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Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware information
2.4 System memory
2.4.12.4.1
2.4.12.4.1
2.4.1
OverviewOverview
OverviewOverview
Overview
The motherboard comes with four 240-pin 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 following figure illustrates the location of the sockets:
2.4.22.4.2
2.4.22.4.2
2.4.2
Memory ConfigurationsMemory Configurations
Memory ConfigurationsMemory Configurations
Memory Configurations
You may install 256 MB, 512 MB and 1 GB unbuffered non-ECC DDR2 DIMMs
into the DIMM sockets using the memory configurations in this section.
•
For dual-channel configuration, the total size of memory module(s)
installed per channel must be the same for better performance
(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 DDR2-533 Qualified Vendors
List on the next page for details.
• Due to chipset resource allocation, the system may detect less than
4 GB of system memory when you installed four 1 GB DDR2 memory
modules.
• Due to chipset limitation, DIMM modules with 128 Mb memory chips
or double-sided x16 memory chips are not supported in this
motherboard.
ChannelChannel
ChannelChannel
Channel
Sockets Sockets
Sockets Sockets
Sockets
Channel A DIMM_A1 and DIMM_A1
Channel B DIMM_B1 and DIMM_B2
P5GD2
R
P5GD2 184-Pin DDR DIMM sockets
DIMM_A1
DIMM_A2
DIMM_B1
DIMM_B2
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