AMD Model 850 2.4GHz/1M "tray", - new, never used w/90-day warranty $499.00 AMD 2.2GHz Opteron MP 848 "tray" - new, never used w/90-day warranty $499.00 AMD 2.0GHz Opteron MP 846 "tray" - new, never used. w/90-day warranty $499.00