System Level Energy Saving Intel® P43 chipset Turbo Key DDR3 1600 (O.C.) ASUS EPU-4 Engine ASUS Express Gate Shop Modal header LGA775 Intel® 45nm Processor Ready This motherboard supports the latest Intel 45nm CPU which introduces new micro-architecture features for greater performance at a given frequency, up to 50% larger L2 caches, and expanded power management capabilities for new levels of energy efficiency. Intel® Core™2 Extreme / Core™2 Quad / Core™2 Duo CPU support This motherboard supports Intel® LGA775 Core™ 2 Extreme / Core™ 2 Quad/ Core™ 2 Duo processors, which are excellent for multitasking, multimedia, and enthusiastic gamers with 1600 (O.C.)/1333/ 1066/ 800 MHz FSB. This motherboard also supports Intel® CPUs in the 45nm manufacturing process. Dual channel DDR3 1600 O.C. DDR3 1600(O.C.) memory provides great performance for 3D graphics and other memory demanding applications on next generation memory technology. PCI Express Architecture PCI Express is the latest I/O interconnect technology that will replace the existing PCI. With a bus bandwidth 2 times higher than that of AGP 8X interface, PCI Express x8 bus performs much better in applications such as 3D gaming. SATA 3Gb/s This motherboard supports next-generation SATA hard drives based on the new SATA 3Gb/s storage specification. High Definition Audio Enjoy high-quality sound system on your PC! The onboard 8-channel HD audio (High Definition Audio, previously codenamed Azalia) CODEC enables high-quality audio output, jack-detect feature automatically. S/PDIF-out on Back I/O Port This motherboard provides convenient connectivity to external home theater audio systems via coaxial and optical S/PDIF-out (SONY-PHILIPS Digital Interface) jacks. It allows to transfer digital audio without converting to analog format and keeps the best signal quality. ASUS Express Gate 0 to Internet in Seconds!Express Gate™ is an ASUS exclusive OS that provides you with quick access to the Internet and key applications before entering Windows®. Turbo Key Touch-n-Boost!ASUS Turbo Key allows the user to turn the PC power button into a physical overclocking button. After the easy setup, Turbo Key can boost performances without interrupting ongoing work or games - with just one touch!! EPU The ASUS EPU (Energy Processing Unit) provides total system power management by detecting current PC loadings and intelligently moderating power in real-time. It automatically provides the most appropriate power usage for the CPU, VGA card, hard drives, and CPU/chassis fans- helping save power and money! AI NET2 Diagnose LAN connection before entering OS!AI NET2 remotely detects cable connection the second you turn on the system, and any faulty connections are reported back up to 100 meters at 1 meter accuracy. Gigabit Lan This capability ensures rapid transfer of data from WAN to LAN without any added arbitration or latency. ASUS Q-Fan ASUS Q-Fan technology intelligently adjusts CPU fan speeds according to system loading to ensure quiet, cool and efficient operation. 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. CrashFree BIOS 3 The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data from a USB flash disk containing the BIOS file. This utility saves users the cost and hassle of buying a replacement BIOS chip. EZ Flash 2 EZ Flash 2 is a user-friendly BIOS update utility. Simply launch this tool and update BIOS from a USB flash disk before entering the OS. You can update your BIOS only in a few clicks without preparing an additional floppy diskette or using an OS-based flash utility. MyLogo 2 You can convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on your screen. GreenASUS The motherboard and its packaging comply with the European Union´s Restriction on the use of Hazardous Substances (RoHS). This is in line with the ASUS vision of creating environment-friendly and recyclable products and packaging to safeguard consumers´ health while minimizing the impact on the environment.