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1-18 Chapter 1: Product introduction
1.7 System memory
1.7.1 Overview
The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory
Modules (DIMM) sockets.
A DDR2 module has the same physical dimensions as a DDR DIMM but has a
240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched
differently to prevent installation on a DDR DIMM socket.
The gure illustrates the location of the DDR2 DIMM sockets:
1.7.2 Memory congurations
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2
DIMMs into the DIMM sockets.
R
P5B-VM DO
240-pin DDR2 DIMM socket
P5B-VM DO
128 Pins 112 Pins
DIMM_A1
DIMM_A2
DIMM_B1
DIMM_B2
Install at least a memory module in DIMM_A1 or DIMM_A2 slot to support the
Intel
®
Quiet System Technology and for optimum performance. Otherwise,
system will halt.
Channel Sockets
Channel A DIMM_A1 and DIMM_A2
Channel B DIMM_B1 and DIMM_B2