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GIGABYTE GA-990FXA-UD3 R5 (rev. 1.0) AM3+/AM3 AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard

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  • AMD 990FX
  • FX / Phenom II / Athlon II
  • DDR3 2000(O.C.)/ 1866/ 1600/ 1333/ 1066

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

With a blend of performance, features, design and quality, the GIGABYTE GA-990FXA-UD3 R5 (rev. 1.0) motherboard is the ultimate platform for you to build an AMD processor based power house. Use it to take full advantage of the advanced AMD chipset technologies and Gigabyte’s innovations in power design, component selection, and thermal design.

Chipset determines your motherboard’s processor compatibility and expandability. Powered by AMD 990FX and AMD SB950 chipset, this motherboard supports AMD AM3+/AM3 series processors, and features up to four PCIe x16 slots allowing you to build 2-Way AMD CrossFire/NVIDIA SLI multi-graphics configuration for scalable gaming performance.

Gigabyte’s innovations ensure reliable daily computing and even smooth operation under heavy loading. 8+2 phase power design along with Digital Power design ensures robust and efficient power delivery. The Gigabyte exclusive Ultra Durable technology utilizes a range of design and components to ensure maximum durability, reliability and protection against humidity, power surges, electrostatic discharge, and even BIOS failure. The Realtek ALC1150 codec in concert with premium audio capacitors and dedicated audio hardware separation brings onboard audio far beyond your expectation to an amazing 115dB SNR. The USB 3.0 and SATA III will save you time while transferring large libraries of files, while two eSATA 6Gbps facilitates data backup. Additionally, this motherboard features thermally-optimized heat sink on the PWM area and chipset, enabling a cool look and cool operation under extreme loading level.

General information

Extreme Multi-GPU Support

Flexible graphics capabilities supported for either 2-Way CrossFire or 2-Way SLI action, delivering the ultimate in graphics performance for gaming enthusiasts who demand the highest frame rates without compromising on resolution.


General information

GIGABYTE Digital Power Engine

GIGABYTE Ultra Durable motherboards take advantage of an exclusive Digital PWM controller array, to deliver maximum and stable power to latest processors. Using digital controllers means that more precise power delivery to the motherboard's most power hungry and energy sensitive components is possible. This Digital Power system, with Precise Auto Voltage Compensation to make real-time adjustments and deliver a steady flow of power to the system, no matter the loading. This all new, digital power system provides enthusiast users with exceptional control over the overclocking potential of their GIGABYTE motherboard.


General information

Realtek ALC1150 115dB SNR HD Audio with Built-in Rear Audio Amplifier

The Realtek ALC1150 is a high-performance multi-channel High Definition Audio Codec that delivers an exceptional audio listening experience with up to 115dB SNR, ensuring users get the best possible audio quality from their PC. The ALC1150 provides ten DAC channels that simultaneously support 7.1-channel sound playback, plus 2 channels of independent stereo sound output (multiple streaming) through the front panel stereo outputs. Two stereo ADCs are integrated and can support a microphone array with Acoustic Echo Cancellation (AEC), Beam Forming (BF), and Noise Suppression (NS) technologies. The ALC1150 incorporates Realtek proprietary converter technology to achieve Front differential output 115dB Signal-to-Noise ratio (SNR) playback (DAC) quality and 104dB SNR recording (ADC) quality.


General information

High Quality Audio Capacitors

GIGABYTE Ultra Durable™ motherboards use high quality Nippon Chemicon ARE series audio capacitors. These professional audio capacitors deliver the highest quality sound resolution and sound expansion to create the most realistic sound effects for user experience.


General information

Dedicated Audio Hardware Zone

Separation on the PCB layer protects the board's sensitive analog audio components. This motherboard also features separated analog and digital ground to protect against Electromagnetic Interference (EMI).


General information

eSATA Ports for easy data manipulation on external devices

Featuring with two external SATA (eSATA) ports on rear panel, it provides smart setup and hot-plug functionality allowing easier data backup and content manipulation on external storage devices.


2x Copper PCB Design (2 oz Copper PCB)

General information

GIGABYTE's exclusive 2X Copper PCBs design provides sufficient power trace paths between components to handle greater than normal power loads and to remove heat from the critical CPU power delivery area. This is essential to ensure the motherboard is able to handle the increased power loading that is necessary when overclocking.

