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ASRock B450M-HDV R4.0 AM4 AMD Promontory B450 SATA 6Gb/s Micro ATX AMD Motherboard

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  • AMD Promontory B450
  • Ryzen Series
  • AMD Ryzen series CPUs (Matisse) support DDR4 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • 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 (Picasso) support DDR4 2933/ 2667/ 2400/ 2133 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

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews
ASRock B450M-HDV R4.0 Motherboard next to its product box

ASRock B450M-HDV R4.0 Motherboard

Experience a new level of performance and reliability with the ASRock B450M-HDV R4.0 motherboard. It works flawlessly with AMD Ryzen-series AM4 processors and supports up to DDR4 3200+ (OC)* memories. Oriented towards DIY enthusiasts, this board comes with one PCIe 3.0 x16 slots, four SATA 3 slots, one Ultra M.2 slot (PCIe Gen3 x4 & SATA 3)* and six USB 3.1 Gen1 ports to meet diverse connectivity needs. It even supports 4K ultra HD and triple-monitor setups. AMD StoreMI Technology unites the speed of SSD and the capacity of HDD perfectly. Quality components installed on the Sapphire black PCB ensure amazing quality and durability.

* Actual support may vary by CPU.

An HDD, SATA SSD and NVMe SSD icon on top of a larger gray HDD icon
AMD StoreMI Technology

A powerful tool that combines the speed of your SSD with the capacity of your hard disk into a single, fast, easy-to-manage drive. SSDs are fast, but expensive, and offer minimal capacity. Mechanical hard drives boast large capacity for a low price, but are much slower than an SSD. AMD StoreMI technology “combines” these two types of storage into a single drive and automatically moves the data you access the most to the SSD, so you get the best of both worlds: SSD responsiveness, and mechanical hard disk capacity. You can also use up to 2GB of RAM as a last-level cache for ultra-fast data.

* AMD StoreMI software is only free with 400-series chipset based motherboards.

Ultra M.2 32 Gb/s (PCIe Gen3 x4 & SATA 3) area on the motherboard

Ultra M.2 32Gb/s (PCIe Gen3 x4 & SATA 3)

The PCIe Gen3 x4 Ultra M.2 interface pushes data transfer speeds up to 32Gb/s. In addition, it also supports SATA3 6Gb/s M.2 modules, and is compatible with ASRock’s U.2 Kit for installing some of the world’s fastest U.2 PCIe Gen3 x4 SSDs.

Super Alloy Motherboard text and graphics
High Density Glass Fabric PCB versus Traditional Fibers
High-Density Glass-Fabric PCB

The high-density glass-fabric PCB design reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

Sapphire Black PCB corner of the ASRock motherboard
Sapphire Black PCB

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

Triple Monitor setup sharing an image of a planet's atmosphere, an eclipsed sun and space
Triple Monitor

Graphics, graphics and even more graphics! You've demanded more eye candy, so this motherboard supports triple-monitor setups. 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.

* Only supports processors with integrated graphics.

4K Ultra HD monitor next to a 4K/2K TV icon
4K Ultra HD

These monitors are composed of a minimum of 3840x2160 pixels, which is twice the horizontal and vertical resolution of the 1080p format.

* Supported with A-Series APUs only.

Solid Capacitors on the ASRock motherboard
Solid Capacitor Design

ASRock applied solid capacitors on this motherboard. With these solid capacitors, this motherboard is allowed to perform more stably and ensures an overall longer lifetime.

ELNA Audio Caps on the ASRock motherboard
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 of audiophiles.

Digi Power VRM Design graphic over the ASRock motherboard
Digi Power

This motherboard uses a next-generation Hybrid Digi Power design to bring precise control and smooth power. With the ensured efficient and clean power delivery to the CPU, the stability and lifespan of this motherboard is also greatly enhanced.

Three open A-Tuning software windows
A-Tuning

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

Full Spike Protection logo
Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges. The excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.

Live Update & APP Shop graphic with compatible software
Live Update & APP Shop

The ASRock Live Update & APP Shop has been 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 the ASRock Live Update & APP Shop.


Learn more about the ASRock B450M-HDV R4.0

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Good value. Good features. 7/14/2020 1:30:47 PM

Overall Review: Great value MB.

