Desktop Boards
Intel® Desktop Board D915PLWD
System Memory

System memory features
The board has two DIMM sockets and support the following memory features:

  • 2.5 V (only) DDR 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.
  • 2 GB maximum total system memory.
  • Minimum total system memory: 128 MB.
  • Non-ECC DIMMs.
  • Serial Presence Detect.
  • DDR 400 MHz and DDR 333 MHz SDRAM DIMMs.

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.

Supported system bus frequency and memory speed combinations

To use this type of DIMM... The processor's system bus frequency must be...
DDR 400 800 MHz
DDR 333 (Note) 800 or 533 MHz

When using an 800 MHz system bus frequency processor, DDR 333 memory is clocked at 320 MHz. This minimizes system latencies to optimize system throughput.

Supported DIMM configurations

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 SS 1 Gbit 128 M x 8/empty 8

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).

Updated: June 3, 2005

This applies to:

Intel® Desktop Board D915PLWD

Solution ID: CS-026982
Last Modified: 10-Oct-2014
Date Created: 12-Jun-2007
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