| Technical details | |
| Warranty period | 3 year(s) |
| Processor | |
| Processor manufacturer | AMD |
| Compatible processor series | AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Processor socket | AM5 |
| Supported processor sockets | Socket AM5 |
| Memory | |
| Maximum internal memory | 128 GB |
| ECC | ![]() |
| Non-ECC | ![]() |
| Supported memory clock speeds | 7200,7000,6800,6666,6600,6400,6200,6000,5600,5200,4800,4400 MHz |
| Supported memory types | DDR5 |
| Memory channels | Dual-channel |
| Unbuffered memory | ![]() |
| Memory slots type | DIMM |
| Number of memory slots | 2 |
| Supported memory clock speed (max) | 7200 MHz |
| Maximum internal memory per slot | 64 GB |
| ECC сompatibility | Non-ECC |
| Weight & dimensions | |
| Height | 35 mm |
| Width | 230 mm |
| Depth | 225 mm |
| Networking | |
| Ethernet LAN | ![]() |
| Bluetooth | ![]() |
| LAN controller | Realtek RTL8111H |
| Wi-Fi | ![]() |
| Ethernet interface type | Gigabit Ethernet |
| Internal I/O | |
| USB 2.0 connectors | 2 |
| CPU fan connector | ![]() |
| ATX Power connector (24-pin) | ![]() |
| Number of chassis fan connectors | 2 |
| Front panel audio connector | ![]() |
| TPM connector | ![]() |
| EPS power connector (8-pin) | ![]() |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| Number of SATA III connectors | 4 |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors | 0 |
| Front panel connector | ![]() |
| 12V power connector | ![]() |
| RGB LED pin header | ![]() |
| Number of RGB LED pin headers | 3 |
| Number of CPU fan connectors | 1 |
| Number of EPS power connectors (8-pin) | 1 |
| Back panel I/O ports | |
| PS/2 ports quantity | 1 |
| Line-in | ![]() |
| USB 2.0 ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| Headphone outputs | 1 |
| Microphone in | ![]() |
| VGA (D-Sub) ports quantity | 0 |
| DVI-D ports quantity | 0 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| DisplayPort version | 1.4 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 0 |
| Storage controllers | |
| RAID levels | 0, 1, 5, 10 |
| Number of HDDs supported | 4 |
| RAID support | ![]() |
| Number of storage drives supported | 5 |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | M.2, PCI Express 4.0, SATA III |
| Packaging data | |
| Package weight | 941 g |
| Package depth | 265 mm |
| Package height | 54 mm |
| Package width | 265 mm |
| Packaging content | |
| Bundled software | Norton® Internet Security (OEM version) |
| Batteries included | ![]() |
| Screws included | ![]() |
| Expansion slots | |
| PCI Express x16 slots | 1 |
| PCI Express x1 slots | 1 |
| PCI Express x1 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 1 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| 1st M.2 largest key size | 2580 |
| 1st M.2 highest PCI Express generation | 4.0 |
| BIOS | |
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI AMI |
| ACPI version | 5.0 |
| Clear CMOS button | ![]() |
| Clear CMOS jumper | ![]() |
| Desktop Management Interface (DMI) version | 2.7 |
| System Management BIOS (SMBIOS) version | 2.7 |
| Battery | |
| Battery technology | Lithium-Manganese Dioxide (LiMnO2) |
| Battery type | CR2032 |
| Number of battery cells | 1 |
| Battery weight | 3 g |
| Lithium weight per battery | 0.07 g |
| Other features | |
| Weight | 880 g |
| Graphics | |
| Maximum resolution | 4096 x 2160 pixels |
| Parallel processing technology support | Not supported |
| DirectX version | 12.0 |
| HDCP | ![]() |
| HDCP version | 2.3 |
| Features | |
| Motherboard chipset | AMD B840 |
| Motherboard form factor | Micro ATX |
| Product colour | Dark brown |
| Audio output channels | 7.1 channels |
| Cooling type | Passive |
| PC health monitoring | Fan, Temperature, Voltage, Water cooling |
| Windows operating systems supported | Windows 10 x64, Windows 11 x64 |
| Power source type | ATX |
| Motherboard chipset family | AMD |
| Component for | PC |
| Audio chip | Realtek ALC897 |
| Logistics data | |
| Products per shipping (inner) case | 1 pc(s) |
| EAN | 4719331877880 |
The GIGABYTE B840M H is a micro ATX motherboard built on the AMD B840 chipset, designed for AMD Ryzen 7000, 8000, and 9000 series processors using the AM5 socket. It accommodates up to 128 GB of dual-channel DDR5 memory, with overclocked speeds reaching 7200 MHz. This platform is engineered for compact PC builds intended for general computing, light content creation, or standard gaming workloads. The board's layout provides a stable foundation for current-generation CPUs and high-speed memory.
For expansion and connectivity, the motherboard includes a single PCIe 4.0 x16 slot for a dedicated graphics card and one PCIe 4.0 M.2 slot for high-speed NVMe storage. Additional storage options are available through four SATA III ports. The rear I/O panel features DisplayPort 1.4 and HDMI 2.1 outputs for use with integrated graphics. Networking is handled by a Gigabit Ethernet controller. System management is supported by features such as Q-Flash Plus for simplified BIOS updates.
Key Features:- Supports AMD Ryzen 7000, 8000, and 9000 series processors
- Features a Micro ATX form factor
- Utilizes the AMD B840 chipset
- Provides two DDR5 DIMM slots for up to 128 GB of memory
- Includes one M.2 PCIe 4.0 connector and four SATA III ports
- Offers one PCIe 4.0 x16 expansion slot
- Equipped with a 1GbE LAN port for wired internet
- Features Realtek ALC897 audio chipset
- Supports RAID levels 0, 1, 5, and 10
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