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Item#: N82E16813131736

ASUS Sabertooth 990FX AM3+ AMD 990FX + SB950 SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS

  • AMD 990FX + SB950
  • FX / Phenom II / Athlon II / Sempron 100 Series
  • DDR3 1866/1600/1333/1066
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TUF series, which stands for The Ultimate Force, delivers a “tough” image. With its unique design and high quality components (military-standard), TUF series is built for stability, all-round compatibility, and extreme durability.

The newest addition to the TUF Series motherboards is the SABERTOOTH 990FX based on the latest AMD’s top 990FX/SB950 chipsets. Known for their unrivaled quality and reliability in extreme conditions, the SABERTOOTH 990FX features the use of CeraM!X, an exclusive aerospace-grade cooling material that is extremely effective in conducting heat away from vital system components. Also onboard is ASUS’ Thermal Radar technology that consists of ten sensors located on vital motherboard components, which provides users the ability to actively monitor each one individually and automatically adjust fan speeds to ensure a high level of system stability without overheating. Besides six native SATA 6Gb/s ports and total four USB 3.0 ports, the SABERTOOTH 990FX also brings multi-GPU configurations through both SLI and CrossFireX to bring a brand new gaming style like you’ve never experienced before.

  • newegg AMD 990FX Chipset The SABERTOOTH 990FX supports the upcoming AMD FX AM3+ multi-core processors with up to 8-core native CPU cores and delivers better overclocking capabilities with less power consumption. It features AMD Turbo CORE Technology 2.0 and accelerates data transfer rate up to 5200MT/s via HyperTransport 3.0 based system bus. This motherboard supports AMD AM3 Phenom II/Athlon II/Sempron 100 series processors and AMD AM3+ CPUs in the new 32nm manufacturing process.
  • newegg CeraM!X - Heatsink Coating Tech. 50% larger area for heat dissipation with the revolutionary ceramics-coating technology! Innovative ceramics effectively conducts heat away from the system. It replaces traditional anti-oxidant to dissipate heat better with its microscopic irregular surface and enlarged area. Better cooling leads to overall improvement in system stability.
  • newegg TUF Thermal Radar - Real Time Temp Detection and Heat Removal TUF's Thermal Radar monitors temps in critical parts of the motherboard in real time, automatically adjusting fan speeds to make sure the system maintains high stability without overheating. It consists of multiple sensors for various components on the motherboard, giving users the ability to monitor each one individually. The Thermal Radar automatically calculates ideal fan speeds based on different parameters selected by users for each component, keeping everything cooler and longer lasting.
  • newegg DIGI+ VRM - a New Digital Power Design Era The new ASUS DIGI+ VRM design upgrades motherboard power delivery to a digital standard. The 8+2 digital architecture provides the highest power efficiency, generating less heat to enhance longer component lifespan and ensure minimal power loss. With ASUS DIGI+ VRM, users can easily adjust power phase performance, enabling new PWM voltage and frequency modulation controls. Digital 8+2 power phase design also expands the modulation spectrum for improved stability and lower VRM switching noise by dynamically detecting system load, empowering users with superior flexibility and perfect precision to ensure optimized performance, extreme system stability, and greater power efficiency.
  • newegg UEFI BIOS - Flexible and Easy BIOS Interface ASUS UEFI BIOS offers a user-friendly interface that goes beyond traditional keyboard-only BIOS controls to enable more flexible and convenient mouse input. Users can easily navigate the UEFI BIOS with the smoothness of their operating system. Quick and simple overclocking and setup sharing is facilitated by the F12 hotkey BIOS snapshot feature. The exclusive EZ Mode displays frequently-accessed setup info, while the Advanced Mode is for experienced performance enthusiasts that demand far more intricate system control, including detailed DRAM information.
  • newegg TUF Components (Alloy Choke, Cap. & MOSFET; Certified by Military-standard) Get rugged performance even in the most challenging conditions with robust TUF chokes, solid capacitors, and MOSFETs--certified through third-party, military-grade testing. TUF Chokes, also known as the “Alloy Choke”, is a made of a compound of various types of metal instead standard iron, enables the support of up to a massive 40A of rated current, 25% higher than conventional component. Furthermore, the single piece packaging also eliminates the emission of vibration noise, delivering superb characteristics as well as durability under extreme conditions.

