GIGABYTE's leading 12 phase power VRM design utilizes the highest caliber components to provide unadulterated, smooth power delivery for the CPU. GIGABYTE's 12 phase power design enables better delivery of power to supercharge your system, giving power users unparalleled overclocking ability and lower temperatures to reach maximum performance levels.
The 12 phase power VRM has been designed and engineered to deliver fast transient response times through quick and seamless power delivery during extensive CPU loading variations. In addition, heat from the VRM is effectively reduced by spreading the load between the 12 power phases, resulting in a cooler and more stable platform.

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
Note: 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.

Charges iPad, iPhone and iPod Touch while PC Hibernates or even when shut down (off).

The GIGABYTE motherboards support the latest generation SuperSpeed USB 3.0 technology made possible through an onboard USB3.0 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 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.

* USB 3.0 10x performance is a maximum theoretical value. Actual performance may vary by system configuration.

Yet another onboard feature of GIGABYTE P55A motherboards are Marvell's new 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 P55A series 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.

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.

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

• Cooler than traditional motherboards
• Enhanced durability
• Improved energy efficiency
• Greater margins for overclocking... more

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

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.

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

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

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.

P55A-UD4 support Intel Core™ i7/ Core™ i5 processors delivering native support for DDR3 memory up to 2200+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

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 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.

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.

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.

The motherboard qualified for WHQL (Windows Hardware Quality Labs) certification of Windows 7 from Microsoft^®, setting the standard for future Windows 7 certified motherboards...more

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.