Humidity Protection with New Glass Fabric PCB

General information

There is nothing more harmful to the longevity of your PC than moisture, and most parts of the world experience moisture in the air as humidity at some point during the year. GIGABYTE motherboards have been designed to make sure that humidity is never an issue, incorporating a new Glass Fabric PCB technology that repels moisture caused by humid and damp conditions. Glass Fabric PCB technology uses a new PCB material which reduces the amount of space between the fiber weave, making it much more difficult for moisture to penetrate compared to traditional motherboard PCBs. This offers much better protection from short circuit and system malfunction caused by humid and damp conditions.

General information

Long Lifespan Solid Capacitors

GIGABYTE motherboards integrate the absolute best quality solid state capacitors that are rated to perform at maximum efficiency for extended periods, even in extreme performance configurations. This provides peace of mind for end users who want to push their system hard, yet demand absolute reliability and stability.


General information

GIGABYTE Patented DualBIOS (UEFI) Design

GIGABYTE Ultra Durable™ motherboards feature GIGABYTE DualBIOS, an exclusive technology from GIGABYTE that protects arguably one of your PC’s most crucial components, the BIOS. GIGABYTE DualBIOS™ means that your motherboard has both a ‘Main BIOS’ and a ‘Backup BIOS’, making users protected from BIOS failure due to virus attack, hardware malfunction, improper OC settings or power failure during the update process.


General information

ESD Protection for USB and LAN

GIGABYTE motherboards raise the bar in terms of protecting your system, providing advanced electrostatic discharge (ESD) protection for both your Ethernet LAN and USB ports, both common sources of ESD-related failures. Each LAN and USB port is paired with a dedicated protection filter that can withstand high electrostatic discharges, protecting your system from common electrical surges and even direct lighting strikes.


Power Failure Protection with Anti-Surge IC

General information

GIGABYTE Ultra Durable™ motherboards also feature special anti-surge ICs that protect your motherboard, and your PC from any surge in power delivery that may occur, helping to ensure that your PC is equipped to deal with any potentially irregular and inconsistent power delivery.

All New Heat Sink Design

General information

GIGABYTE motherboards feature new heat sink designs that offer uncompromisingly efficient cooling on key areas of the motherboard including the PWM area and chipset (PCH). GIGABYTE motherboards offer cooling support of the crucial PWM area so even the most aggressive and extreme configurations will be kept well within optimal thermal parameters.

General information

Dolby Home Theater Support

Delivers vivid surround sound for music, movies, and games, using two to eight speakers or any set of headphones.


General information

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.


Learn more about the GIGABYTE GA-990FXA-UD3 R5 (rev. 1.0)

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
Ownership: more than 1 year
Verified Owner
1/ 5
Planned Obsoliesence is bad

Pros: Worked fine for just over three years, no significant issues with expected performance or installation. 3 stars.

Cons: Died one month after the warranty ran out-no obvious cause. Minus 2 stars for a rating of 1

Other Thoughts: For capitalism to work, there must be good faith between participants. When things like this happen (and it is a common occurrence) faith is degraded. Will be going with another company next time.

Did you find this review helpful?
4/ 5
Works with Some Linux

Pros: This is a very good board when compatibility is not an issue. I'm not sure if compatibility issues are due to the board or the o/s.

Cons: Some operating systems seem to not correctly detect BIOS compatibility mode during install. This leaves USB failing due to missing firmware.

Other Thoughts: This board works great on Fedora 23, 26, and 27. This board works great with CentOS7. USB does not work under any Ubuntu of any version due to USB problems. However, there may be a catch to this...

My board is in BIOS compatibility mode because it replaced a failed motherboard with Windows 7 Pro...this version of Windows was installed on old style BIOS before UEFI became popular. All drivers are BIOS type and not UEFI partitions.

I've found that at times Live DVDs work, but fail to appears that the failure of USB under Ubuntu is because the installer is mandating UEFI firmware and the USB is not getting the firmware. Ubuntu should not be installing UEFI requirements on a system in BIOS compatibility mode, but it does anyway. Perhaps this is because of a defect in how the motherboard reports to the installer program, or perhaps this is because of a defect of Ubuntu detecting a system which can use UEFI, but ignoring that it is in pure BIOS compatibility mode. I can't test without wiping out my Windows install.

