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Intel® Desktop Board D955XCS
System Memory


Updated: November 30, 2006


System Memory Features 
The board has four DIMM sockets and supports the following memory features:

  • 1.8 V and 1.9 V DDR2 SDRAM DIMMs
  • Unbuffered, single-sided or double-sided DIMMs with the following restriction: Double-sided DIMMs with x16 organization are not supported. 
  • 8 GB maximum total system memory
  • Minimum total system memory: 128 MB
  • ECC DIMMs and non-ECC DIMMs
  • Serial Presence Detect
  • DDR2 667 and 533 MHz SDRAM DIMMs

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.


Supported DIMM Configurations
The following table lists the supported DIMM configurations.

DIMM Capacity Configuration (Note 1) SDRAM Density SDRAM Organization Front-side/Back-side Number of SDRAM Devices (Note 2)
128 MB SS 256 Mbit 16 M x 16/empty 4 [5]
256 MB SS 256 Mbit 32 M x 8/empty 8 [9]
256 MB SS 512 Mbit 32 M x 16/empty 4 [5]
512 MB DS 256 Mbit 32 M x 8/32 M x 8 16 [18]
512 MB SS 512 Mbit 64 M x 8/empty 8 [9]
512 MB SS 1 Gbit 64 M x 16/empty 4 [5]
1024 MB DS 512 Mbit 64 M x 8/64 M x 8 16 [18]
1024 MB SS 1 Gbit 128 M x 8/empty 8 [9]
2048 MB DS 1 Gbit 128 M x 8/128 M x 8 16 [18]


Notes: 

  1. 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).
  2. In the fifth column, the number in brackets specifies the number of SDRAM devices on an ECC DIMM. 

Tested Memory

Vendor Self Tested Memory
Intel supplies the memory vendors that participate in this program with a common memory test plan to use as a basic checkout of the memory stability. Memory listed here was either tested by the memory vendor or by Intel using this test plan. These part numbers may not be readily available throughout the product life cycle.

The table below lists parts which passed testing conducted using Intel's Self Test program for Intel® Desktop Board D955XCS. For a complete explanation of the self test see the Desktop Board Component Functional Testing Levels page.

Module Supplier
Module Part Number		 Module Size
(MB)		 Module Speed
(MHz)		 Latency
CL-tRCD-tRP		 ECC or
Non-ECC?		 DIMM
Organization		 Module
Date Code		 Component Used
Comp Part Number
Micron
MT16HTF12864AY-667B3		 1024 MB 667 5-5-5 Non-ECC DSx8 0528 Micron
MT47H64M8CB
Micron
MT16HTF12864AY-667D4		 1024 MB 667 5-5-5 Non-ECC DSx8 0602 Micron
MT47H64M8B6
Micron
MT16HTF6464AY-667B4		 512 MB 667 5-5-5 Non-ECC DSx8 0515 Micron
MT47H32M8BP
Micron
MT8HTF6464AY-667B3		 512 MB 667 5-5-5 Non-ECC SSx8 0527 Micron
MT47H64M8CB
Micron
MT8HTF6464AY-667B8		 512 MB 667 5-5-5 Non-ECC SSx8 0529 Micron
MT47H64M8CB
Micron
MT8HTF6464AY-667B3		 512 MB 667 5-5-5 Non-ECC SSx8 0542 Micron
MT47H64M8CB
Micron
MT8HTF6464AY-667D7		 512 MB 667 5-5-5 Non-ECC SSx8 0601 Micron
MT47H64M8B6
Micron
MT8HTF3264AY-667B5		 256 MB 667 5-5-5 Non-ECC SSx8 0530 Micron
MT47H32M8BP
Micron
MT4HTF3264AY-667B2		 256 MB 667 5-5-5 Non-ECC SSx16 0527 Micron
MT47H32M16CC
Micron
MT8HTF3264AY-667B6		 256 MB 667 5-5-5 Non-ECC SSx8 0515 Micron
MT47H32M8PB
Samsung
M378T2953CZ3-CE6		 1 GB 667 5-5-5 Non-ECC DSx8 0542 Samsung
K4T51083QC-ZCE6
Samsung
M378T6553CZ3-CE6		 512 MB 667 5-5-5 Non-ECC SSx8 0535 Samsung
K4T51083QC-ZCE6
Samsung
M378T3354CZ3-CE6		 256 MB 667 5-5-5 Non-ECC SSx16 0543 Samsung
K4T51163QC-ZCE6
Micron
MT16HTF12864AY-53ED4		 1024 MB 533 4-4-4 Non-ECC DSx8 0611 Micron
MT47H64M8B6
Micron
MT16HTF12864AY-53EB1		 1024 MB 533 4-4-4 Non-ECC DSx8 0524 Micron
MT47H64M8CB
Micron
MT8HTF6464AY-53ED7		 512 MB 533 4-4-4 Non-ECC SSx8 0612 Micron
MT47H64M8B6
Micron
MT8HTF6464AY-53EB3		 512 MB 533 4-4-4 Non-ECC SSx8 0522 Micron
MT47H64M8CB
Micron
MT8HTF6464AY-53EB8		 512 MB 533 4-4-4 Non-ECC SSx8 0519 Micron
MT47H64M8CB
Micron
MT16HTF6464AY-53EB2		 512 MB 533 4-4-4 Non-ECC DSx8 0506 Micron
MT47H32M8BP
Micron
MT4HTF3264AY-53EB2		 256 MB 533 4-4-4 Non-ECC SSx16 0527 Micron
MT47H32M16CC
Micron
MT8HTF3264AY-53EB3		 256 MB 533 4-4-4 Non-ECC SSx8 0535 Micron
MT47H32M8BP
Micron
MT4HTF1664AY-53EB1		 128 MB 533 4-4-4 Non-ECC SSx16 0551 Micron
MT47H16M16BG
Samsung
M378T2953CZ3-CD5		 1 GB 533 4-4-4 Non-ECC DSx8 0537 Samsung
K4T51083QC-ZCD5
Samsung
M378T6553CZ3-CD5		 512 MB 533 4-4-4 Non-ECC SSx8 0541 Samsung
K4T51083QC-ZCD5
Samsung
M378T3354CZ3-CD5		 256 MB 533 4-4-4 Non-ECC SSx16 0541 Samsung
K4T51163QC-ZCD5

This applies to:
Intel® Desktop Board D955XCS

End of Interactive Support Announcement
These products are no longer being manufactured by Intel. Additionally, Intel no longer provides interactive support for these products via telephone or e-mail, nor will Intel provide any future software updates to support new operating systems or improve compatibility with third party devices and software products.

THESE DOCUMENTS ARE PROVIDED FOR HISTORICAL REFERENCE PURPOSES ONLY AND ARE SUBJECT TO THE TERMS SET FORTH IN THE "LEGAL INFORMATION" LINK BELOW.For information on currently available Intel products, please see www.intel.com and/or developer.intel.com
Solution ID: CS-026570
Date Created: 20-May-2007
Last Modified: 22-May-2007
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