Scan code: LN98077 Manufacturer code: 90-MXB9M0-A0UAYZ

ASRock AMD A320M DVS R4.0 Ryzen AM4 Micro ATX Motherboard

ASRock A320M-DVS R4.0, AMD A320, S AM4, DDR4, SATA3, Realtek GbE, USB 3.1 Gen1 A, MicroATX

Thumbnail 1 : ASRock AMD A320M DVS R4.0 Ryzen AM4 Micro ATX Motherboard Thumbnail 2 : ASRock AMD A320M DVS R4.0 Ryzen AM4 Micro ATX Motherboard Thumbnail 3 : ASRock AMD A320M DVS R4.0 Ryzen AM4 Micro ATX Motherboard Thumbnail 4 : ASRock AMD A320M DVS R4.0 Ryzen AM4 Micro ATX Motherboard
Scan code: LN98077 Manufacturer code: 90-MXB9M0-A0UAYZ
Was: £39.98
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  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

Frequently Bought Together
Product Overview

Sapphire Black PCB

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

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

Gigabit LAN

This ASRock motherboard uses a Realtek gigabit LAN chip to support extremely fast internet connections.

Dual Graphics Outputs

Complete with two types of most used connectors! Packed with a DVI + D-SUB combo, you have more graphics output options now.

Solid Capacitor Design

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

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.

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

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 optimise your system and keep your motherboard up to date with ASRock Live Update & APP Shop.

• AMD AM4 Socket.
• 2x DIMMs, Supports DDR4 3200+(OC).
• 1x PCIe 3.0 x16, 1x PCIe 2.0 x1.
• Graphics Output: DVI-D, D-Sub.
• 7.1 CH HD Audio (Realtek ALC887 Audio Codec), ELNA Audio Caps.
• 4x SATA3.
• 6x USB 3.1 Gen1 (2x Front, 4x Rear).
• Realtek Gigabit LAN.
Core Specifications
Edition A320M-DVS R4.0
Form Factor MicroATX
CPU Socket AM4
Chipset AMD A320
RAM Memory Support
Memory Type DDR4
Memory Channel Dual (2)
Memory Type (ECC) ECC/Non-ECC
Memory Type (R/U) UDIMM (Unbuffered)
Memory Speed (Mhz)
  • DDR4 - 2133
  • DDR4 - 2400
  • DDR4 - 2666
  • DDR4 - 2933
  • DDR4 - 3200+(OC)
Max. Memory Capacity 32GB (2x16GB)
Audio Realtek ALC887 7.1 HD Audio
Graphics Support
Primary GPU Interface PCIe 3.0 (x16)
NVIDIA SLI Support Not Supported
AMD CrossFire Support Not Supported
Integrated Graphics  
On-Board Graphics Connectors
  • D-Sub (VGA)
  • DVI-D
Internal Connectivity
Expansion Slots
  • 1 x PCIe 2.0 x1
  • 1 x PCIe 3.0 x16
SATA Support SATA3
RAID Support via SATA
Storage Mode Support
  • AHCI
  • Hot Plug
  • NCQ
  • RAID 0
  • RAID 1
  • RAID 10
Internal I/O
  • 1 x 24-pin (Power)
  • 1 x 3-pin System Fan Connector
  • 1 x 4-pin (Power)
  • 1 x 4-pin CPU Fan Connector
  • 1 x 4-pin System Fan Connector
  • 1 x Chassis Intrusion/Speaker Header
  • 1 x Front Panel Audio Header
  • 4 x SATA III - 6Gb/s
  • 1 x Serial (COM) Header
  • 1 x TPM Header
  • 2 x USB 2.0 Header
  • 1 x USB 3.1 Gen1 Header
External Connectivity
Network Interface Type Wired Gigabit LAN (10/100/1000)
Network Chip/Modules 1 x Realtek RTL8111H (Gigabit LAN)
Rear I/O Connectors
  • 1 x D-Sub (VGA) Out
  • 1 x DVI-D
  • 1 x Front Speaker Out
  • 1 x Line In
  • 1 x Mic-In
  • 1 x PS/2 Keyboard/Mouse Combo
  • 1 x RJ-45
  • 2 x USB 2.0
  • 4 x USB 3.1 Gen1 Type-A
Additional Specifications
Water Cooled No
QPI Speed N/A
Board Dimensions 230 x 201 mm
Additional Information
Scan Code LN98077
Model Number 90-MXB9M0-A0UAYZ
GTIN 4717677337655

