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Green MicroATX motherboard with black AM4 socket and silver heatsinks

ASRock

ASRock B450M-HDV AM4 AMD motherboard

SKU CH-2DRW-13EH3

MicroATX AM4 board with 7 power phases, DDR4 up to 3200 OC, one PCIe 3.0 x16, one PCIe 2.0 x1, four SATA3, one M.2, six USB 3.1 Gen1, HDMI, DVI-D, D-Sub, Realtek gigabit LAN and 7.1 audio

  • CPU Socket TypeAM4
  • Form FactorMicroATX
  • AM4 socket supports Ryzen CPUs up to 105W
  • 32GB DDR4-3200 dual-channel memory capacity
  • 4 SATA3 ports with RAID 0, 1, 10 support
  • HDMI, DVI-D, D-Sub enable triple-monitor output
  • Realtek ALC887 7.1 audio with ELNA capacitors

Target Builder

The ASRock B450M-HDV is a MicroATX board for the AM4 socket and the AMD Promontory B450 chipset. It suits builders who need a compact foundation for a Ryzen processor up to 105W TDP. The layout provides two DDR4 slots, one full-length PCIe 3.0 x16 slot running at x8, one PCIe 2.0 x1 slot and four SATA3 ports with RAID 0, 1 and 10 support. Integrated graphics outputs are HDMI, DVI-D and D-Sub for triple-monitor configurations.

Thermals and Power

The 7-phase Digi Power design feeds the CPU socket cleanly within the 105W limit. Passive heatsinks on the VRM area keep temperatures in check during typical workloads without adding fan noise. Power draw at the wall reflects the chosen processor and memory kit rather than the board itself. The Realtek Gigabit LAN controller and the Realtek ALC887 audio codec with ELNA caps draw minimal power in everyday use.

Connectivity and Daily Use

Rear I/O supplies four USB 3.1 Gen1 ports plus PS/2, HDMI, DVI-D, D-Sub, LAN and 7.1-channel audio jacks. Two front-panel USB 3.1 Gen1 headers and an Ultra M.2 slot supporting PCIe Gen3 x4 and SATA3 give internal expansion options. The MicroATX form factor fits smaller chassis while still exposing all key headers. Builders who need more than two memory slots, a second full-speed x16 slot or onboard Wi-Fi should look elsewhere.

Highlights

  • AM4 socket supports Ryzen CPUs up to 105W
  • 32GB DDR4-3200 dual-channel memory capacity
  • 4 SATA3 ports with RAID 0, 1, 10 support
  • HDMI, DVI-D, D-Sub enable triple-monitor output
  • Realtek ALC887 7.1 audio with ELNA capacitors

Specifications

BrandASRock
ModelB450M-HDV
CPU Socket TypeAM4
Form FactorMicroATX

Questions about this item

How do I install the board in a MicroATX case and which standoff step is often missed?

Align the MicroATX mounting holes with the case standoffs, fit the I/O shield first, then secure all screws; the step most builders skip is checking that no extra standoff touches the back of the PCB.

What maintenance or replacement will the board need over time?

The ELNA audio capacitors are the components most likely to age; they are rated for long life but can eventually dry out and lose capacitance.

What limit appears first during sustained heavy loads?

The 7-phase Digi Power design is rated for CPUs up to 105 W; running a 105 W processor continuously will hit the VRM thermal limit before the chipset or memory does.

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