Apple WS 9650 manual

Basics	Dual In-Line Memory Modules (DIMMs) - 15
	Important: The Power Macintosh 8600 Series computers
	also use VRAM DIMMs (112-pin 70 ns or faster) instead of
	VRAM SIMMs. The VRAM SIMMs used in earlier Power
	Macintosh models are not compatible.
	Note: While the Power Macintosh 8600 and 9600 Series
	and Workgroup Server 9650 computers ship with EDO
	DIMMs, the computers’ memory controller treats EDO
	DIMMs like fast-paged (FPM) DIMMs. You can therefore
	use either EDO or fast-paged DIMMs in these computers;
	however, EDO DIMMs will run in FPM mode.