Desktop Boards
Intel® Desktop Board D848PMB
System Memory

System Memory Features

The Intel® Desktop Board D848PMB has two DIMM sockets and support the following memory features:

  • 2.6 V (only) 184-pin 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: 64 MB
  • Non-ECC DIMMs
  • Serial presence detect
  • DDR400, DDR333, and DDR266 SDRAM DIMMs

The following table lists the supported system bus frequency and memory speed combinations.

Supported system bus frequency and memory speed combinations

DIMM Required Processor System Bus Frequency
DDR400 800 MHz
DDR333(Note) 800 or 533 MHz
DDR266 800, 533, or 400 MHz

Note When using an 800 MHz system bus frequency processor, DDR333 memory is clocked at 320 MHz. This minimizes system latencies to optimize system throughput.
Note 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.

Supported DIMM configurations

DIMM Capacity Configuration DDR SDRAM Density DDR SDRAM Organization
Number of DDR SDRAM Devices
64 MB SS 64 Mbit 8 M x 8/empty 8
64 MB SS 128 Mbit 8 M x 16/empty 4
128 MB DS 64 Mbit 8 M x 8/8 M x 8 16
128 MB SS 128 Mbit 16 M x 8/empty 8
128 MB SS 256 Mbit 16 M x 16/empty 4
256 MB DS 128 Mbit 16 M x 8/16 M x 8 16
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
1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16
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).

This applies to:

Intel® Desktop Board D848PMB

Solution ID: CS-021833
Last Modified: 29-Sep-2014
Date Created: 21-Nov-2005
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