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Intel® Desktop Board D975XBX2
Supported processors

The Intel® Desktop Board D975XBX2 supports a single Intel processor in an LGA775 socket. See the link and the tables below for a complete list of supported processors.

The Intel Desktop Board D975XBX2 supports the following processor families:

  • Intel® Core™2 Extreme Processor
  • Intel® Core™2 Quad Processor
  • Intel® Core™2 Duo Processor
  • Intel® Pentium® Dual-Core Processor
  • Intel® Pentium® Extreme Edition Processor
  • Intel® Pentium® 4 Extreme Edition Processor
  • Intel® Pentium® D Processor
  • Intel® Pentium® 4 Processor


Refer to the Compatibility Tool for the latest processor compatibility information for the following processors:
  • Intel Core2 Extreme Processor
  • Intel Core2 Quad Processor
  • Intel Core2 Duo Processor
  • Intel Pentium Dual-Core Processor


Compatibility for other processors:

Intel Pentium Extreme Edition Processor
Processor Number Processor Speed System Bus Frequency L2 Cache Size BIOS Version
965 3.73 GHz 1066 MHz 2x2 MB 2212 or greater
955 3.46 GHz 1066 MHz 2x2 MB 2212 or greater
840 3.20 GHz 800 MHz 2x1 MB 2212 or greater

Intel Pentium 4 Extreme Edition Processor
Processor Speed System Bus Frequency L2 Cache Size BIOS Version
3.73 GHz 1066 MHz 2 MB 2212 or greater

Intel Pentium D Processor
Processor Number Processor Speed System Bus Frequency L2 Cache Size BIOS Version
960 3.60 GHz 800 MHz 2x2 MB 2212 or greater
950 3.40 GHz 800 MHz 2x2 MB 2212 or greater
945 3.40 GHz 800 MHz 4MB 2212 or greater
940 3.20 GHz 800 MHz 2x2 MB 2212 or greater
935 3.20 GHz 800 MHz 2x2 MB 2212 or greater
930 3 GHz 800 MHz 2x2 MB 2212 or greater
920 2.80 GHz 800 MHz 2x2 MB 2212 or greater
915 (sSpec SL9KB only) 2.80 GHz 800 MHz 4MB 2212 or greater
840 3.20 GHz 800 MHz 2x1 MB 2212 or greater
830 3 GHz 800 MHz 2x1 MB 2212 or greater
820 2.80 GHz 800 MHz 2x1 MB 2212 or greater

Intel Pentium 4 Processor
Processor Number Processor Speed System Bus Frequency L2 Cache Size BIOS Version
672 3.80 GHz 800 MHz 2 MB 2212 or greater
670 3.80 GHz 800 MHz 2 MB 2212 or greater
662 3.60 GHz 800 MHz 2 MB 2212 or greater
661 3.60 GHz 800 MHz 2 MB 2212 or greater
660 3.60 GHz 800 MHz 2 MB 2212 or greater
651 3.40 GHz 800 MHz 2 MB 2212 or greater
650 3.40 GHz 800 MHz 2 MB 2212 or greater
641 3.20 GHz 800 MHz 2 MB 2212 or greater
640 3.20 GHz 800 MHz 2 MB 2212 or greater
631 3 GHz 800 MHz 2 MB 2212 or greater
630 3 GHz 800 MHz 2 MB 2212 or greater
571 3.80 GHz 800 MHz 1 MB 2212 or greater
570J 3.80 GHz 800 MHz 1 MB 2212 or greater
561 3.60 GHz 800 MHz 1 MB 2212 or greater
560J 3.60 GHz 800 MHz 1 MB 2212 or greater
560 3.60 GHz 800 MHz 1 MB 2212 or greater
551 3.40 GHz 800 MHz 1 MB 2212 or greater
550J 3.40 GHz 800 MHz 1 MB 2212 or greater
550 3.40 GHz 800 MHz 1 MB 2212 or greater
540J 3.20 GHz 800 MHz 1 MB 2212 or greater
540 3.20 GHz 800 MHz 1 MB 2212 or greater
531 3 GHz 800 MHz 1 MB 2212 or greater
530J 3 GHz 800 MHz 1 MB 2212 or greater
530 3 GHz 800 MHz 1 MB 2212 or greater
521 2.80 GHz 800 MHz 1 MB 2212 or greater
520J 2.80 GHz 800 MHz 1 MB 2212 or greater
520 2.80 GHz 800 MHz 1 MB 2212 or greater


Find processor Product Codes:


The sSpec number is also known as specification number. It is a five character string (SL36W, XL2XL, etc.) that is printed on the processor, and used to identify the processor. You can find this number by looking at the markings on the processor or on the label that came with your boxed processor.

Warning: Processors not specifically listed by type and rated speed may have requirements that are not supported by the desktop board's design. 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.

This applies to:
Intel® Desktop Board D975XBX2

Solution ID: CS-026614
Date Created: 24-May-2007
Last Modified: 26-Oct-2007
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