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Item#: N82E16813157281

ASRock 990FX Extreme3 AM3+ AMD 990FX + SB950 5 x SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS

  • AMD 990FX
  • FX / Phenom II / Athlon II / Sempron 100 Series
  • DDR3 2100(OC) /1866

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Supporting socket AM3+ and 8-Core CPU, this board is designed to build up the most powerful system and deliver the most demanding technology for advanced users. Just enjoy next generation computing with ASRock 8-Core CPU ready motherboard.

100% Japan-made high-quality Conductive Polymer Capacitors with Digi Power provide buttery smooth, efficient and stable power solution. There's also ASRock's exclusive XFast family including XFast USB, XFast LAN, and the newest member – XFast RAM, which remarkably buffs up the system's performance while extending your HDDs or SDDs lifespan at the same time. This ASRock AM3+ 990FX Motherboard has got just about everything you could wish for build a perfect system around.


  • newegg XFast RAM - Fully Optimize Memory Usage It fully utilizes the memory space that cannot be used under Windows 32-bit OS. ASRock XFast RAM also shortens the loading time of previously visited websites, making web surfing faster than ever. And it also boosts the speed of Adobe Photoshop 5 times faster. Another advantage of ASRock XFast RAM is that it reduces the frequency of accessing your SSDs or HDDs in order to extend their lifespan.
  • newegg XFast LAN Technology ASRock XFast LAN is a smart productivity tool to help you manage your priorities of internet applications, simplify your digital life and accomplish more. The innovative features include: Internet Application Prioritization, Lower Latency in Game, Traffic Shaping and Real-Time Analysis of Your Data. It's the smartest way to control your web programs.
  • newegg ASRock XFast USB Technology - Faster Than Your Imagination! ASRock XFast USB Technology redefines the new standard in high performance computing. Proving once again to be the pioneer in motherboard industry, ASRock XFast USB Series Motherboards integrate with the latest XFast USB Technology which delivers the world's fastest USB data transfer speed. The ASRock XFast USB technology can boost USB 3.0 performance up to 5X faster!
  • newegg Digi Power More Precise, More Efficient. By adopting digital pulse-width modulation (PWM), the ASRock motherboard can provide CPU Vcore voltage more efficiently and smoothly. Compared to analog PWM, digital PWM can optimize the CPU power solution and provide a proper and stable Vcore for the processor.
  • newegg Graphical UEFI – The Revolutionary BIOS Interface Unified Extensible Firmware Interface (UEFI) is a revolutionary BIOS utility which offers tweak-friendly options in an advanced viewing interface. Compared with traditional BIOS design, the latest UEFI utility provides lots improved functions. The major features of UEFI include: graphical visual experience, mouse enabling and support for 3TB bootable HDD.
  • newegg AXTU - The All-in-1 Tuning Software ASRock Extreme Tuning Utility (AXTU) is an all-in-one software to fine-tune different features in a user-friendly interface, which includes Hardware Monitor, Fan Control, Overclocking, OC DNA and IES. In Hardware Monitor, it shows the major readings of your system. In Fan Control, it shows the fan speed and temperature for you to adjust. In Overclocking, you are allowed to adjust the CPU frequency, ratio and some voltages for optimal system performance. In OC DNA, you can save your OC settings as a profile and share with your friends. Your friends then can load the OC profile to their own system to get the same OC settings. In IES (Intelligent Energy Saver), the voltage regulator can reduce the number of output phases to improve efficiency when the CPU cores are idle without sacrificing computing performance.

Learn more about the ASRock 990FX Extreme3

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the ASRock 990FX Extreme3

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  • Jason H.
  • 1/28/2016 3:48:16 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggsJust Ok Entry Level Product.

Pros: Lots of fan headers.
Rear USB 3.0
Easy to install and setup.

Cons: No USB 3.0 front header witch is standard on most other brands.
Sketchy 8 core support.
Lacks bios features common to most other brands

Other Thoughts: I'll buy MSI or Asus in the future.
If you buy ASRock go for top of the line not the budget boards.

Manufacturer Response:

Dear Jason,

Thank you for purchase and review.
Mainboard comes with 2 x USB 3.0 at rear I/O but not front header.
For mainboard's specification, please visit link below.

If you have any technical support inquiry, please contact us at
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email:

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

  • Josue R.
  • 1/4/2016 1:32:44 PM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsFreezes

Pros: its adequate when it doesn't freeze.

