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System Memory
The boards have four DIMM sockets and support the following memory features:
• 1.8 V DDR2 SDRAM DIMMs with gold-plated contacts
• Unbuffered, single-sided or double-sided DIMMs with the following restriction:
Double-sided DIMMS with x16 organization are not supported.
• 4 GB maximum total system memory total amount of addressable memory.
• Minimum total system memory: 128 MB
• Non-ECC DIMMs
• Serial Presence Detect
• DDR2 667, DDR2 533 MHz and DDR2 400 MHz SDRAM DIMMs
NOTES
•
Remove the PCI Express x16 video card before installing or upgrading memory to avoid
interference with the memory retention mechanism.
•
To be fully compliant with all applicable DDR SDRAM memory specifications, the board
should be populated with DIMMs that support the Serial Presence Detect (SPD) data
structure. This allows the BIOS to read the SPD data and program the chipset to accurately
configure memory settings for optimum performance. If non-SPD memory is installed, the
BIOS will attempt to correctly configure the memory settings, but performance and reliability
may be impacted or the DIMMs may not function under the determined frequency.
The following table lists the supported DIMM configurations.
Table 6.
DIMM
Capacity
Configuration
SDRAM
Density
SDRAM
Organization Front-
side/Back-side
Number of
SDRAM Devices
128 MB
SS
256 Mbit
16 M x 16/empty
4
256 MB
SS
256 Mbit
32 M x 8/empty
8
256 MB
SS
512 Mbit
32 M x 16/empty
4
512 MB
DS
256 Mbit
32 M x 8/32 M x 8
16
512 MB
SS
512 Mbit
64 M x 8/empty
8
512 MB
SS
1 Gbit
64 M x 16/empty
4
1024 MB DS
512 Mbit
64 M x 8/64 M x 8
16
1024 MB SS
1 Gbit
128 M x 8/empty
8
2048 MB DS
1 Gbit
128 M x 8/128 M x 8
16
Note:
In the second column, "DS" refers to double-sided memory modules (containing two rows of DDR
SDRAM) and "SS" refers to single-sided memory modules (containing one row of DDR SDRAM).
NOTE: It is possible to install four 2048 MB (2 GB) modules for a total of 8 GB of system memory,
however, only 4 GB of address space is available.
