438514-001 – HP 1.83GHz 667MHz FSB 2MB L2 Cache Socket PPGA478 Intel Core 2 Duo T5600 Dual-Core (2 Core) Processor

HP NF151AA 2.66GHz 6.40GT/s QPI 8MB L3 Cache Socket FCLGA1366 Intel Xeon X5550 Quad-core (4 Core) Processor

HP FP479AA 3.50GHz 1333MHz FSB 6MB L2 Cache Socket LGA771 Intel Xeon X5270 Dual-core (2 Core) Processor For xw8600/xw6600 Workstation

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

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