Cons: Every time i try to run AutoCAD, it freezes for about 2 minutes. nothing responds, not even right clicking the desktop. if i right clicked on the desktop in a bunch of places after it unfreezes all the right clicks i did appear really fast and only the last right click remains, then it runs fine until it freezes again. no matter if AutoCAD was already loaded and closed out, if i try to load it again it will freeze. it'll randomly freeze when watching a video and acts like its skipping loop.

Other Thoughts: Running the latest v1.9 firmware. I've disabled every smart cpu feature in the BIOS (UEFI), I've enabled every feature. I've used 1 memory slot only. used all slots. no matter what setup i use, it continues to freeze. It's done it ever since i bought it in 2013. hasn't gotten worse, but hasn't gotten better. the only reason that i never wrote a review is because i trashed the computer in the closet only to resurface recently. tried every version of windows from 7 to recently 10, freezes on all of them.
it says on the website that the FX-8350 is compatible since V1.50. very unpleasant experience. wish i could return this for another because it feels like a waste of money.

Manufacturer Response:

Dear Josue,

We sincerely apologize for any inconvenience this may have caused you.
Please load the BIOS setting default.
Check the CPU is not overheating.
If possible, test with another VGA card and memory to check if the symptom still occurs.

If you have any technical support inquiry, please contact us at

Thank you

ASRock Support
Tech Support Email:

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

  • Corey M.
  • 1/4/2016 8:53:36 AM
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsDecent budget board

Pros: It has ran my 8350 FX Black edition for 2+ years now

Cons: Weak VRM but it's manageable. Like other reviewers have mentioned, this board isn't exactly compatible with the 8350 FX as it was initially advertised. I had to disable some settings in the BIOS, one of them being the turbo feature, to get this board to stop throttling when the temperatures became too hot. Also there aren't any USB 3.0 connections for the front of the case.

Other Thoughts: This board has handled a 8350 FX paired with Radeon 7970 and then GTX 970 quite well considering it's technically not compatible with that CPU. I've played countless games on it with hardly any problems after fixing the throttling. However if you have the money then definitely buy a better motherboard than this one to get the most out of your CPU.

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1 out of 5 eggsNo longer works properly

Pros: It supports SLI at a reasonable price. Plenty on USB ports.

Cons: After using this board lightly for a year it will not longer wake up or power back on. The only solution is to flip the switch on the power supply, wait 20 minutes, flip the PSU switch back and hit the power button. I've replaced all other components and clean installed the OS. The issue persists. I cannot recommend ASRock after this. Really disappointing.

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

  • Bryan G.
  • 12/28/2015 8:09:32 AM

2 out of 5 eggsWorked for 9 months then died

Pros: Had LEDS on board to indicate the specific problem, a very nice feature for identifying problems

Cons: Red LED for CPU indicating no CPU readings - a very common error for this board (do internet search). Worked for 9 months then stopped. Shows red LED for CPU. Replaced CPU and still red LED. Trouble shot RAM, video card, re-set BIOs, power supply tested, looks like, for whatever reason, the CPU socket/circuit no longer functions. After search for hours on internet, there appears to be many with similar problems.

Manufacturer Response:

Dear ASRock Valued Customer Bryan,

We appreciate you taking the time to post your feedback and verification result on 990FX Extreme3.
And we apologize for the inconvenience this has been causing you.

For this issue, we provide the following suggestions to you for checking your system.
1. Please refer to user manual page 29 to clear CMOS for testing.
User manual link:
2. Re-install CPU and power supply for testing.
3. Install memory module to other DIMM slot for verifying.
4. Only install the necessary devices including CPU, one stick memory module, VGA card and PSU to check.
5. If possible, please change another CPU, memory module or PSU for double-check.

If you have any technical support inquiry, please contact us at
We'll assist you shortly.

Thank you very much!

Have a nice day

1 out of 2 people found this review helpful. Did you? Yes No

  • ez T.
  • 12/24/2015 9:47:35 AM

1 out of 5 eggsgood board, but has some problems with it

Pros: easy set up...runs good with lot of problems

Cons: i think it is overheating at time , shuts down at times......USB ports working , but in device manager it tells me its not working time it disconnect my mouse...also on and off button stopped working, i have to use button on mother board to turn it on.....

Other Thoughts: no...they should really give me another motherboard to replace this one...had it for more then year

Manufacturer Response:

Dear ASRock Valued Customer,

Thank you for taking the time to write the review on the 990FX Extreme3.
We sincerely apologize for any inconvenience this may have caused you and are sorry to hear about the issues that you are experience in this model.
Please refer to the following suggestions to do check your system firstly.
About overheat issue:
1. Update the latest BIOS P1.90 from our official website and load BIOS default settings to try.
BIOS Download link:
About the method of flashing BIOS, please click "How to Update" to get the detail process and do BIOS update.
2. Re-install CPU cooler and make sure thermal grease is spread on CPU properly.
3. Set "CPU FAN" and "Chassis FAN" at full speed under BIOS to verify the result.