Learn more about the ASUS Sabertooth 990FX


Sabertooth 990FX

Supported CPU

CPU Socket Type
CPU Type
FX / Phenom II / Athlon II / Sempron 100 Series


AMD 990FX + SB950


Number of Memory Slots
Memory Standard
DDR3 1866/1600/1333/1066
Maximum Memory Supported
Channel Supported
Dual Channel

Expansion Slots

PCI Express 2.0 x16
3 (dual x16 or x16, x8, x8)
1 (x4 mode, black)
PCI Express x1
PCI Slots

Storage Devices

SATA 3Gb/s
SATA 6Gb/s
6 x SATA 6Gb/s
6 x SATA 6Gb/s port(s) support Raid 0, 1, 5, 10

Onboard Video

Onboard Video Chipset

Onboard Audio

Audio Chipset
Realtek ALC892
Audio Channels
8 Channels

Onboard LAN

LAN Chipset
Realtek 8111E
Max LAN Speed

Rear Panel Ports

1 x PS/2 keyboard/mouse port
USB 1.1/2.0
10 x USB 2.0
USB 3.0
2 x USB 3.0
IEEE 1394
1 x IEEE 1394a
1 x eSATA 3Gb/s
1 x Power eSATA 3Gb/s
1 x Optical
Audio Ports
6 Ports

Internal I/O Connectors

Onboard USB
2 x USB 3.0 + 4 x USB 2.0
Onboard 1394
1 x 1394a
Other Connectors
1 x COM port(s) connector(s)
1 x CPU Fan connector(s) (4 -pin)
4 x Chassis Fan connector(s) (3 x 4 -pin, 1 x 3 -pin)
1 x Optional Fan connector(s) (4 -pin)
1 x S/PDIF out header(s)
1 x 24-pin EATX Power connector(s)
1 x 8-pin ATX 12V Power connector(s)
1 x Front panel audio connector(s) (AAFP)
1 x System panel(s) (Q-Connector)
1 x MemOK! button(s)
1 x Clear CMOS jumper(s)

Physical Spec

Form Factor
12.0" x 9.6"
Power Pin
24 Pin


TUF CeraM!X Heatsink Coating Tech. - 50% Larger area for heat dissipation with the revolutionary ceramics-coating technology

TUF Thermal Radar - Real Time Temp Detection and Heat Removal

DIGI+ VRM - Herald the Arrival of a New Digital Power Design Era

TUF Components [Alloy Choke, Cap. & MOSFET; Certified by Military-standard] - Certified for Tough Duty

E.S.P. [Efficient Switching Power Design] - Optimal power efficiency for key components

Manufacturer Warranty

5 years limited
5 years limited

Quick Info


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years

Customer Reviews of the ASUS Sabertooth 990FX

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  • Donald K.
  • 3/12/2014 8:15:38 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsI see a pattern here! ASUS*

Pros: Worked great for over a year THEN BAM! One ram slot went out. I got the regular blah blah supprt and was willing to deal with the loss of 4gb of 16gb ddr-3 just so I didn't have to RMA the build and within 2 months all ram slots were dead... Still fighting for RMA# WITH ASUS!


Other Thoughts: I now need two mobos for an AMD FX-8150 and an AMD Phenom Quadcore.... Remember this is not neweggs fault * Newegg has helped me by sending my original invoice and serial that Asus so badly needs even though they have all that and more then enough to issue an RMA# on a known faulty item! Shame on you ASUS !!!! i ALSO TOOK A LOOK AT THE RETURN POLICY AS I AM LOOKING FOR NEW MOBOS AND SEE ASUS DOESN'T EVEN HAVE STANDARD RETURN ON THE SABERTOOTH R2.0 AS DOES GIGABYTE I noted in a side by side of the gigabyte fx supported models and the sabertooth r2.0 !?

