Gigabyte GA-M56S-S3. Supported memory types: DDR2 800/667/533/400 DIMMs, Maximum internal memory: 16 GB. Processor family: AMD, Processor socket: Socket AM2, Processors compatible: Athlon™ 64 FX / Athlon™ 64 X2 Dual-Core / Athlon™ 64 / Sempron™. Audio system: Realtek ALC888. Width: 305 mm, Depth: 214 mm. LAN controller: Realtek RTL8211BL