Dell Precision T7500 Workstation 2x X5650 Six Core 2.66Ghz 192GB 1TB Q4000 Win 7 Pro Form Factor: Tower Optical Drive Type: DVD±RW Power Supply: 1100W Software Included: Windows 7 Professional Chipset: Intel 5520 CPU FSB: 1333 MHz CPU Socket Type: LGA 1366 CPU Main Features: Hyperthreading