Manufacturer Response:

Dear Valued Customer,

I am sorry that you are having issues with the motherboard. At your earliest convenience, please contact me through email, and we can discuss this case further. Within the email, please include the serial number of the motherboard. 3534719.


ASUS Customer Loyalty

Did you find this review helpful? Yes No

  • Donald K.
  • 3/12/2014 12:04:16 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsMixed emotions...

Pros: Easy install and setup. Bios a breeze to flash and lots of options...Literally can overclock itself.

Cons: Must force DDR-1600 ram to run and 1600 in bio or runs at 1333 by default. After more then a year had to call tech support after losing use of one memory slot and within 2 months all 4 are now not reading ANY DDR- 1333,1600,or any other system memory. Upon calling Asus support I was told this could not be trouble shot and must RMA as this "mem ok" feature is a wide spread issue* Sadly even after excepting the loss of the initial ram slot and not wanting to tare down the entire system I have to do just that.

Other Thoughts: I think I will stick to what works and let others try the new items and see the reviews! Until this I was more leaning towards OTHER mobo's AS MY LAST 5 BUILDS WERE NOT ASUS so I am very much looking forward to what the Sabertooth 990FX 2.0 has to offer per "reviews" I WILL HAVE THIS UNCERTAINTY EVEN AFTER A YEAR AS TO WHAT MAY HAPPEN....Now I have an AMD FX-8150 chip and an AMD Phenom quadcore both AM3+ so looking on newegg now and decided to write this just incase I could help anyone else in this regard. Don't think it is your ram as I had several new boxed ram new here to try so just call and get support or RMA.

Did you find this review helpful? Yes No

  • Will R.
  • 2/18/2014 8:48:57 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsHad 2 years now

Pros: This board is worth every penny. For the active gamer like myself or anyone who wants a build that will last a good long while. Easy install, great Bios system, and you can download the Asus program that monitors board temperature and lets you toggle fan speed. I'm not going to list the specs of my build cuz the board is designed to function with the old and newer CPU's. Gives you all the room you need for your cards and has up to 5 fans you can plug directly into it.

Cons: None.

Did you find this review helpful? Yes No

  • Donald K.
  • 2/12/2014 5:56:57 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsJust a breeze ! Very durable !

Pros: One of the best and easiest builds for me to date ! Not to mention this MB is something that I would 5 egg all day ! Its amazing and does amazing things. Overclockability is a cake walk even for a newer tech or just a geek this mb coupled with the phenom quadcore or the FX-8150 both of which I have built this board really lets you get into the good part of playing with PC's or even just the durablity of this MB makes it worth every penny and after having it for awahile I realize what an amazing board it really is ! 5 eggs ! I think I might get the newer version ofthis same board for myself ! I think there are two or three more Sabertooth boards but all have more and more things to boggle the mind ! ;) Love this MB!

Cons: nope I can not fine one issue to call a con ! period *

Other Thoughts: again like the gigabyte ud3h I still have to set the ram to 1600 or anything over 1333 for some reason,most of the boards I have used will not about set to 1600 or ablove . It has to be done in bios or default is 1333mhz which isn't what I want when the ram I have is 1600 mhz or above. I don't know anyone that wanst to go slower when its not nessessary...

Did you find this review helpful? Yes No

  • Donald K.
  • 2/3/2014 12:12:07 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsVery impressive MB !

Pros: Very easy to use. Bios is to die for ! The durability is dumbfounding. You can overclock until your hearts content without fear of breaking anything. Worst case you take out battery, unplug power supply from mb ,and go to it again ! lol I love the Gigabyte mb I have got from newegg durable series but, this one takes the cake*

Cons: One of my memory slots is not working after first year but, I AM TOO LAZY TO REMOVE MB TO REPLACE! LOL I had 16bg now only showing 12 ddr3 1600 ripjaw series OC. Why do we have to OC 1600mhz ram to get 1600mhz ? : / Anyone ?

