CPU

HPE Intel Dual-Core processor E2160 - 1.8GHz (800MHz front side bus, 1MB Level-2 cache socket 775)

HPE Intel Xeon E5405 Quad-Core 64-bit processor - 2.00GHz (Harpertown, 12MB Level-2 cache, 1333MHz front side bus, 80 watt thermal design power (TDP), socket LGA771) - Includes thermal grease and alcohol pad

HPE Intel Xeon E5450 Quad-Core 64-bit processor - 3.00GHz (Harpertown, 12MB Level-2 cache, 1333MHz front side bus, 80 watt thermal design power (TDP), socket LGA771) - Includes thermal grease and alcohol pad

HPE Intel Xeon E5405 2.0GHz Quad Core 12MB DL180 G5 Processor Option Kit

HPE Intel Xeon X5460 3.16GHz Quad Core 12MB BL480c Processor Option Kit

HPE Intel Xeon E5450 3.0GHz Quad Core 12MB BL480c Processor Option Kit