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Chapter 2: Hardware setup2-10
2.4 System memory
2.4.1 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:
2.4.2 Memorycongurations
You may install 512 MB, 1 GB, and 2 GB unbuffered ECC or non-ECC
DDR2-533/667 DIMMs into the DIMM sockets.
P5BV-M/RS100-E5
240-pin DDR2 DIMM Sockets
®
P5BV-M/RS100-E5
DIMM_A2
DIMM_B1
DIMM_B2
DIMM_A1
112 Pins
128 Pins
• Always install DIMMs with the same CAS latency. For optimum
compatibility, we recommend that you obtain memory modules from the
same vendor. Refer to the DDR2 Qualied Vendors List on the ASUS web
site.
• When installing one or two DIMMs, install the DIMM(s) to the blue slots
(DIMM_A1/DIMM_B1).
• Three DDR2 DIMMs intalled into any three memory sockets will function in
single-channel mode.