Processor(s): (1) Quad-Core Intel Xeon E5420 Processor (2.50 GHz, 80 Watts, 1333 FSB) 12MB (2 x 6MB) L2 cache). Chipset: Intel 5000Z Chipset. Memory: 1GB (2 x 512 MB) ECC PC2-5300 Fully Buffered DIMMs (DDR2-667). Network Controller: Embedded NC373i Multifunction Gigabit Server Adapter with TCP/IP Offload Engine. Storage Controller: Smart Array E200i/64 Controller (RAID 0/1/1+0). Hard Drive: None Ship Standard; (0/6 LFF). Optical Drive: 16x DVD-ROM standard. PCI-Express Slots: Six expansion slots (three PCI Express, three PCI-X). Integrated Lights-Out 2. Power Supplies: 800-Watt CE-mark compliant Hot-Plug power supply, optional second power supply provides redundant operation. Fans: 2 fans ship standard, 4 fans total supported (does not include power supply or processor heatsink fans). Form Factor: Rack (5U).