I'm trying to get my hands on either a copy of the motherboard manual or some sort of information relating to a G4 Motherboard, made by Apple Computer Ince, model 820-1276-a
There seems to be some major power issues that I'm trying to resolve. With all components and power plugged in normally, the power button will light up but no fans, booting, etc.
If I unplug the one of the two main power cables going into the Motherboard, labeled P4, I can get a fan to turn on atleast and one of the led's on the motherboard will light up. The LED that lights up is labeled D55 and illuminates a solid red.
Why is it I can get some activity out of the machine wth only partial power? What does the solid red coming from D55 mean? These are questions that I'd love to have the manual for. Any inforation would be greatly appreciated.