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ASRock · AM4 · B450M

ASROCK B450M-HDV R4.0

Micro-ATX · DDR4 · 2 DIMMs · 5-phase VRM

Quality
34
VRM
12
Value
86
Amazon
$75
ASROCK B450M-HDV R4.0
View ASROCK B450M-HDV R4.0 Gallery in high resolution
$75
Available Updated 2 days, 6 hours ago
Overall33.8
VRM12.0
Chipset58.0
Expansion / storage30.0
Connectivity29.0
Audio40.0
Quality / price85.6
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Written analysis

ASROCK B450M-HDV R4.0 at a glance

The ASROCK B450M-HDV R4.0 uses the Micro-ATX form factor, AM4 socket, and B450M chipset. This is a balanced mainstream platform: enough expansion and connectivity for a performance PC without paying only for flagship extras.

Memory support is DDR4 across 2 DIMM slots, with up to 64 GB and rated overclocked speeds up to 3200 MT/s. The board can operate memory in ECC mode. XMP / EXPO memory-profile support is recorded for easier tuning.

Best fit: a budget or straightforward office build using a lower-power CPU and a small number of add-in devices.

Power delivery

The calculated VRM score is 12.0, placing the power delivery in the basic class. The board lists 5 CPU power phases, 50 A power stages in a 5+1 layout. CPU power input is listed as 1. Keep it paired with lower-power processors and avoid sustained overclocked loads.

Expansion and storage

The expansion and storage score is 30.0: focused on the essentials. The platform supports PCIe 3.0. Physical expansion includes 1 ×16 slot, and 1 ×1.

On-board storage consists of 1 M.2 slot supporting Gen3 x4, Gen3 x2 and 4 SATA ports. Supported M.2 lengths are listed as 2242, 2260, 2280. The single M.2 slot makes drive planning more important if future expansion matters.

Connectivity and rear I/O

The connectivity score is 29.0, rated essential. There is no recorded onboard Wi-Fi ; wired networking is PCIE x1 Gigabit LAN 10/100/1000 Mb/s at up to 1000 Mbps. The recorded USB provision is 6 rear connections; a front-panel total is not recorded. The specification sheet below separates every USB speed and connector type.

Display connectivity includes HDMI. These motherboard outputs require a processor with integrated graphics.

Audio

The audio score is 40.0. This is a standard onboard solution using Realtek ALC887/897. It covers normal gaming and communication; demanding headphones or production work still benefit from an external interface. The rear panel has 3 analogue jacks.

Buying verdict

Overall quality is 33.80, a minimal result. Buy it for a simple compatible build, not for expansion, heavy tuning, or a long list of onboard features.

At the recorded Amazon price, the quality-to-price score is 85.6—an excellent value relative to the other boards in the catalog.

Board data

Full specifications

Platform, expansion, storage, rear I/O, internal headers, networking, audio, and board controls in one sheet.

General

Manufacturer
ASRock
Motherboard
ASROCK B450M-HDV R4.0
Chipset / socket
B450M / AM4
Form factor
Micro-ATX
Launch price
—
Amazon price
$75
Availability
In stock
Price updated
2 days, 6 hours ago

VRM

CPU phases
5 (50 A)
Power design
5+1
EPS connector
1

Memory

Type / slots
DDR4 / 2 DIMMs
Max capacity / OC
64 GB / 3200 MT/s
Per DIMM
32 GB
XMP / EXPO
Yes
ECC
Operates in ECC mode

PCIe

Supported version
PCIe 3.0
x16 physical
1
x16 Gen 3
1
x1 physical
1

Storage

M.2 slots
1
M.2 lengths
2242, 2260, 2280
M.2 modes
Gen3 x4, Gen3 x2
SATA ports
4

Display outputs

HDMI
Yes · 4096x2160 @ 24Hz / 3840x2160 @ 30Hz
DisplayPort
No
USB-C DisplayPort
No

USB

Rear USB 2.0
2
Rear USB 3.2 Gen 1 Type-A 5 Gbps
4
Header USB 2.0
4
Header USB 3.2 Gen 1 Type-A 5 Gbps
2

Networking

Ethernet
PCIE x1 Gigabit LAN 10/100/1000 Mb/s
LAN ports
1
LAN speed
1000 Mbps
Wi-Fi
Not included
Bluetooth
No

Audio

Chipset
Realtek ALC887/897
Analog jacks
3
Gold-plated jacks
No
Optical S/PDIF
No
Spatial audio
No

