ASUS RS500A-E6/PS4, AMD SR5650, Socket G34, AMD SP5100, AMD, 6.4 GT/s, AMD Opteron ASUS RS500A-E6/PS4. Motherboard chipset: AMD SR5650, Processor socket: Socket G34, Motherboard southbridge: AMD SP5100. Supported DIMM module capacities: 1GB, 2GB, 4GB, 8GB, Maximum RDIMM memory: 256 GB, Maximum UDIMM memory: 64 GB. Storage drive sizes supported: 3.5", Supported storage drive interfaces: Serial ATA, Storage controller: AMD SP5100. Maximum graphics card memory: 8 MB. Ethernet interface type: Fast Ethernet, Gigabit Ethernet, Ethernet LAN data rates: 10,100,1000 Mbit/s, Copper ethernet cabling technology: 1000BASE-T, 1000BASE-TX, 100BASE-TX, 10BASE-T