Foxconn G31MX-K BIOS 773F1P14 Intel® Core™2 Quad, Core™2 Duo, Pentium® Dual-Core, Pentium® D, Pentium® 4, Celeron® processors, Socket T (LGA775) Supports Intel® next generation 45nm Multi-Core processors 1333/1066/800/533(** )MHz (FSB) Dual channel DDR2 800/667 x 2 DIMMs, Max 4GB 1 x PCIe x16, 1x PCIe x1, 2 x PCI ATA100 x 1 + SATAII x 4 5.1 channel, Realtek® ALC662 Gigabit Lan ,Realtek® RTL8111B / RTL8111D 8 USB 2.0 ports