Apple 9500/150, 9500/200, 9500/180MP, 9500/132 manual

Basics	Dual In-Line Memory Modules (DIMMs) - 9
	the Power Macintosh 9500 Series computers.
	Note: There is a double click seating process for installing
	DRAM DIMMs. Be sure to push the DIMMs all the way into
	the DIMM slots.