H8DA8-2 Motherboard; Two Six-Core / Quad-Core AMD Opteron 2000 Series (Socket F) support; HT3.0 Link support; nVidia MCP55 Pro nVidia IO-55 Chipset NEC uPD720400; Up to 64GB DDR2-800/667/533 SDRAM; Dual-port Gigabit LAN/Ethernet Controller; 2-Channel Ultra320 SCSI with Zero-Channel RAID support; 2 (x16) 1 (x8) & 1 (x4) (using x8 slot)PCI-e 1 64-bit 133MHz PCI-X 1 64-bit 100MHz PCI-X; SIMLP IPMI 2.0 Support; 8 Fan Support with Speed Control