ASRock
ASRock B450M-HDV R4.0 AMD B450 AM4 Socket Ryzen 2000
Bottom line: The ASRock B450M-HDV R4.0 AMD B450 AM4 Socket Ryzen 2000: Supports Ryzen 2000 through 5000 and 5000 G-Series on one AM4 board; main trade-off: only 2 DIMM slots, capping memory at 64GB across two modules.
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Pros & Cons
Pros
- ✓ Supports Ryzen 2000 through 5000 and 5000 G-Series on one AM4 board
- ✓ Ultra M.2 slot runs PCIe Gen3 x4 or SATA3 for a fast boot drive
- ✓ Triple video out (HDMI, DVI-D, D-Sub) drives displays off a Ryzen APU
- ✓ Four SATA3 ports plus Realtek Gigabit LAN and 7.1 CH ALC887/897 audio
Cons
- ✗ Only 2 DIMM slots, capping memory at 64GB across two modules
- ✗ Second expansion slot is PCIe 2.0 x1, not a usable x4 or x16
- ✗ Single M.2 slot means added SSDs fall back to SATA3
- ✗ No onboard Wi-Fi; you spend the PCIe 2.0 x1 slot or a USB port
Manufacturer description
The ASRock B450M-HDV R4.0 is a Micro ATX motherboard built for AMD's AM4 socket, and it remains one of the most practical foundations for a budget Ryzen build. It supports Ryzen 2000, 3000, 4000 G-Series, 5000 and 5000 G-Series desktop processors, so you can drop in anything from an older Ryzen 5 to a Ryzen 5000 chip without changing boards. Two DIMM slots handle DDR4 3200+ (OC) up to 64GB, and storage is covered by four SATA3 ports plus a single Ultra M.2 slot running PCIe Gen3 x4 or SATA3 for a fast boot drive. Expansion runs through one PCIe 3.0 x16 slot for your graphics card and one…
SpecPicks Verdict
SpecPicks scored ASRock B450M-HDV R4.0 AMD B450 AM4 Socket Ryzen 2000 using a rating × review-volume × price-fit model applied to published specs and reviews across the motherboards category. ASRock's motherboards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this board work with a Ryzen 5 5600X without a BIOS update?
ASRock lists Ryzen 2000, 3000, 4000 G-Series, 5000 and 5000 G-Series support for the B450M-HDV R4.0. Ryzen 5000 support on B450 depends on the shipped BIOS revision, so check the product listing or ASRock's CPU support page for the exact revision before buying.
How much RAM can the ASRock B450M-HDV R4.0 hold?
It has 2 DIMM slots supporting up to 64GB of DDR4 at 3200+ (OC). That means two 32GB modules to reach the ceiling, since there are no third or fourth slots for smaller sticks.
Can I run a display without a graphics card?
Yes, if you use a Ryzen G-Series APU. The board provides HDMI, DVI-D and D-Sub outputs. Non-G Ryzen CPUs have no integrated graphics, so those builds need a card in the PCIe 3.0 x16 slot.
What kind of NVMe drive fits this motherboard?
There is one Ultra M.2 slot that accepts PCIe Gen3 x4 or SATA3 M.2 drives. A Gen4 SSD will physically fit but runs at Gen3 speeds. Additional drives connect through the four SATA3 6Gb/s ports.
Does the B450M-HDV R4.0 fit in a Micro ATX case?
Yes, it is a Micro ATX board, so it fits Micro ATX and larger ATX cases. ASRock notes it is not compatible with all built-in prebuilt computers or systems, so confirm the case and PSU standoffs before ordering.
Key Features
- ***Not compatible with all built-in computers or systems
- Supports AMD AM4 Socket Ryzen 2000, 3000, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors
- 2 DIMMs, Supports DDR4 3200+(OC)
- 1 PCIe 3.0 x16, 1 PCIe 2.0 x1
- Graphics Output : HDMI, DVI-D, D-Sub
- 7.1 CH HD Audio (Realtek ALC887/897 Audio Codec)
Full Specifications
| Brand | ASRock |
|---|---|
| Weight | 4000 g |
| USB 2.0 | 2 |
| Platform | Windows |
| CPU Socket | Socket AM4 |
| Model Name | B450M-HDV R4.0 |
| Chipset Type | AMD B450 |
| Connectivity | USB |
| Model Number | B450M-HDV R4.0 |
| Chipset Family | AMD B450 |
| Graphics Output | HDMI, DVI-D, D-Sub |
| Mfr Part Number | B450M-HDV R4.0 |
| Number of Items | 1 |
| Number of Ports | 23 |
| Total Usb Ports | 8 |
| Processor Socket | Socket AM4 |
| Total PCIe Ports | 2 |
| Total SATA Ports | 4 |
| Compatible Devices | Personal Computer |
| Memory Clock Speed | 3200 MHz |
| Full listing title | B450M-HDV R4.0 AMD B450 AM4 Socket Ryzen 2000 - 5000 Processors DDR4 3200 64GB HDMI DVI-D D-Sub Motherboard SATA 6Gb/s Micro ATX M.2 |
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B450M-HDV R4.0 AMD B450 AM4 Socket Ryzen 2000 - 5000 Processors DDR4 3200 64GB HDMI DVI-D D-Sub Motherboard SATA 6Gb/s Micro ATX M.2 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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