Other Thoughts: The OC ability is amazing. I have theAMD- FX-8150 8-core and there is just not boundries as to what settings I can set and maintain* 4.1GHZ 34* W/O LOAD ...XFX r7770 pci-e card best_buy .. lol Sorry I was in a hurry !! Just an after thought do not use AOD+ ASUS AI Suite II software or AI Suite II software+ bios Digi-VRM / Evo at same time as it will cause cRAsh after crash and leave you wondering why . Use whichever you want just not together unless you are very experienced systems architect with OC XP.... Thanks for reading ! Thanks again Newegg !

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  • Robert K.
  • 12/27/2013 9:32:51 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsdissapointed results

Pros: Seemed to be the best choice at the time

Cons: I bought ASUS because I thought it was top of the line... not so much! I've had it just over a year and it has gone up in smoke.....

Did you find this review helpful? Yes No

  • 12/11/2013 5:32:59 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsBuild like a Tank!

Pros: It has been running 24/7 for over a year. With Win 7 Pro if I do not turn it off it just keeps on going. It has taken all my changes and equipment with out argument. I even put it in a 4U case. Stays cool with 3rd party heat sink 2x60mm rear exhaust, 2x80mm intake fans. We also use the PSU to exhaust the interior.

Cons: None that I am aware of other than a problem handling 1866 memory when using 4 slots and 32 gigs.

Other Thoughts: Would like more USB 3.0 outs, firewire and thunderbolt port onboard..

Did you find this review helpful? Yes No

  • Michael P.
  • 12/9/2013 7:15:27 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsGreat board if you get one that works, and lasts.

Pros: Worked great for about 6 months then all the ram slots except 1 died. This was the first of three 990fx based motherboards I've had in a 2 year period, and each has had a unique memory based problem. And judging by the reviews here, if it's not DOA, and if it doesn't fail on you, it's a great board. Mine still works, just with 1 stick of RAM.

Cons: Broke outside of the Newegg RMA period, and ASUS's RMA path is so abysmal I gave up on trying to swap it since I'm focusing on RMAing another ASUS 990fx based motherboard that I recently bought that after a month decided to reserve half my ram and refuse to run it in DDR 1866, even though it did so flawlessly for 30+ days. Some googling shows this is a known problem (search ram 7.92 usable), and the people who've fixed the problem did so by getting a replacement.

Other Thoughts: I expect more from a motherboard in this pricing tier. I don't want to point blame at ASUS as I have a i5 with a ASUS mb that's always ran great, and it runs the ram the 990fx boards won't, even tho they're on the QVL, correctly. Also you see tons of DOA comments in the Gigabyte and ASROCK reviews as well. It's something with the 990fx platform that's at fault.

ASUS's fault lies in their support being terrible. I'm a bigtime ASUS customer and everything was sunshine and rainbows until something broke. Trying to get a replacement is a real horror show, and they have a habit of sending out refurbs. Guess they have tons of them.

Did you find this review helpful? Yes No

  • Alan S.
  • 12/2/2013 7:23:41 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat Product

Pros: Great Board with tons of add-ons. Super fast and the coating on the parts looks cool.

Cons: None after a year of owning

Did you find this review helpful? Yes No

  • Brandon M.
  • 12/1/2013 4:24:03 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsJunk board with junk service

Pros: Looks cool

Cons: Died after 11 months of use, got an rma through ASUS and shipped it to them, got the board back and still does not work, on rma # 2.

Other Thoughts: when I called and asked ASUS what they replaced, all I got was, I don't know from customer service.

Manufacturer Response:


I would be happy to help. Please contact me through email, and we can discuss this case further. My email is Within the email, please include your RMA number and the serial number of the motherboard. Your reference number for this case is 3257127.


ASUS Customer Loyalty

1 out of 1 people found this review helpful. Did you? Yes No

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