HP 516530-001 2.16GHz 667MHz FSB 1MB L2 Cache Socket PPGA478 Intel Pentium T3400 Dual-core (2 Core) Processor

HP 494026-001 2.26GHz 1066MHz FSB 3MB L2 Cache Socket PGA478 Intel Core 2 Duo P8400 2-Core Processor

HP 508759-001 2.00GHz 533MHz FSB 1MB L2 Cache Socket PBGA479/PPGA478 Intel Celeron 550 Single-core (1 Core) Processor

HP 500692-006 2.16GHz 667MHz FSB 1MB L2 Cache Socket PPGA478 Intel Pentium T3400 Dual-core (2 Core) Processor