About USB port issue:
1. Please load BIOS default settings to try.
2. Please re-install AMD All in 1 driver and Etron USB3.0 driver from our download zone and then double-check the device manager again.
Download Zone link:
3. Try other USB2.0 or USB3.0 ports for verifying.
4. If possible, please try other USB devices for clarifying.
If the symptom still exists, please capture the picture error message or symptom in device manager, and then mail it to ASRock support mail and also provide the detail system configurations to us. We'll assist you shortly.

Thank you for choosing ASRock and all your feedback.

Have a nice day

0 out of 2 people found this review helpful. Did you? Yes No

  • Anonymous
  • 11/2/2015 11:17:30 AM
  • Ownership: more than 1 year

2 out of 5 eggsWatching my first rig die

Pros: Was easy to build on for a first timer
It worked like a motherboard should.

Cons: First one fried itsself and a CPU
Then Ive ran this one for well over a year and...

I feel like I'm slowly watching my baby die.
Every day the past week I've have to preform CPR to the ram just to get this thing to boot every day.
It seems like the slots for the ram have worn out with age somehow.

Some days the screen just stays black, other days it just wants to read one stick of ram, and just now, it took 2 hours of CPR to get my baby to boot. It's even starting to forget that it had an SSD pluged into it.

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

  • Anonymous
  • 10/23/2015 3:44:45 PM
  • Ownership: 1 day to 1 week

1 out of 5 eggsDOA

Pros: Dr. Debug is nice. Helped me figure out the board was defective.

Cons: Board would not post, Dr. Debug code 00, cpu was fine, checked ram on another system (was on the supported list), checked sata cables on another system, checked gpu on another system, and checked power supply. Newegg promptly issued a RMA.

Manufacturer Response:

Dear Valued ASRock Customer,

We sincerely apologize for any inconvenience this may have caused you.
Please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power, remove all components from mainboard.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with single memory module.
• Reseat video card firmly and 6+6 PCIE power (if applied)..
• Plug the 24 + 8 or 4 pins ATX power.
• Connect the chassis power switch to mainboard.
• Turn on the power to check if its post or check the last code shown on board.

If you have any technical support inquiry, please contact us at
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email:

0 out of 2 people found this review helpful. Did you? Yes No

  • Anonymous
  • 9/26/2015 7:19:12 PM
  • Ownership: more than 1 year

2 out of 5 eggsWhile it worked it was ok, then it died

Pros: -It worked ok

Cons: -Many other boards are cheaper and better
-Burnt out faster than any other part

Other Thoughts: -I would not purchase the cheaper boards from Asrock. If you to buy from them, go for the pricier ones for quality

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

  • Scott M.
  • 9/21/2015 7:10:39 AM
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsDecent at stock settings

Pros: Cheap
Has dual x16 PCIE Slots
Onboard Audio Works Well
990 Chipset
Can technically run 8 cores
Good fan power connector placement with multiple PWM connectors

Cons: 4+1 VRM that can't take much heat, throttles early
Sketchy 8 core support
No USB3 header
Gets VERY hot if you even think about overclocking

Other Thoughts: I replaced a Gigabyte board with this that was having all sorts of stability issues just to get it done quickly and cheaply. It does the job, but is not a good overclocker at all. I was able to squeeze my Thuban 6 core from 2.8 to 3.6ghz and that was it and the VRM would get very hot at that speed and throttle everything down. Left it at 3.0 after awhile and it ran a little hot but not bad, but not fast enough TBTH.

Fast forward to now, I picked up a FX8350 and a new case. With 8 case fans and a big CM212Evo in a push/pull configuration I can get the FX8350 stable at stock voltages but I am running it undervolted to give the VRM a little extra room and it still is stable at 4.0ghz. I am running it as is for now but will be picking up a new mobo with a better VRM setup and actual 8 core support.

All that said, this is a very good budget board for $90 after the rebate you can't beat it if you don't want to overclock and are running something that doesn't use as much juice as the FX even though I was able to eventually get mine stable.

Would probably go with the ASUS M5A99FX Pro R2.0 for a budget board if you are thinking of overclocking on a budget though. If you can spend the extra coin on the mobo I'd say go straight to the Extreme9 or the ASUS Crosshair.

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

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Item#: N82E16813157281
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