P4H6Y – Dell 3.50GHz 5GT/S Socket LGA1155 6MB Cache Intel Core I5-3450 Quad-Core Processor

HP NF150AA 2.53GHz 5.86GT/s QPI 8MB L3 Cache Socket FCLGA1366 Intel Xeon E5540 Quad-core (4 Core) Processor Kit For Z600/Z800 Workstation

HP FP477AA 3.40GHz 1600MHz FSB 12MB L2 Cache Socket LGA771 Intel Xeon X5492 Quad-core (4 Core) Processor

HP NF147UT 2.13GHz 4.80GT/s QPI 4MB L3 Cache Socket FCLGA1366 Intel Xeon E5506 Quad-core (4 Core) Processor

HP KY198AA 3.00GHz 1333MHz FSB 6MB L2 Cache Socket LGA771 Intel Xeon E5240 Dual-core (2 Core) Processor Kit For xw6600/xw8600 Workstation