Intel LGA775 Pentium 4 CPUDual-Core CPUVIA PT880 Ultra Dual-Channel DDR 400/333PCI Express & AGP8X combo solutionSATA with RAID 0, 1, JBOD Shop Modal header PCI Express & AGP8X combo solution for the price conscious Intel LGA775 Pentium 4 CPU This motherboard supports the latest Pentium 4 CPU from Intel in LGA775 package. With 1066/ 800/ 533MHz FSB, Hyper-Threading Technology and core-speeds up to 3.8GHz and beyond, Intel's LGA775 Pentium 4 is one of the fastest desktop processors to date. Supports Intel® Dual/Single-Core 65nm ProcessorsThis motherboard support IntelR 65nm PentiumR D/ IntelR PentiumR 4/ CeleronR processors. ASUS motherboard is the ideal solution to enhance the performance of new generation processors. 64-bit CPU support 64-bit computing, the next generation technology to replace current 32-bit architecture, delivers advanced system performance, faster memory access and increased productivity. This motherboard provides excellent compatibility and flexibility by supporting either 64-bit or 32-bit architecture. Dual-Channel DDR400 Dual-channel DDR technology doubles the bandwidth of your system memory and hence boost the system performance to out perform any memory existing solutions in the market. System bottlenecks are eliminated with balanced architecture and peak bandwidths up to 6.4GB/s. PCI Express & AGP8X Combo Design This motherboard supports PCI Express x16 and AGP8X slots to provide ultimate flexibility for graphics card upgrade. The PCI Express x16 slot running at PCI Express x4 speed outperforms PCI interface with its exceptional high bandwidth up to 2GB/s. Serial ATA RAID Serial ATA is the next generation ATA specification that provides scalable performance for today and tomorrow. With up to 150MB/s data transfer rate, Serial ATA is faster than current Parallel ATA, while providing 100% software compatibility. The onboard VIA VT8237R southbridge allows RAID 0, RAID 1 and JBOD configuration for two SATA connectors. ASUS Q-Fan ASUS Q-Fan technology intelligently and automatically adjusts CPU fan speeds according to system load and temperature, enabling users to work in a distraction-free environment with minimal noise. 6 Channel Audio & SoundMAX Digital Audio System The SoundMAX Digital Audio System is the industry's highest performance and most reliable audio solution for business perfessionals, audiophiles, musicians, and gamers. SoundMAX Digital Audio System can output 5.1 channel surround sound and features state-of-the-art DLS2 MIDI synthesizer with Yamaha DLSbyXG sound set, 5.1 Virtual Theater TM and supports and major game audio technologies including Microsoft DirectX TM 8.0, Microsoft DirectSound 3D, A3D, MacroFX, ZoomFX, MultiDrive 5.1, A3D and Extreme AX. S/PDIF-out on Back I/O PortThis motherboard provides convenient connectivity to external home theater audio systems via an S/PDIF-out (SONY-PHILIPS Digital Interface) jack. It allows to transfer digital audio without converting to analog format and keeps the best signal quality. ASUS CrashFree BIOS2 The CrashFree BIOS2 feature now includes the BIOS auto-recovery function in a support CD. Users can reboot their system through the support CD when a bootable disk is not available, and go through the simple BIOS auto-recovery process. ASUS motherboards now enable users to enjoy this protection feature without the need to pay for an optional ROM. C.P.R.(CPU Parameter Recall) When the system hangs due to overclocking failure, there is no need to open the case to clear CMOS data. Just simply restart the system, the BIOS would show the previous setting and then users can amend the CPU setting again.