*Refer to or this user manual for the Memory QVL(Qualified Vendors Lidts). The Top of Game Board Today - Intel Quad-core CPU Ready - Supports Intel next generation 45nm Multi-core CPU - Intel Core2 Extreme / Core2 Duo Ready - Intel X38/ICH9R - Dual-channel DDR2 1200*/1066 MHz Support - Extreme Tweaker - SupremeFX II 8-CH Audio - CPU Level Up - Voltiminder LED - LCD Poster - ASUS EPU (Energy Processing Unit) - 2-Phase DDR2 - COP EX CPU LGA775 socket for Intel Core2 Extreme / Core2 Quad / Core2 Duo / Pentium Extreme / Pentium D / Pentium 4 Processors Support Intel next generation 45nm Multi-Core CPU Compatible with Intel 06/05B/05A processors * Refer to for Intel CPU support list Chipset Intel X38/ICH9R with Intel Fast Memory Access Technology Front Side Bus 1600 / 1333 / 1066 / 800 MHz Memory Dual channel memory architecture 4 x DIMM, support max.