Asus P5LD2-DH, User Manual

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ASUS P5LD2-FM/DH/VP 1-15
1.6 System memory
1.6.1 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 figure illustrates the location of the DDR2 DIMM sockets:
1.6.2 Memory configurations
You may install 256 MB, 512 MB and 1 GB unbuffered non-ECC DDR2 DIMMs into the
DIMM sockets.
• For dual-channel configuration, the total size of memory module(s) installed per
channel must be the same (D DIMM_A2 = D 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 on the next page for details.
• Due to chipset resource allocation, the system may detect less than 4 GB system
memory when you installed four 1 GB DDR2 memory modules.
• This motherboard does not support memory modules made up of 128 Mb chips
or double sided x16 memory modules.
Channel Sockets
Channel A DIMM_A1 and DIMM_B1
Channel B DIMM_A2 and DIMM_B2
P5LD2-FM/DH/VP 240-pin DDR2 DIMM Sockets
DI
M
M
_A
2
DI
M
M
_A
1
DI
M
M
_B
2
DI
M
M
_B
1
®
P
5
L
D
2
-F
M
/D
H
/V
P