M4N78 PRO

    Brand New Design Optimized for AM3 CPU

    • O.C. DDR2 1200
    • AMD AM3 CPU support
    • EPU
    • TurboV
    • Turbo Key
    • ASUS Anti-Surge Protection
    • AMD 140W CPU Support
      Product Image
      CPU, Chipset and Graphics Features
      AMD® Phenom™ II/Athlon™ X4/Athlon™ X3/ Athlon™ X2 (AM3 CPU)
      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 DDR2 1066 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 45nm manufacturing process.

      AMD® Phenom™ X4/ Phenom™ X3 / Athlon™ X2/ Athlon™/ Sempron™ processors (socket AM2+/AM2)
      This motherboard supports AMD® Socket AM2+ multi-core processors. It features dual-channel DDR2 1066 memory support, data transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus, and AMD® Cool ´n´ QuietTM Technology.

      NVIDIA GeForce® 8300
      NVIDIA® GeForce 8300 offers the latest support of Hybrid SLI Technology, DirectX® 10 graphics features, HD video playback with HDMI/DVI output. It also supports HyperTransport™ 3.0 interface, PCI Express™ 2.0 bus architecture, Serial ATA 3 Gb/s devices and is optimized with AMD’s latest AM3/AM2+ and multi-core CPUs to provide excellent system performance.

      HyperTransport 3.0
      HyperTransport™ 3.0 technology provides 2.6 times more bandwidth than HyperTransport™ 1.0, radically improving system efficiency to create a smoother, faster computing environment.

      O.C. DDR2 1200
      To attain top performance, ASUS engineers have successfully unleashed DDR2 1200(O.C.) MHz to meet the higher bandwidth requirements of the latest operation system, 3D graphics, multimedia, and Internet applications.

      *Ensure that you download and update to the latest BIOS at www.asus.com and purchase the memory modules listed in the ASUS official memory Qualified Vendors Lists (QVL).
      ** We recommend that you install the DDR2 1200 memory modules on the yellow slots for better performance.

      PCIe 2.0 support
      This motherboard supports the latest PCIe 2.0 devices for double speed and bandwidth which enhances system performance.

      Hybrid SLI Support
      GeForce® Boost
      Boosted Performance with Onboard GPU and Discrete Graphics Card HybridPower™
      Intelligent Graphics Power-Savings and Quiet Operations

      Hybrid SLI™ technology is a unique hybrid multi-GPU technology. It includes two primary features: GeForece Boost and HybridPower™. GeForece Boost turbo-charges performance of discrete graphics cards when combined with the motherboard GPUs. HybridPower™ unleashes graphics performance for demanding 3D applications and enables low-power operation for everyday computing needs.
      * GeForce®(R) Boost and HybridPower™ are on select GeForce®(R) GPUs. Visit www.nvidia.com/hybridsli for more information.

      HDMI Support
      Enjoy Full HD 1080p Multimedia Home-Theater Entertainment
      High-Definition Multimedia Interface (HDMI) is a set of digital video standards that delivers multi-channel audio and uncompressed digital video for full HD 1080p visuals through through a single cable. Supporting HDCP copy protection such as HD DVD and Blu-ray Discs, HDMI provides you with the highest-quality home theater experience.

      HDMI/DVI/RGB Support
      Flexible Graphics Alternatives
      This motherboard supports multiple digital and analog display output interfaces - HDMI, DVI, and D-Sub. With such diversity of display outputs, you are able to choose and upgrade display devices freely.

      ASUS Power Solutions
      4+1 Phase Power Design
      Longer Life & Higher Efficiency!
      Unleashes ultimate memory performances with independent power to core components, while providing fast transient response and stability for the CPU under heavy loading or overclocking modes.

      ASUS Anti-Surge Protection
      This special design prevents expensive devices and the motherboard from damage caused by power surges.

      ASUS Green Design
      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!
      *ASUS EPU is supported by AM2+/AM3 CPU only.

      AI Nap
      Minimize noise and power consumption when temporarily away!
      With AI Nap, users can instantly snooze your PC without terminating the tasks. System will continue operating at minimum power and noise when user is temporarily away. It keeps downloading files or running applications in quietest state while you´re sleeping. Simply click keyboard or mouse, you can swiftly wake up the system in few seconds.

      ASUS Overclocking Tools
      Feel the adrenaline rush of real-time O.C. - now a reality with the ASUS TurboV. This easy O.C. tool allows you to overclock without exiting or rebooting the OS; and its user-friendly interface makes overclock with just a few clicks away. Moreover, the ASUS OC profiles in TurboV provides the best O.C. settings in different scenarios.

      Turbo Key
      ASUS Turbo Key allows the user to turn the PC power button into an overclocking button. After the easy setup, Turbo Key can boost performances without interrupting ongoing work or games - with just one touch!!

      Express Gate

      Express Gate
      Instant Online! Instant Fun!
      Taking only 5 seconds to bootup, Express Gate is the one-stop gateway to instant fun! It´s a unique motherboard built-in OS. You can utilize the most popular Instant Messengers (IM) like MSN, Skype, Google talk, QQ, and Yahoo! Messenger to keep in touch with friends, or quickly check on the weather and e-mails just before leaving your house. What´s more, the user-friendly picture manager lets you view your pictures without entering Windows at anytime!
      * The actual boot time is subject to hardware configurations and product models.

      Industry Standard

      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.

      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 Q-Connector allows you to easily connect or disconnect the chassis front panel cables to the motherboard. This unique module eliminates the trouble of connecting the system panel cables one at a time and avoiding wrong cable connections

      O.C. Profile
      Conveniently store or load multiple BIOS settings
      Freely share and distribute favorite overclocking settings The motherboard features the ASUS O.C. Profile that allows users to conveniently store or load multiple BIOS settings. The BIOS settings can be stored in the CMOS or a separate file, giving users freedom to share and distribute their favorite overclocking settings.

      ASUS CrashFree BIOS 2
      This feature allows you to restore the original BIOS data from the support CD in case when the BIOS codes and the data are corrupted. This protection eliminates the need to buy a replacement ROM chip.

      ASUS EZ Flash2
      With ASUS EZ Flash, you can update BIOS before entering operating system. No more DOS-based flash utility and bootable diskette required.

      ASUS Quiet Thermal Solutions
      ASUS Q-Fan 2
      ASUS Q-Fan2 technology intelligently adjusts both CPU fan and chassis fan speeds according to system loading to ensure quiet, cool and efficient operation.

      Stylish Heatsink
      The streamline-shaped heatsink features 0-dB thermal solution that offers users a noiseless PC environment. Not only the beautifully curved fins upgrade the visual enjoyment for motherboard users, but also the special Streamline Airflow Guiding design lowers the temperature of the north bridge chipset through high efficient heat-exchange. Combined with usability and aesthetics, the ASUS streamline-shaped heat-sink will give users an extremely silent and cooling experience with the elegant appearance!

      Other ASUS Features

      Uses 100% All High-quality Conductive Polymer Capacitors!(VRM 5000hrs lifespan @105°C, 500,000hrs @65°C)
      This motherboard uses all high-quality conductive polymer capacitors onboard for durability, improved lifespan, and enhanced thermal capacity..

      Personalize your system with customizable boot logo You can convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on your screen.

      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.


      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.