I found a BW G3 powermac somewhere in a dark corner of the room. When I power it up, I hear the fan and the harddisk running but the screen stays black. What i tried is removing the PRAM battery and putting it back in, without result. I also pressed the button on the logic board to reset the PRAM. Inserting the OS 9.2 disk and pressing the c button didn't help me either. I'm out of ideas... UPDATE I reseated the processor and he's up and running again.