• Unique On/Off Charge delivers the best recharging capability to iPad, iPhone and iPod Touch
  • 3x USB power delivery for greater compatibility and extra power for USB devices
  • Industry leading 12 phase power VRM design for optimum power efficiency and thermal solution
  • Leading quality standard of Ultra Durable™ 3 technology with 2oz copper PCB design
  • Supports newest NEC SuperSpeed USB 3.0 with superfast transfer rates of up to 5 Gbps
  • 3X USB power delivery for greater compatibility and extra power for USB devices
  • Provides newest Marvell SE9128 high speed SATA3 storage interface with superfast 6Gbps link speed
  • New Dynamic Energy Saver™ 2 technology enables best energy efficiency
  • Support Intel Core i7/ Core i5 processors with LGA 1156 socket
  • Innovative Smart 6 technology for smarter PC management
  • Support both ATI CrossFireX and NVIDIA SLI for ultimate graphics performance
  • Smart TPM provides 2048 bits key via Bluetooth cellphone
  • Smart DualLAN with Intelligent LAN port auto-switching
  • XHD technology accelerating hard drive performance with ease
  • AutoGreen technology Greening your PC via Bluetooth cellphone
  • Integrated eSATA/USB combo connectors for enhanced storage flexibility
  • Patented GIGABYTE DualBIOS™ technology delivering highest level failure protection
  • Supports Dolby Home Theater audio to create a stunning surround sound listening experience
  • The Precision OV provides more precision voltage control for system
  • Compatible with Windows 7 to deliver the best operation experience
  • Introduction
    The P55A-UD5 motherboard is designed to offer a stable, high-speed platform for delivering amazingly fast data transfer via the GIGABYTE 333 onboard acceleration technologies. Featuring the world’s first USB 3.0 logo certified host controller from NEC Electronics, P55A-UD5 allows users to take advantage of super fast USB transfer rates of up to 5Gbps, delivering 10x faster data transfer compared to USB 2.0.

    Utilizing the industry's first Serial ATA Revision 3.0 solution, the Marvell® 88SE9128 controller, GIGABYTE P55A-series motherboards offer support for next generation high speed data storage devices with data transfer speeds of up to 6 Gbps. Coupled with RAID 0 (Stripe) mode, SATA Revision 3.0 enables a data transfer boost of up to 4x the speed of SATA Revision 2.0.

    The P55A-UD5 introduce a unique hardware design with lower resistance fuses for ensuring lower voltage drops and providing more stable and plentiful power delivery. All USB ports also benefit from a 3x power boost for better power delivery to power hungry USB devices.
  • On/Off Charge Technology
    GIGABYTE On/Off Charge technology allows you to charge your iPhone, iPad and iPod Touch regardless of whether your PC is on, in standby mode or even off. A derivative of GIGABYTE's highly acclaimed 3x USB Power feature, On/Off Charge enables devices to draw more current from GIGABYTE motherboard USB ports than standard USB ports allow, so that charging from your PC can be as fast as with a charger...more
    *Due to certain mobile phone limitations, users may need to connect the mobile phone to their PC before the PC enters S4/S5 mode to enable a quick charge from non On/Off Charge USB ports. Charging results may vary by model.
    *Whether to support 3X USB power design, it may vary by models.
    On/Off Charge Driver download
  • GIGABYTE P55A-UD5 Obtains USB 3.0 Motherboard Certification Officially
    The GIGABYTE P55A-series motherboards support the latest generation SuperSpeed USB 3.0 technology made possible through an onboard NEC uPD720200 host controller. With superfast transfer rates of up to 5 Gbps, users are able to experience an almost a 10x improvement over USB 2.0. Additionally, backwards compatibility with USB 2.0 assures users of long term use of their legacy USB 2.0 devices. The onboard NEC SuperSpeed USB 3.0 technology also provides new power management features that include increased maximum bus power and device current draw to better accommodate power-hungry devices.

  • SATA 6 Gbps Support
    Yet another onboard feature of GIGABYTE motherboards are Marvell's SE9128 chips for high-speed SATA Revision 3.0 compatibility, delivering superfast 6Gbps link speeds for twice the data transfer rates of SATA Revision 2.0 (3 Gbps). When used in RAID 0 (Stripe) mode, GIGABYTE motherboards offer even faster data transfer rates of up to 4x the speed of current SATA interfaces.

