SUPERMICRO MBD-H8SGL-F-O ATX Server Motherboard Socket G34 AMD SR5650 DDR3 1333 CPU Type: AMD Opteron Interlagos 6200 series AMD Opteron 6100 series South Bridge: AMD SP5100 Number of DDR3 Slots: 8 x 240pin Maximum Memory Supported: up to 128GB of DDR3 Reg. ECC 1333/1066/800 or 32GB of DDR3 Unb. ECC/non-ECC memory Channel Supported: Quad Channel ECC Supported: Yes Registered: Yes PCI Express x16: 1 (@ x8 speed)