Used works on LGA 775 motherboard Xeon E5420 Processor 2.5GHz 12M 1333Mhz close to Core 2 Quad Q6600 cpu - AliExpress
Amazon.com: E5450 E5450 Intel Xeon SLANQ Or SLBBM Quad-Core 3.0GHz 12MB 1333MHz Socket 775 Works On LGA 775 Mainboard No Need Adapter : Everything Else