System Memory; Supported Memory Configurations - Intel D915GUX Specification

Intel Desktop Board D915GUX/D915GHA Technical Product Specification

1.5 System Memory

The boards have four DIMM sockets and support the following memory features:
•
1.8 V (only) 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. Refer to Section 2.2.1 on page 49 for information on
the total amount of addressable memory.
•
Minimum total system memory: 128 MB
•
Non-ECC DIMMs
•
Serial Presence Detect
•
DDR2 533 MHz or 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.
Table 4 lists the supported DIMM configurations.
Table 4.

Supported Memory Configurations

DIMM
Capacity Configuration
128 MB SS
256 MB SS
256 MB SS
512 MB DS
512 MB SS
512 MB SS
1024 MB DS
1024 MB SS
2048 MB DS
Note: In the second column, "DS" refers to double-sided memory modules (containing two rows of SDRAM) and "SS"
refers to single-sided memory modules (containing one row of SDRAM).
INTEGRATOR'S 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. Refer to Section 2.2.1, on page 49 for
additional information on available memory.
18
SDRAM SDRAM Organization
Density Front-side/Back-side
256 Mbit 16 M x 16/empty
256 Mbit 32 M x 8/empty
512 Mbit 32 M x 16/empty
256 Mbit 32 M x 8/32 M x 8
512 Mbit 64 M x 8/empty
1 Gbit 64 M x 16/empty
512 Mbit 64 M x 8/64 M x 8
1 Gbit 128 M x 8/empty
1 Gbit 128 M x 8/128 M x 8
Number of SDRAM
Devices
4
8
4
16
8
4
16
8
16