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2.5
Installing a DIMM
The system motherboard comes with two Double Data Rate 2 (DDR2) Dual
Inline Memory Module (DIMM) sockets.
The following figure illustrates the location of the sockets:
240-pin DDR2 DIMM Sockets
Channel
Channel A
Channel B
2.5.1
Memory configurations
You may install up to 4 GB system memory using 256 MB, 512 MB, 1 GB,
and 2 GB unbuffered non-ECC DDR2 DIMMs.
•
•
•
•
2-8
M2N-NM
R
DIMM_A1 and DIMM_A2
DIMM_B1 and DIMM_B2
For dual-channel configuration, the total size of memory module(s)
installed per channel must be the same (DIMM_A1 + DIMM_A2 =
DIMM_B1 + DIMM_B2).
Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules
from the same vendor. Refer to the DDR2 Qualified Vendors List for
details.
Some odd version DDR2-667 DIMMs may not match Intel On-Die-
Temination (0DT) requirement and may downgrade to run at DDR2-533. If
this happen, contact your retailer for the ODT value.
This motherboard does not support memory modules made up of
128 Mb chips.
Sockets
Chapter 2: Basic installation
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