    * SATA3 RAID 0 4x and SATA3 2x performance are maximum theoretical values. Actual performance may vary by system configuration.
    * SATA3 SSDs are not recommended for use in RAID 0 mode on Marvell SE9128 ports.
  • 3x USB Power Boost
    GIGABYTE motherboards feature a 3x USB power boost, delivering greater compatibility and extra power for USB devices. GIGABYTE’s unique USB power design is also able to efficiently regulate output over the full voltage range, which greatly enhances USB device compatibility. In addition, dedicated lower resistance fuses ensure lower voltage drops, and provide more stable and plentiful power delivery.
  • Ultra Durable 3

    Ultra Durable 3
    GIGABYTE Ultra Durable 3 design, featuring 2 ounces of copper for both the Power and Ground layers which dramatically lowers system temperature by delivering a more efficient spreading of heat from critical areas of the motherboard such as the CPU power zone throughout the entire PCB. GIGABYTE's Ultra Durable 3 also lowers the PCB impedance by 50%, which helps to reduce electrical waste and further lowers component temperatures. A 2oz Copper layer design also provides improved signal quality and lower EMI (Electromagnetic Interference), providing better system stability and allowing for greater margins for overclocking...more
  • Benefits of 2 oz Copper PCB



    • Cooler than traditional motherboards
    • Enhanced durability
    • Improved energy efficiency
    • Greater margins for overclocking... more
  • Smart 6- A Smarter way for PC system Management
    GIGABYTE Smart 6™ is designed with user-friendliness in mind, and offers a combination of 6 innovative software utilities that provide easier and smarter PC system management. Smart 6™ allows you to speed up system performance, reduce boot-up time, manage a secure platform and recover previous system settings easily with a click of the mouse button.


    Smart QuickBoot
    No more waiting for PC Boot up

    		 Smart DualBIOS
    Smart personal reminder
    Smart QuickBoost
    One-click Overclocking    		 Smart Recorder
    Your PC's Watch Dog
    Smart Recovery
    Reverse time for you    		 Smart TimeLock
    Time Controller for PC
  • Smart Dual LAN
    GIGABYTE Smart Dual LAN technology features intelligent LAN port auto-switching between the 2 physical Gigabit LAN chips; offering hassle free, zero downtime, high speed network connectivity.
  • Dynamic Energy Saver™ 2
    GIGABYTE Dynamic Energy Saver™ 2 incorporates a host of intelligent features that, at the click of a button, utilize a proprietary hardware and software design to considerably enhance PC system energy efficiency, reduce power consumption and deliver optimized auto-phase-switching for the CPU, Memory, Chipset, VGA, HDD, and fans.
  • Cloud OC
    GIGABYTE Cloud OC is a free overclocking application that facilitates PC overclocking through any web browsing capable device such as a smart phone, iPad, iPhone, Netbooks or notebook PC. Being browser based, it connects via wireless Internet, Bluetooth or through an Ethernet cable, and its many functions are categorized into three tabs: Tuner, System Info and Control...more
    Cloud OC download
  • Hotkey OC
    GIGABYTE Hotkey OC allows users to create and save various profiles that can be adopted for different benchmarks. Hotkey OC then allows users to jump between these profiles on the fly so that the best profile for each segment within the benchmark can be used to optimize scores and boost overall performance. For example, when running 3DMark 06, the 1st profile might be optimized for graphics, and can be used for the first two graphics tests, then, the next two tests can utilize the 2nd profile which might be optimized for CPU tests, and one could jump back to the 1st profile again for the final two graphics (shader) tests...more
    Hotkey OC download
  • Intel® Core i7/ Core i5 LGA 1156 Processors



