HP 507959-002 - Intel Core 2 Duo processor P9500 - 2.53GHz (Penryn-MV, 1066MHz bus speed, 6MB total Level-2 cache, Micro-FCPGA socket, 25W TDP, 45n Retail
HP 507957-001 - Intel Core 2 Duo processor P9600 - 2.80GHz (Penryn-MV, 1066MHz front side bus, 6MB total Level-2 cache, 35Watt TDP, 65nm) Retail
HP 507958-001 - Intel Core 2 Duo processor P9500 - 2.53GHz (Penryn-MV, 1066MHz bus speed, 6MB total Level-2 cache, Micro-FCPGA socket, 25W TDP, 45n Retail
HP 501484-001 - Intel Core 2 Duo processor SL9300 - 1.6GHz (Penryn, 1066MHz front side bus, 6MB Level-2 cache) - Includes replacement thermal mater Retail
HP 513947-001 - System board (motherboard) with Intel Core 2 Duo LV processor SL9600 - 2.13GHz (Penryn, 1066MHz front side bus, 6MB Level-2 cache) Retail