ASROCK A320M-HDV R4.0 DDR4 AMD Motherboard
MPN ASROCK-320M-HDV-R4.0 · Brand ASROCK · mATX
The ASRock A320M-HDV R4.0 is a Micro ATX motherboard for AMD AM4 Ryzen and A-Series processors, featuring DDR4 3200+(OC) support, triple display output (HDMI/DVI-D/D-Sub), M.2 PCIe Gen3 x4 storage, and 7.1 CH HD audio with ELNA capacitors
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Overview
The ASRock A320M-HDV R4.0 is a Micro ATX motherboard built on the AMD A320 (Promontory) chipset, designed for AMD Socket AM4 processors. It supports a broad range of CPUs including AMD Ryzen series (Matisse, Picasso, Summit Ridge, Raven Ridge, and Pinnacle Ridge) as well as AMD 7th Gen A-Series APUs (Bristol Ridge), with a maximum TDP of 105W and a 6-phase power design. For memory, the board provides two DDR4 DIMM slots in a dual-channel configuration, with a maximum capacity of 32GB. Supported frequencies vary by CPU: Matisse CPUs support DDR4 up to 3200 MHz natively; Pinnacle Ridge and Summit Ridge support DDR4 3200+(OC); Picasso and Raven Ridge APUs top out at 2933 MHz. DIMM slots feature 15μ gold contacts for reliable long-term connectivity. Display output is handled through three rear-panel video ports — D-Sub (up to 2048×1536 @ 60Hz), DVI-D (up to 1920×1200 @ 60Hz), and HDMI 1.4 (up to 3840×2160 @ 30Hz) — enabling simultaneous triple-monitor operation when using an APU with integrated graphics. DirectX 12 and Pixel Shader 5.0 are supported, with shared graphics memory defaulting to 2GB and scaling up to 16GB with 32GB of system RAM installed. Storage connectivity includes four SATA3 6.0 Gb/s ports supporting RAID 0, 1, and 10, plus one Ultra M.2 socket (Key M, sizes 2242/2260/2280) capable of PCIe Gen3 x4 (32 Gb/s) with compatible Ryzen CPUs or PCIe Gen3 x2 with A-Series and Athlon APUs; SATA3 M.2 modules are also supported. NVMe SSDs are supported as boot drives. Connectivity on the rear I/O panel includes four USB 3.1 Gen1 ports, two USB 2.0 ports, a PS/2 keyboard/mouse combo port, and a Gigabit Ethernet port powered by the Realtek RTL8111H controller with Wake- LAN and Energy Efficient Ethernet (802.3az) support. Audio is delivered via a Realtek ALC887 codec offering 7.1-channel HD audio, with ELNA audio capacitors fitted to reduce leakage current and noise. Full Spike Protection covers all USB, audio, and LAN ports. The board uses a 128Mb AMI UEFI BIOS with graphical interface, ACPI 5.1 support, jumperfree configuration, and DRAM voltage adjustment. Hardware monitoring covers CPU and chassis temperatures, fan speeds (with multi-speed fan control), case-open detection, and voltage rails (+12V, +5V, +3.3V, Vcore). Verified Specifications: - Form Factor: Micro ATX, 23.0 cm × 20.1 cm (9.0 in × 7.9 in) - Chipset: AMD A320 (Promontory) - Socket: AMD AM4 - Memory: 2× DDR4 DIMM, max 32GB, dual-channel, up to DDR4 3200+(OC) - Expansion: 1× PCIe 3.0 x16, 1× PCIe 2.0 x1 - Storage: 4× SATA3 6.0 Gb/s (RAID 0/1/10), 1× Ultra M.2 PCIe Gen3 x4/SATA3 - Display: D-Sub, DVI-D, HDMI 1.4 (triple monitor capable) - Audio: Realtek ALC887, 7.1 CH HD, ELNA audio caps - LAN: Realtek RTL8111H Gigabit Ethernet - USB: 6× USB 3.1 Gen1 (4 rear + 2 front header), 4× USB 2.0 header ports - BIOS: 128Mb AMI UEFI - Warranty: 3 Years - Certifications: FCC, CE, ErP/EuP ready
Datasheet
| Warranty | 3 Years |
|---|---|
| Form Factor | mATX |
| Chipset | – AMD Promontory A320 |
