Overview
The ASRock B450M-HDV R4.0 is a Micro-ATX motherboard built around the AMD B450 chipset and AM4 processor socket. It supports compatible AMD Ryzen desktop processors, DDR4 memory, M.2 storage, SATA drives, and multiple display outputs. Its compact form factor makes it suitable for compatible desktop PC builds.
Key Features
- AMD AM4 socket with support for selected Ryzen desktop processors.
- Two DDR4 DIMM slots with supported memory speeds up to DDR4 3200+ (OC), depending on the processor.
- One Ultra M.2 socket supporting compatible PCIe Gen3 x4 or SATA M.2 drives.
- HDMI, DVI-D, and D-Sub display outputs for supported processor graphics.
- Micro-ATX form factor with Gigabit LAN and multiple USB ports.
Processor and Memory Support
The motherboard supports selected AMD Ryzen 2000, 3000, 4000 G-Series, 5000, and 5000 G-Series desktop processors, subject to the processor and BIOS support list. It provides two DDR4 memory slots and supports dual-channel memory. Check the official CPU support list before selecting a processor.
Storage and Expansion
The board includes one Ultra M.2 socket for compatible M.2 SATA or PCIe Gen3 storage and four SATA3 connectors for conventional SATA drives. Expansion slots include one PCIe 3.0 x16 physical slot with operating mode dependent on the installed processor, plus one PCIe 2.0 x1 slot.
Connectivity and Display
Rear connectivity includes HDMI, DVI-D, D-Sub, USB, PS/2, Gigabit Ethernet, and HD audio connections. Display outputs depend on using a compatible processor with integrated graphics; a dedicated graphics card may be required for processors without integrated graphics.
Technical Specifications
| Brand | ASRock |
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| Manufacturer | ASRock |
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| Model | B450M-HDV R4.0 |
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| MPN | B450M-HDV R4.0 |
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| Product Type | Desktop motherboard |
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| Chipset | AMD B450 |
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| CPU Socket | AMD AM4 |
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| Processor Support | Selected AMD Ryzen desktop processors; verify CPU support list |
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| Memory Type | DDR4 |
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| Memory Slots | 2 × DDR4 DIMM |
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| Maximum Memory | 64 GB |
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| Memory Speed | Up to DDR4 3200+ (OC), depending on processor |
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| Expansion Slots | 1 × PCIe 3.0 x16 slot; 1 × PCIe 2.0 x1 slot |
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| M.2 Storage | 1 × Ultra M.2, compatible PCIe Gen3 x4 and SATA3 modes |
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| SATA Ports | 4 × SATA3 6 Gb/s |
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| Video Outputs | HDMI, DVI-D, D-Sub |
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| Networking | Realtek Gigabit LAN |
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| Audio | 7.1-channel HD audio; codec varies by board revision |
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| Form Factor | Micro-ATX |
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| Board Dimensions | 9.0 × 7.9 inches (23.0 × 20.1 cm) |
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| Weight | |
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Compatibility and Installation
Confirm the exact CPU model, BIOS compatibility, DDR4 memory specifications, case support for Micro-ATX boards, and power supply connectors before installation. Integrated display outputs require a compatible processor with integrated graphics. Refer to the motherboard manual for installation instructions and connector locations.
DC Supplies Product Note
Verify the board revision, physical condition, included accessories, and warranty coverage for the specific unit supplied. Processor compatibility and supported features may depend on the BIOS version and exact hardware revision.
Frequently Asked Questions
Which processors are compatible with the B450M-HDV R4.0?
It supports selected AMD Ryzen desktop processors using the AM4 socket. Check ASRock's CPU support list for the exact processor and required BIOS version.
Which type of RAM does this motherboard use?
It uses DDR4 memory and has two DIMM slots, with a maximum supported capacity of 64 GB.
Does this motherboard support M.2 SSDs?
Yes. It has one Ultra M.2 socket supporting compatible PCIe Gen3 x4 and SATA3 M.2 storage devices.
Does it have built-in Wi-Fi?
Wi-Fi is not listed as an onboard feature in the official specifications. Wireless connectivity requires a compatible add-on solution.
Will the HDMI output work with every AM4 processor?
No. Display output requires a compatible processor with integrated graphics. A separate graphics card is needed for processors without integrated graphics.
Manufacturer Documentation
Refer to the official ASRock B450M-HDV R4.0 product page for specifications, manuals, and processor compatibility information.
