My girlfriend iBook won't startup. The specifications of the problem are: When powerbutton is pressed, it seems to start up, but makes a full system shutdown noise after about 1 second. This happens when the power adapter is not connected. When the power adapter is connected, I don't even need to press the powerbutton for it to make a spinning fan noise. And it won't startup either. We already tried resetting the ram and power unit, but nothing helps. Does anyone know how to help us out?
Have you tried removing the main battery and only having the a/c power hooked up to it and seeing if that helps?