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

24 months
Return to base
DOA Period:
28 days
RTB Period:
24 months
Manufacturer Contact Details
0871 472 4747
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TekSpek Guides
AMD Ryzen Chipset
AMD Ryzen Chipset
Date Issued: 20th Nov 2017

AMD made waves in the premium consumer CPU market during March 2017 when it debuted Ryzen processors based on the Zen architecture that had been in development for the previous four years

Read More

ASRock A320M-DVS R4.0, AMD A320, S AM4, DDR4, SATA3, Realtek GbE, USB 3.1 Gen1 A, MicroATX is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from More than cheerful A typical microATX case will have 4 PCIe slot covers, so there are 4 positions for PCIe slots on a microATX motherboard. One of the big differences between boards lies in what positions are filled, and how. The A320M-DVS has a good layout, in my view, which is why I chose it, and that is with a short slot (PCIE1) above the long slot (PCIE2) for a graphics card (‘above’ if the motherboard is in a conventional vertical position), with the remaining two positions unfilled. That’s sensible, because if you do use a graphics card where the fans cover ‘PCIE3’, then using anything in ‘PCIE4’ would interrupt their airflow. You could put the long slot in position 3, or in position 4 if it didn’t interfere with the connections along the bottom edge of the motherboard, but position 2 is the ‘sweet spot’, and position 1 a good place for a small expansion card. This PCIe slot layout is shared with the marginally more expensive A320M-HDV, which also has an M2 connector (left off the -DVS, although the board is marked out for one). I didn’t find the absence of M2 the slightest problem, as my build used an SSD as the boot device. I paired the board with a Ryzen 2600, and found that the in-the-box cooler would only go one way round, or else the tab with the AMD logo interferes with the RAM. Clearly, the A320 has limitations (fewer SATA ports, no M2, fewer RAM slots etc) compared to the high-end boards, but the R4.0 board supports Ryzen 3000 series and is no slouch, and is much, much, cheaper. It is probably ideal when paired with a ‘G’ processor with onboard graphics as that would give much better airflow and also make the video output sockets on the motherboard come alive (I connected my monitor to one of them by mistake, and spent a couple of minutes puzzled!). As it is, they could do with some covers to show that they aren’t enabled. The board slid easily into a cheap ‘cube’ case and is powered by a Seasonic modular PSU. An observation that I will make is that microATX cases don’t usually have many pin-outs for case fans, and the A320M-DVS is no exception. This puzzles me, because a microATX board is likely to go into a small case, and probably needs more fans. However, as the fan connectors can produce 1W, and typical Arctic fans consume 0.25W, one connector can power multiple fans, even if that does make it impossible to have motherboard control of fan speed.
Date published: 2019-12-29
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Ryzen 3000 compatible?

is this mobo run the ryzen 3000 cpus out of the box?
Asked by: Lermon
Yes, it is. I mentioned it in my review, and there's a sticker on the box that say it is. Since I wrote the review, I've bought a second instance of this motherboard, which I twinned with an Athlon 3000G, and also arranged to boot off an SSD. This is for my reserve computer, to use if the main one packs up for any reason. The main one boots from an NVME drive on an Asrock B450 board.Amazingly, the A320 computers (one with a Ryzen 2600, one with the 3000G) with SSDs boot faster than the B450 with NVME and a Ryzen 2600. Aside from that, the performance in Office apps is identical. Unless you have multi-threaded applications like games etc, the faster processors are not particularly beneficial.. This board is brilliant using the onboard graphics and the 3000G, leaving the case uncongested.
Answered by: ShedPainter
Date published: 2020-08-30
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ASRock AMD A320M DVS R4.0 Ryzen AM4 Micro ATX Motherboard
ASRock AMD A320M DVS R4.0 Ryzen AM4 Micro ATX Motherboard