Supported Processors for Intel® Desktop Board D955XCS

Documentation

Compatibility

000007166

10/01/2019

The Intel® Desktop Board D955XCS supports one Intel® processor in an LGA775 socket. See the table below for a complete list of supported processors.

Processors not specifically listed by type and rated speed can have requirements unsupported by the design of the desktop board. Use of unsupported processors can result in improper operation, damage to the desktop board or processor, or reduced product life.

The sSpec number is also known as specification number. This five-character string (for example: SL36W or XL2XL) is printed on the processor and used to identify the processor. You can find this number on the processor or on the label that came with your boxed processor.

Choose your processor family:

Intel Pentium D Processor

Processor Number Processor Speed System Bus Frequency L2 Cache Size Thermal Module Type1 BIOS Version
960 (sSpec SL9AP & SL9K7 only) 3.60 GHz 800 MHz 2x2 MB ATX only 2043 or greater
950
(sSpec SL94P & SL9K8 only)		 3.40 GHz 800 MHz 2x2 MB ATX or BTX 2043 or greater
945 (sSpec SL9QQ only) 3.40 GHz 800 MHz 4 MB ATX only 2043 or greater
940 3.20 GHz 800 MHz 2x2 MB ATX or BTX 2015 or greater
930 3 GHz 800 MHz 2x2 MB ATX or BTX 2015 or greater
925 (sSpec SL9KA only) 3 GHz 800 MHz 4 MB ATX only 2043 or greater
920 2.80 GHz 800 MHz 2x2 MB ATX or BTX 2015 or greater
915 2.80 GHz 800 MHz 4 MB ATX only 2036 or greater
840 3.20 GHz 800 MHz 2x1 MB ATX or BTX 2015 or greater
830 3 GHz 800 MHz 2x1 MB ATX or BTX 2015 or greater
820 2.80 GHz 800 MHz 2x1 MB ATX or BTX 2015 or greater

 

Intel Pentium Extreme Edition Processor

Processor Number Processor Speed System Bus Frequency L2 Cache Size Thermal Module Type1 BIOS Version
965 3.73 GHz 1066 MHz 2x2 MB ATX only 2036 or greater
955 3.46 GHz 1066 MHz 2x2 MB ATX only 2015 or greater
840 3.20 GHz 800 MHz 2x1 MB ATX only 1784 or greater

 

Intel Pentium 4 Extreme Edition Processor

Processor Speed System Bus Frequency L2 Cache Size Thermal Module Type1 BIOS Version
3.73 GHz 800 MHz 1 MB ATX only 1784 or greater

 

Intel Pentium 4 Processor

Processor Number Processor Speed System Bus Frequency L2 Cache Size Thermal Module Type1 BIOS Version
670 3.80 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
661 3.60 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
660 3.60 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
651 3.40 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
650 3.40 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
641 3.20 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
640 3.20 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
631 3 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
630 3 GHz 800 MHz 2 MB ATX or BTX 2015 or greater
620 2.80 GHz 800 MHz 2 MB ATX only 1784 or greater
571 3.80 GHz 800 MHz 1 MB ATX only 1784 or greater
570J 3.80 GHz 800 MHz 1 MB ATX only 1784 or greater
561 3.60 GHz 800 MHz 1 MB ATX or BTX 1784 or greater
560J 3.60 GHz 800 MHz 1 MB ATX or BTX 1784 or greater
560 3.60 GHz 800 MHz 1 MB ATX only 1784 or greater
551 3.40 GHz 800 MHz 1 MB ATX or BTX 2015 or greater
550J 3.40 GHz 800 MHz 1 MB ATX or BTX 1784 or greater
550 3.40 GHz 800 MHz 1 MB ATX only 1784 or greater
541 3.20 GHz 800 MHz 1 MB ATX only 2015 or greater
540J 3.20 GHz 800 MHz 1 MB ATX only 1784 or greater
540 3.20 GHz 800 MHz 1 MB ATX only 1784 or greater
531 3.00 GHz 800 MHz 1 MB ATX or BTX 2015 or greater
530J 3 GHz 800 MHz 1 MB ATX or BTX 1784 or greater
530 3 GHz 800 MHz 1 MB ATX only 1784 or greater
521 2.80 GHz 800 MHz 1 MB ATX only 2015 or greater
520 2.80 GHz 800 MHz 1 MB ATX only 1784 or greater

 

1 Thermal Module Type: Intel boxed processors can include either a BTX thermal module or an ATX thermal module. This board requires a BTX thermal module. If a processor listed includes only the ATX thermal module, a BTX thermal module must be sourced separately.

Caution
 Use of unsupported processors may result in improper operation, damage to the desktop board or processor, or reduced product life. Except as provided in Intel's Terms and conditions of Sale for such products, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF THE INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.