SUPERMICRO H8DGU-F-O Extended ATX Server Motherboard Dual Socket G34 AMD SR5670 DDR3 1333 CPU Type: Dual AMD Opteron 6100 series 8/12-Core ready South Bridge: AMD SP5100 Number of DDR3 Slots: 16 x 240pin Maximum Memory Supported: up to 256GB of DDR3 Reg. ECC 1333/1066/800 or 64GB of DDR3 Unb./non-ECC memory ECC Supported: Yes Registered: Yes SATA: 6 x SATA 3.0Gb/s SATA RAID: 0/1/10