Gigabyte Core 2 Quad/Intel G31/FSB1333/DDR2-800/A&V&GbE/Micro ATX Motherboard GA-G31M-ES2L GIGABYTE GA-G31M-ES2L Socket 775 Motherboard General Features: MicroATX form factor (24.4 cm x 19.4 cm) Socket 775 Supports up to 4 GB DDR2 1066(overclock)/800/667 MHz RAM Intel G31 Express North-bridge chipset Intel ICH7 South-bridge chipset 1600(overclock)1333/1066/800 MHz Front Side Bus (FSB) Supports various Intel Core 2, Pentium, and Celeron processors