Asus 850 ATX 3.5System Memory, NOTE:, IMPORTANT, When, C-RIMMs, use configuration a, NOTE: No hardware or BIOS setup is required after adding or removing memory

3.HARDWARE SETUP

3.5System Memory

NOTE: No hardware or BIOS setup is required after adding or removing memory.

This motherboard has four 184-pin Rambus Inline Memory Modules (RIMM) sockets. These sockets support 64Mbit, 128Mbit, and 256Mbit Direct RDRAM technologies.

Location	Memory Module		Subtotal
RIMMA1	RDRAM	x 1
(Rows 0&1)	C-RIMM (use when socket will not be populated)
RIMMA2	RDRAM	x 1
(Rows 2&3)	C-RIMM (use when socket will not be populated)
RIMMB1	RDRAM	x 1
(Rows 4&5)	C-RIMM (use when socket will not be populated)
RIMMB2	RDRAM	x 1
(Rows 6&7)	C-RIMM (use when socket will not be populated)
	TOTAL SYSTEM MEMORY	=
	(2GB Max)

IMPORTANT

1.The memory configuration of channel A (RIMMA1 and RIMMA2) and channel B (RIMMB1 and RIMMB2) must be identical (see below).

2.C-RIMMs (Continuity RIMM) must be used to complete the sockets that are not populated by RDRAMs. A C-RIMM is necessary to avoid breaking the signal lines, which are a serial connection in a Rambus interface, such as used in this motherboard. This assures the electrical integrity of a Rambus interface.

3.When C-RIMMs are required, it is recommended that they be inserted into RIMMA2 and RIMMB2.

a.

	C-RIMM	RIMMB2	NOTE: When using only two memory
		RIMMB1
	128MB RDRAM		modules, it is recommended that you
		RIMMA2
	C-RIMM
			use configuration a.
		RIMMA1
	128MB RDRAM
b.
	128MB RDRAM	RIMMB2
		RIMMB1
	C-RIMM
		RIMMA2
	128MB RDRAM
		RIMMA1
	C-RIMM
c.
	128MB RDRAM	RIMMB2
		RIMMB1
	128MB RDRAM
		RIMMA2
	128MB RDRAM
		RIMMA1
	128MB RDRAM

.3 SETUPH/W

System Memory

ASUS P4T-EM User’s Manual 21