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Gigabyte 990XA-UD3 Motherboard AMD AM3 990X SB950 RAID SATA ATX Gigabit Ethernet LAN (rev. 1.0)

  • Supports newest AMD AM3+ FX/AM3 Phenom II series processors
  • Advanced 8+2 phase CPU VRM power design for AMD high-TDP CPU support
  • 3 PCI-E 2.0 interfaces for 2way AMD CrossFireX and SLI multi-graphics support
  • AMD SB950 provides 6 native SATA3 ports with superfast 6Gbps link speed and RAID 0, 1, 5, 10 support
  • Supports USB 3.0 with superfast transfer rates of up to 5 Gbps
The 990XA-UD3 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 USB3.0 controller, AMD 900 series motherboards allow 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 via AMD SB950 chipset, GIGABYTE AMD 900 series motherboards offer native 6 ports of next generation high speed data storage devices support with data transfer speeds of up to 6 Gbps with RAID 0, 1, 5, 10. The AMD 900 series motherboards 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. GIGABYTE's AMD motherboards are ready to support new generation of 32nm AMD AM3+ multi-core processors, delivering the very best platform for multitasking, multimedia and high performance gaming. This motherboard designs with Split Power Plane, 8+2 phase VRM to support AMD the latest 45nm AM3 PhenomII series processors, delivering the great performance enchantment to system and ultimate scalability hardware expending. Yet another onboard feature of GIGABYTE AMD 900 series motherboards are integrated the latest AMD SB950 chip for high-speed SATA Revision 3.0 compatibility, delivering 6 ports native superfast 6Gbps link speeds for twice the data transfer rates of SATA Revision 2.0 (3 Gbps) and RAID 0, 1, 5, 10 support. When used in RAID 0 (Stripe) mode, GIGABYTE AMD 900 series motherboards offer even faster data transfer rates of up to 4x the speed of current SATA interfaces.

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Extra Information


GraphicsYes AMD CrossFireX


Installed Processors (Max)0 (1)
Supported Processor ManufacturerAMD
Supported ProcessorsAMD AM3+ FX processors • AMD AM3 Phenom II processors • AMD Athlon II processors
Power Connector1 x 24-pin ATX main power connector • 1 x 8-pin ATX 12V power connector
PCI Express Slots5 slot(s) - 1 x PCI Express x16, 1 x PCI Express x16 (x8 mode), 1 x PCI Express x16(x4 mode) , 2 x PCI Express x1
PCI Slots2 slot(s) - PCI
DescriptionThe 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. 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. Delivering native support for DDR3 memory up to 2000MHz, GIGABYTE Ultra Durable 3 series motherboards allow users to easily reach higher memory frequencies at lower voltages; achieving higher memory performance with lower power consumption to run even the most memory intensive applications such as high-definition video and 3D games with ease. GIGABYTE strongly believes that in 2011, HD audio playback is a standard specification, and as such, we have made Blu-ray audio playback a standard for all of our motherboards. All of GIGABYTE's 2011 motherboards feature higher capability audio solution with 108dB Signal-to-Noise ratio (SNR) playback quality to deliver high-performance, multi-channel HD audio. SNR is a comparison of the amount of signal to the amount of noise such as hiss present in the signal (expressed in Decibels). A higher SNR equals a better audio experience. For example, 108dB, is a high audio specification, as this means the audio signal is 108dB higher than the level of the noise. Hybrid EFI Technology combines the benefits of GIGABYTE's mature BIOS platform including stability and compatibility with 3rd party products with 3TB+ HDD support from EFI technology, allowing GIGABYTE to offer the best of both worlds through a quick and easy BIOS update using GIGABYTE's @BIOS utility that is freely available from the GIGABYTE website. GIGABYTE DualBIOS is a patented technology that automatically recovers BIOS data when the main BIOS has crashed or failed. Featuring 2 physical BIOS ROMs integrated onboard, GIGABYTE DualBIOS allows quick and seamless recovery from BIOS damage or failure due to viruses or improper BIOS updating. In addition, GIGABYTE DualBIOS now supports 3TB+ (terabyte) hard drive booting without the need for partitioning, and enables more data storage on a single hard drive.
Model Name990XA-UD3
Product TypeMotherboard
Graphics Device
Graphics AdaptorYes AMD CrossFireX
Internal I/O Connectors
Cooling Fan Support1 x CPU Fan • 2 x System Fan • 1 Power Fan
Firewire Connectors1 x IEEE 1394a Header
Front Panel Connectors1 x Front Audio Header • 1 x Front Panel Header
S/PDIF Connectors1 x S/PDIF out Header
SATA Connectors6 x SATA 6Gb/s
Serial Connectors1 x Serial Port Header
TPM Header1 x TPM Header
USB Connectors3 x USB 2.0 • 1 x USB 3.0
Maximum Memory32GB DDR3
ChipsetAMD 990X SB950
Input/Output ControllerITE IT8720
RAID SupportedYes RAID 0, RAID 1, RAID 5, RAID 10, JBOD
SATA SupportedYes
Integrated NetworkRealtek RTL8111E
Network Speeds Supported10/100/1000Mbps
Dimensions30.5cm (W) x 24.4cm (L)
Rear Panel I/O Ports
Audio Line Out Ports6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/Side Speaker Out/Line In/Line Out/Microphone)
Firewire Ports1 x IEEE 1394a
Keyboard/Mouse Combo Port1 x PS/2 Keyboard or Mouse Port
RJ-45 Ports1 x RJ-45
S/PDIF Port1 x Optical S/PDIF-out
USB Ports8 x USB 2.0 • 2 x USB 3.0
Integrated SoundRealtek ALC889 codec • High Definition Audio • 2/4/5.1/7.1-channel • Support for Dolby Home Theater • Support for S/PDIF Out
BIOS2 x 32 Mbit flash • Use of licensed AWARD BIOS • Support for DualBIOS • PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b
JumpersClear CMOS jumper
Special FeaturesSupport for @BIOS Support for Q-Flash Support for Xpress BIOS Rescue Support for Download Center Support for Xpress Install Support for Xpress Recovery2 Support for EasyTune (Note 7) Support for Easy Energy Saver Support for Smart Recovery Support for Auto Green Support for ON/OFF Charge Support for Cloud OC Support for 3TB+ Unlock Support for Q-Share
System Requirements
Operating Systems SupportedMicrosoft Windows 7 • Vista • XP
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Standard Delivery
  • 2-5 Working Days
  • Insured Delivery Service
  • Free To UK Mainland
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  • Order Before 4pm
  • UK Mainland Only

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