Specifications
2-8 Chapter 2: Basic installation
2.5 Installing a DIMM
The motherboard comes with two 240-pin Double Data Rate 2 (DDR2) Dual
Inline Memory Module (DIMM) sockets.
The following gure illustrates the location of the sockets:
Recommended memory congurations
2.5.1 Memory congurations
You may install 256 MB, 512 MB, and 1 GB unbuffered/non-ECC/ECC DDR2
DIMMs into the DIMM sockets using the memory congurations in this
section.
•
Installing DDR DIMMs other than the recommended congurations
may cause memory sizing error or system boot failure. Use any of
the recommended congurations on the next page.
•
Install only identical (the same type and size) DDR DIMM pairs for
each channel.
•
Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules
from the same vendor.
• Due to chipset limitation, this motherboard does not support DIMM
modules with less than or equal to 128 Mb memory chips.
R
2
40-
p
in DDR2 DIMM Sockets
112 Pins128 Pins
MM
_
B2
M
M_A1
MM_A2
MM
_
B1
CPU Mode Sockets
DIMM_A1 (black) DIMM_B1 (black)
Single-core Single-channel — Populated
Dual-channel Populated Populated
Dual-core Single-channel Populated —
Single-channel — Populated
Dual-channel Populated Populated