The Boxed Intel® Core™2 Extreme Processors X6800 and QX6700 ship with a FCLGA4-O fan-heatsink with an Intel part number of D59961-001. Some things to know about this fan-heatsink are the following:

This ATX thermal solution was designed for and should only be used with desktop Intel® Core™2 Extreme Processors.

• It is not backward compatible with any Intel® Pentium® 4, Intel® Pentium® D, or Intel® Core™2 Processor family fan-heatsinks and should not be used with these processors.

• You should also not use the older Intel Pentium 4, Intel Pentium D, or Boxed Intel® Core™2 Duo Processor fan-heatsinks on Intel® Core™2 Extreme Processors due to thermal risk.

This fan-heatsink is RoHS compliant.

Related Topics:
Installation and integration of LGA775 processors
How to apply Thermal Interface Material?
Intel® Desktop Processor resources

This applies to:

Intel® Core™2 Extreme Processor