Based on the X38/ICH9R chipset, the Asus P5E Intel X38 is built for the most powerful processors, including the Intel Core 2 Extreme, Core 2 Quad, Core 2 Duo, Pentium Extreme, Pentium D, Pentium 4, and Intel 05B/05A/06 CPUs with FSB up to 1600MHz. And it supports Intel’s next-generation 45nm multi-core processors, dual-channel DDR2 1200/1066/800/667MHz memory up to 8GB, PCIe2.0 x16, CrossFire Technology, six (6) SATA 3.0 Gb/s, IEEE 1394, and the SupremeFX II audio card for 8-channel high-definition sound. Other superb features include 12 USB 2.0 ports, Gigabit LAN controller, and a variety of ASUS AL Lifestyle technologies.