Foxconn P31A-G BIOS 84BF1P04 Intel® Core™2 Quad, Core™2 Duo, Pentium® Dual-Core, Pentium® D, Pentium® 4, Celeron® processors, Socket T (LGA775) Supports Intel® 45nm Multi-Core processors 1600(oc)/1333/1066/800 MHz (FSB) Dual channel DDR2 1066(oc)/800/667 x 2 DIMMs, Max 4GB 1* PCIe x16, 2* PCIe x1,3* PCI 4 x SATAII ,1 x ATA100 7.1 channel HDA by Realtek® ALC888, Gigabit Lan by Broadcom® BCM5786 8 USB 2.0 ports