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ASRock AB350 Pro4 AM4 AMD Promontory B350 SATA 6Gb/s USB 3.1 HDMI ATX AMD Motherboard

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Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • AMD Promontory B350
  • Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge, Raven Ridge and Pinnacle Ridge)
  • AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC)/ 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory*
  • AMD 7th Gen A-Series APUs support DDR4 2400/ 2133 non-ECC, un-buffered memory
  • * For Ryzen Series CPUs (Raven Ridge), ECC is only supported with PRO CPUs.

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

AB350 Pro4

  • ASRock Super Alloy
  • Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge & Raven Ridge)
  • Supports DDR4 3200+ (OC) (Ryzen CPU) / 2400 (A-series APU)
  • 2 PCIe 3.0 x16, 4 PCIe 2.0 x1
  • AMD Quad CrossFireX™
  • Graphics Output:HDMI, DVI-D, D-Sub
  • 7.1 CH HD Audio (Realtek ALC892 Audio Codec), ELNA Audio Caps
  • 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (SATA3)
  • 8 USB 3.0 (1 Type-C, 2 Front, 5 Rear)
  • Realtek Gigabit LAN

Armor Your VR Machine


Prepare yourself well to enjoy the impressive world of Virtual Reality. Before that, you have to make sure everything is qualified, including hardware, software and drivers. Motherboard is the key to connect every critical components and ASRock's VR Ready motherboards are definitely the one you're looking for. The premium qualify is assured by rigorous testing during development. The sturdy components and rock-slid performance makes you completely immersive in the VR scenario. Users can be assured to experience VR enjoyments without any compatibility problems.

Dual M.2 For SSD


One PCIe Gen3 x4 Ultra M.2 interface that pushes data transfer speeds up to 32Gb/s, and is compatible with ASRock's U.2 Kit for installing some of the world's fastest U.2 PCIe Gen3 x4 SSD. And the other one supports SATA3 6Gb/s M.2 modules.

USB Type-C


A latest reversible USB Type-C design that fits the connector either way.
AB350
Premium Power Choke
AB350

Compared to traditional chokes, ASRock's premium power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

Sapphire Black PCB
AB350

Pure black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.

High Density Glass Fabric PCB
AB350

High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

2oz Copper


It comes with 2 ounces copper inner layers, using only carefully selected copper materials for PCB layers, delivering lower temperature and higher energy efficiency for overclocking.
AB350

Digi Power


Unlike traditional motherboards that use analog power, this motherboard uses a next generation digital PWM (Pulse-Width Modulation) design, which provides CPU Vcore voltage more efficiently and smoothly, so that the stability and lifespan of the motherboard is greatly enhanced.
AB350

ELNA Audio Caps


Who says high quality audio is only available on high-end motherboards? ASRock applied ELNA audio capacitors on mainstream and entry-level motherboards! Compared with traditional solid caps, the leakage current of ELNA audio caps is merely 3uA. This is the key to reduce noise level significantly and satisfy even the pickiest audiophiles.
AB350

Triple Monitor


Graphics, graphics and even more graphics! You've demanded for more eye candy, so this motherboard supports Triple Monitor. You may choose up to three display interfaces from the rear i/o to connect monitors and use them simultaneously without installing another graphics card.
*Supported with A-Series APUs only.
AB350

A-Tuning


A-Tuning is ASRock's multi purpose software suite with a new interface, more new features and improved utilities.
AB350

Live Update & APP Shop


ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.
AB350 The specification is subject to change without notice in advance. The brand and product names are trademarks of their respective companies. Any configuration other than original product specification is not guaranteed.
The above user interface picture is a sample for reference. The actual user interface may vary with the updated software version.

Learn more about the ASRock AB350 Pro4

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 Newegg.ca's Standard Return Policy.
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Nice easy board to install and setup.

Pros: Went in without issue. Had to move some items around and still had no problems

Cons: The instructions could be a slight bit better to describe the location of some of the connections for non-tech people.

Did you find this review helpful?
1/ 5
Not good

Pros: I loved the features included at this price point. The M.2 PCIe slot was a keeper for sure.

Cons: Could not get it to remember what was connected. It would see the USB drives at times, but most times would not. We absolutely could not get it to install an OS from the USB. The first attempt to access an M.2 drive caused a crash - and it simply hung (no error, timeout or anything). Once we got it to read the drive (several attempts later) it would not see the drive once the system was rebooted (nothing was changed). We tried to install Windows and different versions of Linux (that worked on other rigs). The version of Windows 10 I have does not fit on a DVD. I am not sure if this is design issue or just a bad board, but to have a rig that boots differently (or not) each attempt is beyond frustrating. I would suggest anyone considering this board do your homework carefully and decide if you have the expertise to deal the headaches this component may present. Again, of this could simply be caused by a bad board. Lastly, the user manual does not do the best job of explaining all of the BIOS settings either. This did not help in my troubleshooting efforts. I will be returning this item. Sad - I love the features and the pricing of this motherboard.

