Intel Xeon E5520@2.267Ghz/2.533Ghz(Turbo) 4C/8T @80 Watt | Precomp - Server Store
8GB 2X4GB RAM Memory for Apple Mac Pro Quad-Core 3.2GHz Intel Xeon Nehalem DDR3 UDIMM 240pin PC3-8500 1066MHz Black Diamond Memory Module Upgrade - Walmart.com
Intel to Introduce 8-core Xeon Nehalem-EX, 6-core Westmere-EP Processors This Month | TechPowerUp
16GB (2x8GB) DDR3 1066 Memory Mac Pro Quad-core 2.8, 3.2 GHz Intel Xeon " Nehalem" (3rd Party) - Walmart.com