NP831 – Dell 1.8GHz 667MHz FSB 2MB L2 Cache Socket PPGA478 Intel Core 2 Duo T5600 Dual-Core (2 Core) Processor

HP NF146AA 2.00GHz 4.80GT/s QPI 4MB L3 Cache Socket FCLGA1366 Intel Xeon E5504 Quad-core (4 Core) Processor Kit For Z600/Z800 Workstation

HP KD215AA 3.00GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Intel Xeon X5450 Quad-core (4 Core) Processor For xw8600 Workstation

HP KY116AA 3.40GHz 1600MHz FSB 6MB L2 Cache Socket LGA771 Intel Xeon X5272 Dual-core (2 Core) Processor

HP NF148AA 2.26GHz 5.86GT/s QPI 8MB L3 Cache Socket FCLGA1366 Intel Xeon E5520 Quad-core (4 Core) Processor For Z600/Z800 Workstation