Dynatron P199 1U Rackmount CPU Cooler, Intel LGA 775, Core 2 Quad, Duo – MITXPC
Used Xeon E5450 Processor 3.0GHz 12M 1333Mhz works on lga 775 mainboard no need adapter - AliExpress
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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