Additional information

Memory notes
Supports DDR4 un-buffered memory. Memory speed support (3200 / 2933 / 2667 / 2400 / 2133) and ECC functionality depend on the installed AMD Ryzen CPU/APU series. For Ryzen Series APUs (Picasso, Cezanne, Renoir and Raven Ridge), ECC is only supported with PRO CPUs. Features 15μ Gold Contact in DIMM Slots. Please refer to the manufacturer for AMD non-XMP memory frequency support details.
Display notes
Features Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU (Actual support may vary by CPU). Supports DirectX 12 and Pixel Shader 5.0. Shared memory is 2GB by default, with a maximum of 16GB (requires 32GB system memory). Provides three graphics output options: D-Sub (max res 2048x1536 @ 60Hz), DVI-D (max res 1920x1200 @ 60Hz), and HDMI. Supports Triple Monitor setup. The HDMI port supports Auto Lip Sync, Deep Color (12bpc), xvYCC, HBR Audio, HDCP 1.4, and 4K Ultra HD (UHD) playback. HDCP 1.4 is also supported on the DVI-D port.
Expansion notes
The operating mode of the single PCIe 3.0 x16 slot (PCIE2) is dependent on the installed CPU: it runs in x16 mode with Ryzen (Vermeer, Matisse, etc.), x8 mode with Ryzen (Picasso, Raven Ridge), and x4 mode with Athlon CPUs. This slot supports NVMe SSD as boot disks. There is also one PCI Express 2.0 x1 slot.
Ultra M.2 Socket
3.0 4 · SATA · 2242, 2260, 2280 · CPU — The slot operates at PCIe Gen3 x4 with Vermeer, Matisse, Cezanne, Renoir, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge CPUs. It operates at PCIe Gen3 x2 with Athlon series APUs.
RAID
SATA (0, 1, 10)
Storage notes
SATA connectors support NCQ, AHCI and Hot Plug. Supports NVMe SSD as boot disks. Supports ASRock U.2 Kit.
USB notes
All USB ports and headers support ESD Protection.
Audio notes
7.1 CH HD Audio. Supports Surge Protection. The rear panel has 3 audio jacks: Line in / Front Speaker / Microphone.
Networking notes
PCIE x1 Gigabit LAN. The RJ-45 LAN Port has an LED (ACT/LINK LED and SPEED LED).
Fan / RGB headers
1 CPU · — OPT · — AIO · 2 chassis · — ARGB · — RGB
Other headers
Front audio · TPM
Dimensions
24.4 cm x 24 cm

Extracted notes sit here. Official manufacturer copy is at the bottom of the page.

Amazon

Price history

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Vendor copy

Official manufacturer data

Raw manufacturer text kept for reference. Structured specs above are extracted from this copy and are the source for scores and tables.

Memory

- Dual Channel DDR4 Memory Technology
- 2 x DDR4 DIMM Slots
- AMD Ryzen series CPUs (Vermeer) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
- AMD Ryzen series CPUs (Matisse) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
- AMD Ryzen series APUs (Cezanne) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
- AMD Ryzen series APUs (Renoir) 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*
- Max. capacity of system memory: 64GB*
- Supports Extreme Memory Profile (XMP) memory modules
- 15μ Gold Contact in DIMM Slots

*For Ryzen Series APUs (Picasso, Cezanne, Renoir and Raven Ridge), ECC is only supported with PRO CPUs.
Please refer to below table for AMD non-XMP memory frequency support.

Graphics

- Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU*
- DirectX 12, Pixel Shader 5.0
- Shared memory default 2GB. Max Shared memory supports up to 16GB.**
- Three graphics output options: D-Sub, DVI-D and HDMI
- Supports Triple Monitor
- Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz
- Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz
- Supports D-Sub with max. resolution up to 2048x1536 @ 60Hz
- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI Port (Compliant HDMI monitor is required)
- Supports HDCP 1.4 with DVI-D and HDMI Ports
- Supports 4K Ultra HD (UHD) playback with HDMI Port

*Actual support may vary by CPU

**The Max shared memory 16GB requires 32GB system memory installed.

Expansion slots

AMD Ryzen series CPUs (Vermeer, Matisse, Cezanne, Renoir, Summit Ridge and Pinnacle Ridge)
- 1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*
AMD Ryzen series CPUs (Picasso, Raven Ridge)
- 1 x PCI Express 3.0 x16 Slot (PCIE2: x8 mode)*
AMD Athlon series CPUs
- 1 x PCI Express 3.0 x16 Slot (PCIE2: x4 mode)*

- 1 x PCI Express 2.0 x1 Slot

*Supports NVMe SSD as boot disks

Storage

- 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
- 1 x Ultra M.2 Socket, supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Vermeer, Matisse, Cezanne, Renoir, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with Athlon series APU)*

*Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit

USB

- 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
- 1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection)
- 2 x USB 2.0 Ports (Supports ESD Protection)
- 4 x USB 3.1 Gen1 Ports (Supports ESD Protection)

Internal I/O

- 1 x COM Port Header
- 1 x TPM Header
- 1 x Chassis Intrusion and Speaker Header
- 1 x CPU Fan Connector (4-pin)*
- 2 x Chassis Fan Connectors (1 x 3-pin, 1 x 4-pin)**
- 1 x 24 pin ATX Power Connector
- 1 x 4 pin 12V Power Connector
- 1 x Front Panel Audio Connector
- 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
- 1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection)

*The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

**The Chassis Fan Connector supports the chassis fan of maximum 1A (12W) fan power.

Rear I/O

- 1 x PS/2 Mouse/Keyboard Port
- 1 x D-Sub Port
- 1 x DVI-D Port
- 1 x HDMI Port
- 2 x USB 2.0 Ports (Supports ESD Protection)
- 4 x USB 3.1 Gen1 Ports (Supports ESD Protection)
- 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
- HD Audio Jacks: Line in / Front Speaker / Microphone

Audio

- 7.1 CH HD Audio (Realtek ALC887/897 Audio Codec)
- Supports Surge Protection

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