CPU

HPE Intel Xeon X5550 Quad-Core 64-bit processor - 2.66GHz (Nehalem-EP, 8MB Level-3 cache, Intel QuickPath interconnect (QPI) speed 6.4 GT/s, 95W thermal design power (TDP), socket FCLGA 1366)

HPE Intel Xeon E5540 Quad-Core 64-bit processor - 2.53GHz (Nehalem), 8MB Level-3 cache, Intel QuickPath Interconnect (QPI) speed 5.86 GT/s, 80 watt thermal design power (TDP), FCLGA 1366 socket

HPE Intel Xeon E5504 Quad-Core 64-bit processor - 2.00GHz (Nehalem), 4MB Level-3 cache, Intel QuickPath interconnect (QPI) speed 4.8 GT/s, 80 watt thermal design power (TDP), FCLGA 1366 socket

HPE Intel Xeon E5502 Dual-Core 64-bit processor - 1.86GHz (Nehalem), 4MB Level-3 cache, Intel QuickPath interconnect (QPI) speed 4.8 GT/s, 80 watt thermal design power (TDP), FCLGA 1366 socket

HPE Intel Xeon X7460 Six-Core performance processor - 2.66GHz (Dunnington, 16MB Level-2 cache, 1066MHz front side bus (FSB), 130 watt thermal design power (TDP), socket 604 mPGA)

HPE Intel Xeon E7420 Quad-Core processor - 2.13GHz (Dunnington, 8MB Level-2 cache, 1066MHz front side bus (FSB), 90 watt thermal design power (TDP), socket 604 mPGA)