Gigabyte GA-K8N Ultra-SLI. Memory slots type: DIMM, Supported memory types: DDR400/ 333/ 266 -184pin, Memory channels support: dual. Processor family: AMD, Processor socket: Socket 939, Processors compatible: AMD Athlon64 X2/ 64 FX/ 64. Audio system: Realtek ALC850 Audio AC"97. Width: 30.5 mm, Depth: 24.4 mm. BIOS type: AWARD, BIOS memory size: 8 MB