Asus P5Q Turbo Core 2 Quad/Intel P45/ DDR2-1300/ A&GbE/ATX Motherboard Form Factor - ATX Form Factor 12 inch x 9.2 inches CPU - Intel Socket 775 Core 2 Quad/Core 2 Extreme/Core 2 Duo/Pentium dual-core/Celeron processors Support Intel 45nm Multi-Core CPU Chipset - Intel P45 / ICH10R with Intel Fast Memory Access (FMA) support Front Side Bus - 1600/1333/1066/800 MHz Memory - 4 x DIMM, Max. 16 GB, DDR2 1300/1200/1066/800/667 Non-ECC,Un-buffered Memory Dual Channel memory architecture