ASROCK B450M-HDV R4.0
ASROCK B450M-HDV R4.0 Specifications Review
ASROCK B450M-HDV R4.0 by Asrock is a Micro-ATX form factor motherboard based on the mid-range B450M chipset and AM4 socket, providing a balanced set of features and connectivity. It is designed to support DDR4 memory, with 2 slots, a maximum capacity of 64 GB, and an overclocking speed of up to 3200 MHz. It features channels, a voltage of V and supports Error-Correcting Code (ECC) memory.
VRM Quality
The ASROCK B450M-HDV R4.0 has a basic VRM configuration, delivering 50 A across 5 phases. Best for low-power CPUs (≤65 W TDP). Using high-wattage chips or overclocking could cause severe thermal issues and instability. Recommended for budget builds, office workstations, and media PCs.
See the VRM Appropriate CPU Specification Table at the bottom of this page for recommended CPU options.
Expansion and Storage Overview
The ASROCK B450M-HDV R4.0 offers a simplified expansion and storage configuration with PCIe 3.0 support, meaning it uses PCI Express 3.0, still capable for most current GPUs and expansion cards, but with less bandwidth than newer standards. It also includes 1 x16 slot , and 1 x1 slot. These PCIe slots are used to connect expansion cards — with the x16 slots typically reserved for graphics cards, while x8, x4, and x1 slots are used for devices like capture cards, sound cards, or network adapters.
For storage, this motherboard provides 1 M.2 slot (Gen3 x4, Gen3 x2) and 4 SATA ports. M.2 slots are high-speed connectors for modern NVMe SSDs, which are much faster than older storage, while SATA ports are used for traditional hard drives and 2.5-inch SSDs. Together, they allow you to mix fast primary storage with larger, more affordable drives for bulk data.
Connectivity Overview
This motherboard has essential connectivity features with wired PCIE x1 Gigabit LAN 10/100/1000 Mb/s Ethernet . USB connectivity covers basic needs. Please refer to the specification table for details.
For video output, this motherboard includes HDMI . These video outputs are intended for integrated graphics and will only function if your CPU includes integrated GPU capabilities.
Audio Quality
The motherboard includes a standard audio chipset (Realtek ALC887/897) that covers basic needs for casual listening. While adequate for everyday use with mainstream headphones or desktop speakers, discerning users may want to add a USB DAC or sound card for improved fidelity, especially for music production or high-end headphones.
Overall Quality and Value
ASROCK B450M-HDV R4.0 is minimalist and barebones, with a low overall quality score of 33.80. It is suitable only for very basic computing needs or legacy systems where performance, connectivity, and features are limited, best reserved for simple, low-demand environments.
This motherboard offers an impressive 89.2% performance-to-price ratio, delivering excellent value by combining strong performance with reasonable cost, making it a smart choice for budget-conscious buyers who don’t want to sacrifice quality.
General Information
| Manufacturer | Asrock |
|---|---|
| Motherboard Name | ASROCK B450M-HDV R4.0 |
| Current Price Amazon | $72 |
| Amazon Price Updated | 10 hours ago. |
| Motherboard Available | True |
| Chipset / Socket | B450M / AM4 |
| Form Factor | Micro-ATX |
VRM Configuration
| CPU Power Phases (Amps) | 5 (50 A) |
|---|---|
| Power Design | 5+1 |
Memory Information
| Type / Slots | DDR4 / 2 slots |
|---|---|
| Max Capacity / Max OC | 64 GB / 3200 MHz |
| ECC Support | ✔️ ECC (Error-Correcting Code) Supported |
PCIe Slot Configuration
| Supported Version | PCIe 3.0 | ||||
|---|---|---|---|---|---|
| Slot Size | Physical Slots | Gen3 |
|---|---|---|
| x16 | 1 | 1 |
| x1 | 1 | 0 |
Storage Configuration
| M.2 Slot Count | 1 slot |
|---|---|
| M.2 Supported Lengths | 2242, 2260, 2280 |
| M.2 PCIe Modes | Gen3 x4, Gen3 x2 |
| SATA Ports | 4 |
Onboard Audio Features
| Audio Chipset | Realtek ALC887/897 |
|---|---|
| Analog Audio Jacks | 3 jacks |
Motherboard Display Outputs
| HDMI Output | HDMI (Max: 4096x2160 @ 24Hz / 3840x2160 @ 30Hz) |
|---|
USB and Thunderbolt Connectivity
Rear USB Ports
| USB 2.0 Type-A (480 Mbps) | 2 |
|---|---|
| USB 3.2 Gen 1 Type-A (5 Gbps) | 4 |
Internal USB Headers
| USB 2.0 Header (480 Mbps) | 4 |
|---|---|
| USB 3.2 Gen 1 Header (5 Gbps) | 2 |
Networking Information
| Ethernet | Chipset: PCIE x1 Gigabit LAN 10/100/1000 Mb/s LAN Ports: 1 |
|---|---|
| Wi-Fi |
Module: Not Included |
| Bluetooth | Supported: No |
Quality & Features
Additional Information
| RAM | 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 | 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 | 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. |
| Storage |
M.2 Slot Details:
SATA connectors support NCQ, AHCI and Hot Plug. Supports NVMe SSD as boot disks. Supports ASRock U.2 Kit. |
| Audio | 7.1 CH HD Audio. Supports Surge Protection. The rear panel has 3 audio jacks: Line in / Front Speaker / Microphone. |
| Networking | PCIE x1 Gigabit LAN. The RJ-45 LAN Port has an LED (ACT/LINK LED and SPEED LED). |
| Dimensions | 24.4 cm x 24 cm |
Note: The specifications and descriptions above are extracted by AI to present the official manufacturer data in a clearer and more natural way for easier understanding. However, this AI-processed information may contain inaccuracies. Please verify all details by consulting the official manufacturer's information provided below.
