CPU

HPE Intel Xeon E5345 Quad Core processor - 2.33 GHz (Clovertown, 1333 MHz front side bus, 8MB (2x4MB) Level-2 cache, LGA771 socket) - Includes thermal grease and alcohol pad

HPE Intel Xeon E5345 Quad Core processor - 2.33GHz (Clovertown, 8MB Level-3 cache, 1333 MegaTransfer per second (MT/s) Front Side Bus (FSB), 80W Thermal Design Power (TDP), socket LGA 771)

HPE Intel Xeon L5335 2.0GHz Quad Core 8MB Low Voltage BL460c Processor Option Kit

HPE AMD Opteron 2222 3.0GHz Dual Core 2MB BL465c Processor Option Kit

HPE Intel Celeron processor - 1.6GHz (Conroe, 800MHz front side bus, 512KB Level-2 cache (single core), FC-LGA6, socket 775)

HPE Intel Celeron-L440 processor - 2.0GHz (Conroe, 800MHz front side bus, 512K Level-2 cache, LGA775)