be some kind of corrupt PMU ROM on the board, but I doubt it, it probably just wouldn't start at all.
Even though I just posted in another thread about MDD G4s that I have had no problems with the power supply, this seems most likely to be the issue. Also when I disconnect and reconnect the power cord, I can hear a slight electrical crackle. Maybe a problem with ground loop or static electricity? It probably could kill the logic board eventually, but I will hopefully adapt an ATX PSU before it fails...