Someone with USB issues may want to try to confirm the motherboard is in UEFI mode and that no disk is using BIOS compatibility partitions. I suspect all older software which works with BIOS mode will work fine, and I suspect that mixing BIOS and UEFI modes will fail.

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Ownership: more than 1 year
Verified Owner
2/ 5
none of the USB 2.0 ports are working under Linux OS or Linux Live USB

Pros: it's working, sort of

Cons: USB 2.0 ports on back and front are not working at all - Linux could not see it. My USB keyboard and mouse don't work in all usb 2.0 ports. However they do work when plugged into USB 3.0 ports (both front and back).

Other Thoughts: I bought this board in January 2016 but just built a AMD Rig using this board today. Very excited but only to find this annoying issue. I built more than a dozen Intel/AMD rigs, mainly using MSI boards and they all work OK. This GIgabyte board is supposed to be mid to high end, yet this is the first time I have issue with a MB. First Gigabyte MB and it let me down. Disappointed.

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Ownership: 1 month to 1 year
Verified Owner
4/ 5
Gigabyte GA-990FXA-UD3 R5

Pros: Great board. Used in a Win7 setup.

Cons: Submitted paperwork for rebate but never received it. Emailed rebate company, but no response.

Other Thoughts: Would have given 5 stars, but did not receive rebate.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
1/ 5
do not buy

Pros: - .

Cons: this mobo crashes all the time and goes into reboot loop with a patent dual bios that DOES NOT work

Did you find this review helpful?
Manufacturer Response:
Dear Customer,

Thank you for your comments. We apologize for your difficulty with your GIGABYTE product. Please contact us at with the case number 144922 in the e-mail subject line. We will provide personalized service and analysis to help solve your issue ASAP. If the matter is urgent, please send us your contact number, and we will contact you.

Ownership: 1 month to 1 year
Verified Owner
2/ 5
Good Build, but Poor Peripherals

Pros: - Solid build and feel
- Stable overclocking

Cons: - USB3 ports seem like their going out, maybe 6 months in.
- Tech Support is USELESS! [to be fair, so is MSI's]
- Audio's not that great - even with the Dolby software I finally found, months later xP
- Setting up Load Order in BIOS is a little more convoluted that it should be.
- BIOS layout not optimized; mouse support virtually non-existent.
- Using the top most PCI slot will have the card [sound card, in my case] touch the South Bridge!

Other Thoughts: -When navigating the BIOS, the mouse cursor moves so slow that you basically are forced to use keyboard.
-Tech Support was a joke and doesn't listen to you, and their support site is in broken English -_-

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great motherboard, best quality I have seen yet!

Pros: Lots of options to connect hardware, is physically heavy (dense) and feels solid when lifted. When mounted in case (CoolerMaster HALF 912) all holes centered, was square to sides and backplane. This is the best quality motherboard that I have yet to build and I expect that it will last quite a bit longer than the one it replaced (ASUS)...

Cons: One small gripe - user manual was not clear on BIOS / UEFI options, installing a non-microsoft operating system (Linux Mint) was a bit of a challenge.

Other Thoughts: Discrete Audio circuit was a good idea especially if one is connecting up to a bigger sound system. The clarity is observable when compared to a non- discrete type. To check, select a quiet space on a track and amplify the output. You should only hear the noise produced by amplification, and this board delivers just that.

Installing Windows 10 or Linux (once the BIOS / UEFI options were clear) was exceedingly quick on the Samsung 850 EVO drive. Windows / Linux loaded complete in less than 30 seconds, even faster when the source files were moved to a USB3 drive versus DVD.

Overall - this is one of the best boards I have ever used, and it really does make a difference when you go with a top end Gigabyte product.

1 out of 1 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Gigabyte GA-990FXA-UD3 R5 MoBo

Pros: Works fine, installed Linux Mint 18.1 Cinnamon X64 bit, A-OK !!
But the user must select/deselect features in BIOS before initial OS install.

Cons: I don't like Mail in Rebates, as they usually require cutting the vendors box to pieces for the UPC code label.
I prefer to keep the vendors box intact & use it for storage of parts, disks, manuals, etc.

1 out of 1 people found this review helpful. Did you?
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