DDR3 1866(O.C.) motherboard with EPU power optimization on AM3+ platform ASUS EPU - System Level Energy SavingAnti-surge - Full-time Power Guardian-Make System Free From RiskTurbo key - Touch-n-Boost！Core Unlocker - Unleash True Core Performance Intelligently Shop Modal header AMD® FX™ /Phenom™II /Athlon™II /Sempron™ 100 Series Processors (Socket AM3+) This motherboard supports AMD® AM3+ multi-core processors with unique L3 cache and delivers better overclocking capabilities with less power consumption. It features dual-channel DDR3 memory support and accelerates data transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus. This motherboard also supports AMD® CPUs in the new 32nm manufacturing process. Core Unlocker Unleash True Core Performance IntelligentlyASUS Core Unlocker simplifies the activation of a latent AMD® CPU—with just pressing a key. Enjoy an instant performance boost by simply unlocking the extra cores, without performing complicated BIOS changes. EPU-4 Engine System Level Energy SavingThe new ASUS EPU - the world´s first power saving engine, has been upgraded to a new 4-engine version, which provides total system power savings by detecting current PC loadings and intelligently moderating power in real-time. The EPU automatically provides the most appropriate power usage for the CPU, VGA card, hard drives and CPU cooler fan - helping save power and money. Turbo Key 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!! ESD Protect Your Computer with ESD Guards. Electrostatic discharge (ESD) conditions can happen while plugging or unplugging any USB peripherals-causing damage to the computer. ASUS ESD Guards clamp the ESD voltage and shunt the majority of the ESD current away for a more reliable computing environment. ASUS Anti-Surge Protection Anti-Surge Protection Design detects overvoltage conditions and prevents voltage surges from spreading in real time. It also actively cuts off the overvoltage supply to protect the system.1. Real-time over voltage detection.2. Active protection against potential damage to your motherboards and systems. 8-channel high definition audio Enjoy high-end sound system on your PC! The onboard 8-channel HD audio (High Definition Audio, previously codenamed Azalia) CODEC enables high-quality 192KHz/24-bit audio output, jack-sensing feature, retasking functions and multi-streaming technology that simultaneously sends different audio streams to different destinations. You can now talk to your partners on the headphone while playing a multi-channel network games. All of these are done on one computer.* Use the chassis with HD audio module in the front panel to support 8-channel audio output. CrashFree BIOS 3 Simply restore corrupted BIOS data from USB flash diskThe 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 Simply update BIOS from a USB flash disk before entering the OSEZ 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. C.P.R.(CPU Parameter Recall) The BIOS C.P.R. feature automatically restores the CPU default settings when the system hangs due to overclocking failure. C.P.R. eliminates the need to open the system chassis and clear the RTC data. Simply shut down and reboot the system, and the BIOS automatically restores the CPU parameters to their default settings. ErP ready The motherboard is European Union´s Energy-related Products (ErP) ready, and ErP requires products to meet certain energy efficiency requirements in regards to energy consumptions. This is in line with ASUS vision of creating environment-friendly and energy-efficient products through product design and innovation to reduce carbon footprint of the product and thus mitigate environmental impacts. Q-FAN ASUS Q-Fan technology intelligently adjusts fan speeds according to system loading to ensure quiet, cool and efficient operation.