BIOSTAR G31D-M7 Ver. 7.x/8.x BIOS G31GM201 Socket : 775 Socket LGA 775 Supports Intel Core 2 Duo/Pentium Dual-Core/Celeron Dual-Core/Celeron 400 Series Processor Supports FSB 800/1066/1333MHz Support Intel Hyper-Threading Technology FSB 533MHz is not supported by this motherboard. CPU TDP over 65W is not available. Please refer to CPU support for further information. Supports BIO-Remote 2 Technology