The P5 motherboard series features 64-bit beta driver support for the next-generation 64-bit computing architecture. The P5 motherboard series is the reliable platform for Intel 600 series CPU that incorporates EM64T (Intel Extended Memory 64 Technology) and EIST (Enhanced Intel SpeedStep technology) power saving technologies. With superior engineering capability, ASUS proudly presents the high-quality motherboards to bring advanced system performance, faster memory access and increased productivity. Moreover, the P5 Series supports both 64-bit and 32-bit operations, providing excellent system compatibility and upgrade flexibility.