Apple G4 manual

Take Apart	Processor Module, Power Mac G4 (QuickSilvers) - 31
	±Warning: Double-check
	that the computer is turned
	off before performing this
	procedure. The screw in the
	bottom left circle of the
	illustration conducts 12 V
	and could spark if grounded
	while the computer is on.
	4. Remove the four
	mounting screws.