ASUS RS520-E6/ERS8, Intel® 5520, Socket B (LGA 1366), Intel, Intel® Xeon®, E5500, E5600, L5500, L5600, X5500, X5600, DDR3-SDRAM ASUS RS520-E6/ERS8. Motherboard chipset: Intel® 5520, Processor socket: Socket B (LGA 1366), Processor family: Intel. Supported memory types: DDR3-SDRAM, Supported DIMM module capacities: 16GB, 1GB, 2GB, 4GB, 8GB, Maximum RDIMM memory: 96 GB. Storage drive sizes supported: 3.5", Supported storage drive interfaces: Serial ATA II, Storage controller: Intel ICH10R. Maximum graphics card memory: 8 MB. Ethernet interface type: Fast Ethernet, Gigabit Ethernet, Ethernet LAN data rates: 10,100,1000 Mbit/s, LAN controller: Intel® 82574L