S Spec SLGZ4. This is a working pull from an upgraded computer. Has been tested and is fully functional. Requires an LGA 775 socket.
Intel Core 2 Quad Q9500 2.83Ghz Quad Core Socket LGA775 6M Cache SLGZ4
Intel Core 2 Quad Q9400 SLB6B 2.66GHz Quad-Core LGA 775 CPU Processors
Intel Core 2 Quad Q6600 SLACR 2.4GHz Quad-Core Socket LGA 775 CPU Processor
Intel Core 2 Quad Q9400 2.66Ghz/ 6M /1333GHz socket desktop CPU processor
MSI MS-7380 V1.3 750i SLI Socket 775 Motherboard, Intel Core 2 Quad CPU & I/O