P4PE-X socket 478 Pentium 4 motherboard is based on the Intel 845PE chipset. Supporting industry-leading technologies such as DDR400, and FSB800 and an abundance of advanced features, the all-new P4PE-X enables outstanding performance and value. P4PE-X supports FSB 800 MHz P4 CPU and Intel Hyper-Threading Technology. They raise the bar of PC industry and deliver a full value, high-performance solution for today's most demanding tasks. When the system hangs due to over-clocking failure, there is no need to open the case to clear CMOS data. Simply restart the system and the BIOS will automatically restore the CPU default setting for each parameter. With ASUS EZ Flash, you can update BIOS before entering operating system. No more DOS-based flash utility and bootable diskette required.