ASROCK B450M-HDV R4.0 Compared to Motherboards with Similar Performance and Features
Motherboard Quality & Features per Price Table
| Motherboard (Desc) | Price (Desc) | Overall_Q (Desc) | VRM_Q (Desc) | Chipset (Desc) | Exp_Str (Desc) | Connect (Desc) | Audio (Desc) | Q&F/Price (Desc) |
|---|---|---|---|---|---|---|---|---|
|
$97
|
↑
1.9%
|
40.4%
|
13.0%
|
67.0%
|
49.0%
|
33.0%
|
40.0%
|
79.3%
|
|
|
$80❗
|
↓
-1.4%
|
38.0%
|
13.0%
|
58.0%
|
37.0%
|
37.0%
|
45.0%
|
90.7%
|
|
|
$188❗
|
0.0%
|
37.8%
|
14.0%
|
77.0%
|
45.0%
|
13.0%
|
40.0%
|
38.2%
|
|
|
$100
|
0.0%
|
36.2%
|
18.0%
|
49.0%
|
35.0%
|
39.0%
|
40.0%
|
68.8%
|
|
|
$72
|
0.0%
|
33.8%
|
12.0%
|
58.0%
|
30.0%
|
29.0%
|
40.0%
|
89.2%
|
|
|
$146
|
↑
38.8%
|
33.0%
|
24.0%
|
41.0%
|
29.0%
|
31.0%
|
40.0%
|
43.0%
|
|
|
$127
|
↑
0.1%
|
32.4%
|
15.0%
|
47.0%
|
29.0%
|
31.0%
|
40.0%
|
48.6%
|
|
|
$64
|
0.0%
|
31.0%
|
12.0%
|
37.0%
|
32.0%
|
29.0%
|
45.0%
|
92.1%
|
|
|
$64
|
↑
0.8%
|
30.4%
|
13.0%
|
38.0%
|
27.0%
|
29.0%
|
45.0%
|
89.6%
|
Motherboard Comparison and Detail Specifications Table
| Specification | Perf Chart | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Price |
$97
|
↑
1.9%
|
$80❗
|
↓
-1.4%
|
$188❗
|
0.0%
|
$100
|
0.0%
|
$72
|
0.0%
|
$146
|
↑
38.8%
|
$127
|
↑
0.1%
|
$64
|
0.0%
|
$64
|
↑
0.8%
|
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| Manufacturer | ASUS | ASRock | MSI | ASUS | Asrock | ASRock | GIGABYTE | GIGABYTE | MSI | ||||||||||||||||||||||||||||||||||||
| Chip/Socket | B450M / AM4 | B450M / AM4 | B550 / AM4 | A520M / AM4 | B450M / AM4 | A520M / AM4 | A520I / AM4 | A520M / AM4 | A520M / AM4 | ||||||||||||||||||||||||||||||||||||
| Form | Micro-ATX | Micro-ATX | Standard-ATX | Micro-ATX | Micro-ATX | Mini-ITX | Mini-ITX | Micro-ATX | Micro-ATX | ||||||||||||||||||||||||||||||||||||
| CPU Phases | 5 (50 A) | 6 (42 A) | 5 (55 A) | 6 (60 A) | 5 (50 A) | 8 (60 A) | 6 (50 A) | 5 (50 A) | 5 (50 A) | ||||||||||||||||||||||||||||||||||||
| PWR Design | 5+1 | 6+2 | 5+1 | 6+1 | 5+1 | 8+1 | 6+1 | 5+1 | 5+1 | ||||||||||||||||||||||||||||||||||||
| Mem Slots | 4 / DDR4 | 4 / DDR4 | 4 / DDR4 | 4 / DDR4 | 2 / DDR4 | 2 / DDR4 | 2 / DDR4 | 2 / DDR4 | 2 / DDR4 | ||||||||||||||||||||||||||||||||||||
| Max Mem | 128 GB / 4400 MHz | 128 GB / 3200 MHz | 128 GB / 4400 MHz | 128 GB / 4866 MHz | 64 GB / 3200 MHz | 64 GB / 4733 MHz | 64 GB / 5300 MHz | 64 GB / 5100 MHz | 64 GB / 4600 MHz | ||||||||||||||||||||||||||||||||||||
| PCIe | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | PCIe 3.0 | ||||||||||||||||||||||||||||||||||||