| CPU Type | – Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge)- 6 Power Phase design- Supports CPU up to 105W |
| Os | – Microsoft® Windows® 10 64-bit |
| Lan | – PCIE x1 Gigabit LAN 10/100/1000 Mb/s- Realtek RTL8111H- Supports Wake-On-LAN- Supports Lightning/ESD Protection- Supports Energy Efficient Ethernet 802.3az- Supports PXE |
| Bios | – 128Mb AMI UEFI Legal BIOS with GUI support- Supports "Plug and Play"- ACPI 5.1 compliance wake up events- Supports jumperfree- SMBIOS 2.3 support- DRAM Voltage multi-adjustment |
| Audio | – 7.1 CH HD Audio (Realtek ALC887 Audio Codec)- Supports Surge Protection- ELNA Audio Caps |
| Slots | AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge)- 1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*AMD 7th A-Series APUs- 1 x PCI Express 3.0 x16 Slot (PCIE2: x8 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 |
| Memory | – Dual Channel DDR4 Memory Technology- 2 x DDR4 DIMM Slots- AMD Ryzen series CPUs (Matisse) 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*- AMD 7th Gen A-Series APUs support DDR4 2400 / 2133 non-ECC, un-buffered memory*- Max. capacity of system memory: 32GB**- 15μ Gold Contact in DIMM Slots*For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs.Please refer to below table for DDR4 UDIMM maximum frequency support.**Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows® 32-bit OS. For Windows® 64-bit OS with 64-bit CPU, there is no such limitation |
| 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 Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with A-Series APU and Athlon series APU)**Supports NVMe SSD as boot disksSupports ASRock U.2 Kit |
| Graphics | – Integrated AMD Radeon™ Vega Series Graphics in Ryzen Series APU*- Integrated AMD Radeon™ R-Series Graphics in A-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 (4096×2160) @ 24Hz / (3840×2160) @ 30Hz- Supports DVI-D with max. resolution up to 1920×1200 @ 60Hz- Supports D-Sub with max. resolution up to 2048×1536 @ 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 1.4 Ports- Supports Full HD 1080p Blu-ray (BD) playback with DVI-D and HDMI Ports*Actual support may vary by CPU**The Max shared memory 16GB requires 32GB system memory installed |
| Connector | – 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 4-pin, 1 x 3-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 |
| Support Cd | – Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar |
| Accessories | – Quick Installation Guide, Support CD, I/O Shield- 2 x SATA Data Cables- 1 x Screw for M.2 Socket |
| Certifications | – FCC, CE- ErP/EuP ready (ErP/EuP ready power supply is required) |
| Rear Panel 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 |
| Unique Feature | ASRock Super Alloy- High Density Glass Fabric PCB- Sapphire Black PCBASRock Ultra M.2 (PCIe Gen3 x4 & SATA3)ASRock Full Spike Protection (for all USB, Audio, LAN Ports)ASRock Live Update & APP Shop |
| Hardware Monitor | – CPU/Chassis temperature sensing- CPU/Chassis Fan Tachometer- CPU/Chassis Quiet Fan- CPU/Chassis Fan multi-speed control- CASE OPEN detection- Voltage monitoring: +12V, +5V, +3.3V, Vcore |
| Software And Uefi | Software- ASRock Motherboard Utility (A-Tuning)- ASRock APP Charger- ASRock XFast LANUEFI- ASRock Full HD UEFI- ASRock Instant Flash- ASRock Easy RAID Installer*These utilities can be downloaded from ASRock Live Update & APP Shop |




