Questions? Feedback? powered by Olark live chat software
Subscribe to our Super Special mailing list
Buy Now, Pay Later with Aria and V12 Finance!

MSI 990XA-GD55 AMD 990X (Socket AM3+) DDR3 PCI-Express ATX Motherboard

Stock may vary from item pictured. Retail pictures do not guarantee retail products.

AM3+ Support, AMD 990FX Chipset, ATX Form Factor, DDR3 2133(OC)/1866/1600/1333 (max 32GB), 2x USB3.0, 8x USB2.0, 6x SATA 6Gb/s, 2x PCI-E x16 (single at x16, dual x8/x8), Supports NVIDIA SLI/CrossFireX Technology, 8 Channel HD Audio.

This item is currently discontinued and at present, we have no replacement on order.
Quickcode: 53359  
Stock code: MBD-AM39-990XA-GD551
Manuf. code: 990XA-GD55
Cust. Rating:   Read reviews.
Remind me by Mail - Your mailaddress:


Please be aware. A BIOS flash to the latest may be necessary to allow the use of the latest AMD FX "Piledriver" CPUs. Please contact Customer Service or our Sales team for more info.

Onboard PC audio gets better! MSI is the first to implement the most high-end HD Audio codecs available. Don’t be fooled by other inferior audio solutions onboard (sometimes you can’t even find the driver!) Only MSI offers the Loss-less 24-bit/192KHz HD Audio function with an incredible 109 SNR dB value to provide the most clear & vivid HD audio quality and support 7.1 channels surround sound playback with a 2-channel independent stereo output (multiple streaming) through the front panel 3.5 inch phone jack.

AMD CrossFireX™ is the ultimate multi-GPU performance gaming platform. Enabling game-dominatig power, AMD CrossFireX technology enables two or more discrete graphics processors to work together to improve graphics performance. AMD CrossFireX technology allows you to expand your system’s graphics capabilities. It allows you the ability to scale your system’s graphics horsepower as you need it, supporting up to four AMD Radeon™ HD graphics cards, making it the most scalable gaming platform ever. With an AMD CrossFireX gaming technology, the traditional graphics limitation exists no more, allowing you to enjoy higher performance as well as visual experience.

3TB+ Infinity is not only breaking through the limit of traditional BIOS, but also enhancing the utilization of hard drives efficiently. In addition to supporting the latest 3TB hard drives, MSI 3TB+ Infinity technology can use the 3TB hard drive as boot disk when installing a 64-bit operating system. Compared to competitors, MSI 3TB+ Infinity is an industry-leading technology which substantially presents an advantage of development and application in the future.

SLI technology allows using multiple Nvidia graphics cards in a single computer system with a mainboard equipped with an nForce SLI MCP. Users need an a mainboard with two PCI-Express 16x graphics slots and two matching GeForce graphics cards which are "SLI Ready". Most NVIDIA's PCI-Express graphics cards starting from the 6600 GPU can enjoy the benefits of SLI.

SATA 6Gb/s provides double the bandwidth of traditional SATA 3Gb/s, and increases the data transfer rate between your mainboard and internal storage devices, such as 7200RPM HDDs, 10000RPM HDDs and SSDs. It’s also the current trend for upcoming high-speed internal storage devices to to break the existing bottleneck of a PC’s performance.

Warranty Information:

Manufacturer msi
Warranty Type Manufacturer via Aria
Manufacturer Website
Warranty Period (yrs)3

Comments, Questions & Reviews:

Latest...CommentsQuestionsReviewsWrite new...

Question  Overclocking by Jamie

This motherboard allows overclocking, right?

Answer by thomasr on Thursday, August 1, 2013

This is compatible.

Thank you.

Question  Question by Bryn

Will this work with the FX 8350? If not, can you recommend a cheapish motherboard that will work in a gaming rig with my FX 8350 and a Radeon HD 7870 LE? Thanks

Answer by thomasr on Saturday, July 6, 2013

Yes this is compatible.


Question  CASE SIZE by windy2020

will this fit in a case this size CSE-MID-CSCITVAN

Answer by thomasr on Tuesday, February 5, 2013

This is compatible yes.

Thank you.

 Very good! by Joey

Just got this motherboard and I must say, it is very good. I bought this for SLI and it's working like a charm at the moment. The BIOS is very easy to use and everything easy to install due to it being ATX Form Factor.

If you need a great board for SLI then go for this!

226 of 457 people rated this review as helpful

Was this review helpful to you?