Other Thoughts: I would not recommend this item to buyers. I ran into too many problems that are not isolated happenings. Spend a few more dollars and consider a comparable Asus, MSI, or Gigabyte platform. I have yet to have difficulties with any of them.

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

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.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with single memory module, switching another memory if it same issue.
• Check the CPU is not overheating.
• Reinstall the drive firmly, enter BIOS, Advanced, Storage Configuration to verify the drive is detected.
• To install from USB, press F11 (repeatedly) to bring boot devices menu, select the desire boot device to boot.

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: 1 month to 1 year
Verified Owner
2/ 5
Doesn't recognize boot drives

Pros: Seems like a good board for the money with good features for the money and all the connections I need.

Cons: This board was a pain in the tuchus to set up. Once set up, it frequently forgets what's connected to the SATA channels and won't boot. I have tried bios flashes, updates, changes in bios settings, etc. The only solution seems to disconnect power, change around the SATA cables, and then it will recognize the system drive. The system drive never had an issue booting on my old mobo. This is a really aggravating issue and every time I have to shut down or reboot, I'm in fear of it never coming back.

Other Thoughts: I'd been a loyal Gigabyte mobo user for over a decade and now I'm regretting the change.

1 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Dear Valued ASRock Customer,

We sincerely apologize for any inconvenience this may have caused you.
For the boot, please connect the boot drive on SATA3_1.
Set the first boot option #1 "Windows boot manager" for Windows 10 drive.
Save and exit.
If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Very Happy So Far

Pros: -Works well
-I banged it up a bit and it didn't suffer, so, very sturdy
-Nice utility menu

Cons: -Finding RAM that would work with it was weirdly hard. Do your research carefully!

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Asrock Solid.what can I say

Pros: sturdy board
cpu placement
handles my Ryzen 5 2600
G.Skill Ripsaw memory @ 3000

Cons: i missed the memo about onboard video is shutoff if using the new Ryzen processors. simple workaround is add in your video card and your good. I just wasted 30 min scratching my head since I build machines without peripherals

Other Thoughts: Great board for my level of gaming (only Arma)

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
I've bought this multiple times

Pros: I build computers for friends all the time and when I build a ryzen build (which I do often) this is what I choose. It's cheap, good, and does what you need. May not be the most advanced when it comes to bios, but for 99% of people, it's perfect for the price.

Cons: n/a

Other Thoughts: Only problem I've ever had was a friend couldn't run VR on their computer. It'd crash when using the vive and have a lot of problems. It stumped me for months and we almost gave up and returned the vive when I decided to try one last thing. I never thought it could be the bios, but to my surprise it was. It was just needing a bios update and all the problems dissipated. It's a great product for a great price.

Did you find this review helpful?
2/ 5
sub-par to average

Pros: basic functions, probably works fine

Cons: cheap construction

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

Thank you for purchase and review.
Wonder that you meas by "cheap construction"
Please visit link below for boards' specification.
Specification link: https://www.asrock.com/mb/AMD/AB350%20Pro4/index.us.asp#Specification

If you have any technical or warranty inquiry in the future, please contact us at https://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: https://event.asrock.com/tsd.asp
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Arrived DOA

Pros: - Newegg has a really good RMA policy.
- No idea, I didn't get to use it.

Cons: - Arrived DOA
- Socket seemed a little loose/wiggly
- Flimsy board
- Board didn't power on at all. After getting a replacement (different brand) board I was able to verify it absolutely was this ASRock board that was the issue in my build.

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

We sincerely apologize for any inconvenience this may have caused you.
For the future reference, please trouble shoot the mainboard whether the issue is resolved.
• Remove all components from mainboard (CPU, memory, VGA, HDD/SSD, USB devices, etc..).
• Remove the mainboard from inside computer to outside, place the mainboard on mainboard box.
• Clear the CMOS.
• Reinstall the CPU and CPU cooler.
• Re-connect the power supply’s 24+8 pins ATX power firmly.
• Connect the computer case’s power switch to mainboard (Panel1)
• Plug the power to PSU.
• Turn the power on to check if it’s get the power.
• Populate the components one by one to test for screen display if it gets the power.

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
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