MSI G31M-F Intel G31 Core 2 Quad DDR2 800 SATAII A/V GbE MATX Motherboard Support for the Intel Core 2 Quad, Core 2 Duo, Pentium and Celeron processors, 1333 / 1066 / 800 MHz system bus in the LGA775 package Two DIMM sockets, designed to support up to 4GB of DDR2 800/667 MHz Dual channel memory 4 x SATA 3.0 Gb/s ports 1 x Ultra DMA 100 / 66 for up to 2 PATA devices 1 x PCI-E x16, 1 x PCI x1, 2 x PCI