HP ProLiant DL385 G5 Configure-to-order Rack Chassis. Processor upgrade: Upgradeable to 2 processors. Maximum internal memory: 64 GB, Memory slots: 8 DIMM slots. Maximum graphics adapter memory: 32 MB, Graphics adapter: ATI ES1000. Chassis type: Rack (2U). Power supply type: 800 Watt, CE Mark Compliant. Optional Hot Plug AC Redundant Power Supply, Power requirements: 100 VAC, 120 VAC, 200-240 VAC; 50 to 60 Hz