    The Intel brand new computing architecture based on the innovation of micro-architecture transforms 3-chip solutions to a 2-chip platform. The next generation Intel® Core i7/ Core i5 ™ processors with LGA1156 package integrate graphics and memory controller to support dual channel DDR3 memory. Supporting Intel Turbo Boost technology and Hyper-Threading Technology, Intel® Core i7/ Core i5 ™ processors provide the overwhelming performance with optimized power efficiency.
  • DDR3 2600+ Support
    Intel Core™ i7/ Core™ i5 processors delivering native support for DDR3 memory up to 2600+MHz by the enhanced design of GIGABYTE, Intel Core™ i7/ Core™ i5 processors feature the memory controller integrated directly into the processor die, rather than as part of the Northbridge as in previous generations, allowing for faster memory performance.
    * Please refer "Memory Support List" for memory support information
  • Smart TPM - A smarter , better way to protect your data
    TPM function is optional due to different regional policy
    GIGABYTE Smart TPM provides the industry's highest level of data protection with 2048 bit hardware encryption. Smart TPM allows users to store their digital key on a USB thumb drive. In addition, Smart TPM allows users to lock the protected data remotely using a Bluetooth® enabled mobile phone.
    Note: GIGABYTE motherboards do not include a Bluetooth® receiver; the addition of a 3rd party Bluetooth receiver is required.
  • eSATA/USB combo
    eSATA/USB combo ports provides significant convenience by supporting eSATA and USB devices in one port, and may not require additional power source when connecting devices through the applicable cable.
    *Whether additional power needed depends on eSATA/USB devices spec defined.
  • XHD (eXtreme HardDrive)-Accelerating hard drive performance with ease
    Accelerating system performance is made easy with the user friendly GIGABYTE eXtreme Hard Drive (X.H.D). GIGABYTE eXtreme Hard Drive (X.H.D) provides a quick and easy way to boost your hard drive performance simply by adding another hard drive.
  • AutoGreen- Greening your PC via Bluetooth cellphone
    AutoGreen technology can automatically save power by simply putting your PC in a state of sleep when your Bluetooth® cell phone is out of range of your computer.
    Note: GIGABYTE motherboards do not include a Bluetooth® receiver; the addition of a 3rd party Bluetooth receiver is required.
  • Multi-display support with ATI CrossFireX and NVIDIA SLI™
    P55A-UD4 supporting both ATI CrossFireX and NVIDIA SLI™ delivers the ultimate in graphics performance for gaming enthusiasts who demand the highest frame rates without compromising on resolution.

  • Thermal Design
    Inspired by the performance and sleek lines of today's modern racing vehicles, GIGABYTE's stylish thermal solution is designed for extreme performance and ultra coolness
  • Dolby Home Theater Support
    Delivers vivid surround sound for music, movies, and games, using two to eight speakers or any set of headphones.
  • Norton™ Internet Security
    Fast, comprehensive, and up-to-the-minute protection against online threats. It safeguards your computer, identity, and home network without slowing you down. It sets a new standard for speed and makes online shopping, banking, and browsing safer and more convenient than ever.
  • Windows® 7 WHQL Certified
    The motherboard has obtained WHQL (Windows Hardware Quality Labs) certification for Windows 7 from Microsoft®, setting the standard for future Windows 7 certified motherboards...more
  • ErP Lot 6 support
    The ErP (also known as Energy-Related Products Directive) is part of the European Union's environmental regulations policy. It is based on concern for the environmental as the proliferation of electronic devices continues, and how to improve energy efficiency for a better and greener life. GIGABYTE supports ErP and produces motherboards that help you effectively improve system efficiency.

* Die Begriffe HDMI, HDMI High-Definition Multimedia Interface, HDMI-Aufmachung (HDMI Trade Dress) und die HDMI-Logos sind Marken oder eingetragene Marken von HDMI Licensing Administrator, Inc.
* Das vorliegende Material dient nur zur Referenz. GIGABYTE behalt sich das Recht vor, ohne Vorwarnung Inhalte zu verandern oder zu entfernen.
* Die beworbene Leistung basiert auf den maximal theoretischen Werten der Chipsatzhersteller oder von Organisationen, die die Interface-Spezifikationen erstellt haben. Die aktuelle Performance kann je nach Systemkonfiguration variieren.
* Alle Trademarks und Logos sind Eigentum der Markeninhaber.
* Aufgrund der Standard-PC-Architektur ist ein Teil des Speichers fur die Nutzung des Systems reserviert und daher kann die aktuelle Speichergrose von der Speicherangabe abweichen.