| PCIe Slots | 3x16 Gen3 | 2x1 | 1x16 Gen3 | 1x1 | 2x16 Gen3 | 4x1 | 1x16 Gen3 | 2x1 Gen3 | 1x16 Gen3 | 1x1 | 1x16 Gen3 | 1x16 Gen3 | 1x16 Gen3 | 1x1 Gen3 | 1x16 Gen3 | 1x1 Gen3 | ||||||||||||||||||||||||||||||||||||
| M.2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||||||||||||||||||||||||||||||
| SATA | 6 | 4 | 6 | 4 | 4 | 4 | 4 | 4 | 4 | ||||||||||||||||||||||||||||||||||||
| Audio | Realtek ALC887/897 | Realtek ALC892/897 Audio Codec | Realtek® ALC897 Codec | Realtek ALC887/897 | Realtek ALC887/897 | Realtek ALC887/897 Audio Codec | Realtek® Audio CODEC | Realtek® ALC892/ALC897 | Realtek® ALC892/ALC897 Codec | ||||||||||||||||||||||||||||||||||||
| S/PDIF | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ||||||||||||||||||||||||||||||||||||
| HDMI | ✔️ (None) | ✔️ (1.4) | ✔️ (2.0b) | ✔️ (2.1) | ✔️ (None) | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ✔️ (2.1) | ||||||||||||||||||||||||||||||||||||
| DP | ❌ | ❌ | ❌ | ✔️ (1.2) | ❌ | ✔️ (1.4) | ✔️ (1.4) | ❌ | ❌ | ||||||||||||||||||||||||||||||||||||
| LAN | Realtek® RTL8111H (1 ports) | PCIE x1 Gigabit LAN 10/1… (1 ports) | 1x Realtek® RTL8111H LAN… (1 ports) | 1 x Realtek 1Gb Ethernet… (1 ports) | PCIE x1 Gigabit LAN 10/1… (1 ports) | PCIE x1 Gigabit LAN 10/1… (1 ports) | Realtek® GbE LAN chip (1 ports) | Realtek® GbE LAN chip (1… (1 ports) | 1x Realtek® RTL8111H Gig… (1 ports) | ||||||||||||||||||||||||||||||||||||
| Wi-Fi | ❌ | ❌ | ❌ | Wi-Fi Wi-Fi 5 | ❌ | Wi-Fi 802.11ac | Wi-Fi 802.11ac | ❌ | ❌ | ||||||||||||||||||||||||||||||||||||
| BT | ❌ | ❌ | ❌ | v5.0 | ❌ | v4.2 | v4.2 | ❌ | ❌ | Rear USB |
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❌ |
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| USB Headers |
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| Front USB |
|
❌ |
❌ |
❌ |
❌ |
❌ |
❌ |
❌ |
❌ |
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VRM Appropriate CPU Specification Table
| CPU | Price | App_Performance | Game_Performance | TDP/Max | C/SC/T | L2/L3 Cache | Base/Boost | Code Name | GPU |
|---|---|---|---|---|---|---|---|---|---|
| No compatible CPU available. The motherboard's VRM is too weak to be recommended with any CPU in the database. | |||||||||
Official Manufacturer Data
Memory:
- 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:
- 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.
Storage:
- 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
Expansion Slots:
- 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
USB:
- 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 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.
Back Panel I/O:
- 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:
- Supports Surge Protection
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