Intel Pentium Dual Core (E6600) 3.06GHz Processor
Processor - 1 x Intel Dual-Core Xeon E3110 / 3 GHz ( 1333 MHz ) - LGA775 Socket - L2 6 MB - Box
Processor - 1 x Intel Quad-Core Xeon X3220 / 2.4 GHz ( 1066 MHz ) - LGA775 Socket - L2 8 MB ( 2 x 4MB (4MB per core pair) ) - Box
Intel XEON X3330 2.66GHZ SKT775 FSB1333 6MB CACHE BOXED
Intel Xeon Quad-Core (E5506) 2.13GHz Processor 4086KB L3 Cache 133MHz FSB (Boxed)
Intel XEON E5504 2.00GHZ 4.80GT/S SKT1366 4MB BOXED W/O HEATSINK IN
Processor upgrade - 1 x Intel Quad-Core Xeon E5405 / 2 GHz ( 1333 MHz ) - LGA771 Socket - L2 12 MB
Intel Xeon Quad-Core (E5520) 2.26GHz Processor
HP Intel Xeon Quad Core (E5504) 2.0GHz 80 Watts 2nd Processor