Supermicro MBD-X7DBU-O. Processor socket: Socket 771. Supported memory clock speeds: 533, 667 MHz, Supported DIMM module capacities: 1GB, 256MB, 2GB, 4GB, 512MB, Memory channels support: dual. RAID levels: 0, 1, 5, 10. BIOS type: Phoenix, BIOS memory size: 8 MB, ACPI version: 2.0. Ethernet interface type: Gigabit, LAN controller: Intel 82563EB