Intel Xeon X5470 SLBBF Processor(3.33GHz/12M/1333) Equal to Core 2 Quad Q9750 cpuworks (LGA 775 mainboard no Need Adapter): Amazon.com: Industrial & Scientific
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