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HP WMT-LX Manual 5
2. HARDWARE SETUP
2.2 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
128MB RDRAM
128MB 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.
+001-006 WMT_01.p65 3/22/01, 4:28 PM5