Did you find this review helpful?
1/ 5
never could run correctly 7/7/2020 9:23:21 PM

Pros: -m.2 slot

Cons: -only 2 ram slots
-poorly placed io pins
-poor ram compatibility

Overall Review: kept getting complete system freezing and bsod crashes with r5 3600 & corsair vengeance lpx 3200mhz memory. tried all sorts of things including...

-cmos reset
-bios update
-chipset update
-updated all drivers
-reseating ram
-reseating cpu
-trying only one ram module (would work a bit longer than both modules. almost thought we had it working here)
-turning on xmp
-under and overclocking ram
-under and overclocking the cpu
-increasing ram voltage to 1.38
-monitoring for temp spikes
-removing and reinstalling drivers
-changing gpu & drivers

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

Sorry for any inconvenience this may have caused you.
We will be more than happy to assist you.
Please contact us at https://event.asrock.com/tsd.asp

Thank you

ASRock Support
Tech Support Email: https://event.asrock.com/tsd.asp
Anonymous
Ownership: 1 month to 1 year
Verified Owner
1/ 5
No video with new Ryzen processor...frustrated. 6/27/2020 10:01:29 PM

Pros: Clean, simple and stylish. Decent specs and built in video.

Cons: Does not seem to be compatible with new Ryzen 5, can't get video, so pretty much useless. Many forums are talking about this, and have tried everything imaginable to troubleshoot. Many indicate board is not compatible with processor. Can't even get to bios screen.

Overall Review: Would not purchase again.

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

We sincerely apologize for any inconvenience this may have caused you.
Please check the BIOS version is 2.30 or newer to support 3600 or above, visit link below for BIOS version finding.
Link: https://www.asrock.com/support/index.asp?cat=FindBIOS

If the BIOS version is supported the CPU, please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power, remove all components from mainboard.
• Remove the mainboard from chassis, place it on mainboard’s box.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with single memory module (non-ECC, un-buffered).
• Test with onboard video (CPU with APU or test with VGA card).
• Connect the monitor.
• Plug the 24 + 4 pins ATX power.
• Connect the chassis power switch to mainboard.
• Turn on the power to check if its post.

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
Anonymous
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Works well 6/23/2020 5:46:17 PM

Overall Review: Had no trouble so far!

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
4/ 5
Decent board for the price, no bells or whistles 6/22/2020 3:12:47 AM

Pros: -Price
-Access to high end Ryzen without high end Ryzen prices

Cons: -One PCIe 16x
-2 Ram DIMMs

Overall Review: This board is great for those not looking for fancy UEFIs, or with a ton of expansion slots and features. Not a whole ton of anything, but has what you need to make a decent gaming rig without breaking the bank.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
2/ 5
good mobo 6/16/2020 9:59:48 PM

Pros: + works well
+ bios with interesting features

Cons: - mail-in rebate is a scam

Overall Review: Good product, but disconsider the mail-in rebate in the price

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Updated review 6/16/2020 7:01:15 AM

Pros: Cheap price

Cons: It was a problem with motherboard when you shutdown the PC it never run again unless you unplug the power cable or press restart button ,, and the bad sata location

Overall Review: After one month of using it with this problem and use all kind of advices ,it doesnt work, then I decide to downgrade the bios to 3.20 version (came with 3.70 version) and the downgrade work 100%
And now its normal motherboard that shutdown and start normally and the 3.20 works fine on ryzen 3700x

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Inexpensive upgrade 6/12/2020 7:19:32 AM

Pros: Easy to pop into an existing case
Well marked attachment points
BIOS is fairly easy to use
Preset with newer bios of Ryzen 3200G

Cons: Drivers mostly worked but the ones that didn't were on a CDROM which I couldn't access. The website was a bit tricky, so I ended up downloading a few drivers from the net to make it work better. (sound drivers were hard to find until I figured out which drivers were needed)

Overall Review: For keeping costs low, this MB works perfectly fine. Not a lot of room for future growth with only 2 ram slots and 1 PCIE 3 slot, but for me that wasn't needed. Fast USB 3.1 is a great upgrade as well.

Did you find this review helpful?
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