Asus 850 ATX P4T - Manual (Page 23)

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3. HARDWARE SETUP
ASUS P4T User’s Manual
System Memory 3. H/W SETUP
3.5 System 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.
IMPORTANT
1. The memory configuration of channel A (RIMMA1 and RIMMA2) and chan-
nel 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.
RIMMA1
RIMMA2
RIMMB1
RIMMB2
128MB RDRAM
128MB RDRAM
C-RIMM
C-RIMM
a.
RIMMA1
RIMMA2
RIMMB1
RIMMB2
256MB RDRAM
256MB RDRAM
128MB RDRAM
128MB RDRAM
c.
RIMMA1
RIMMA2
RIMMB1
RIMMB2
128MB RDRAM
128MB RDRAM
C-RIMM
C-RIMM
b.
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)
NOTE: When using only two memory modules,
it is recommended that you use configuration a.