XP686AV – HP 3.33GHz 1066MHz FSB 2MB L3 Cache Socket LGA775 Intel Pentium E6800 Dual-Core (2 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 KD215AA 3.00GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Intel Xeon X5450 Quad-core (4 Core) Processor For xw8600 Workstation

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

HP P1770A 800MHz 1333MHz FSB 256KB L2 Cache Socket PPGA370 / SECC2495 Intel Pentium III Single-core (1 Core) Processor