Gigabyte B840M D2H AMD Ryzen Motherboard: High-Performance mATX Solution
The Gigabyte B840M D2H is a compact yet powerful motherboard designed for AMD Ryzen 7000, 8000, and 9000 series processors. Built with the AMD B840 chipset, it combines reliable durability, advanced connectivity, and gaming-focused optimizations in a micro-ATX form factor. This motherboard supports DDR5 memory, PCIe 4.0 hardware, and high-speed networking, making it a versatile choice for gamers, content creators, and PC enthusiasts.
The B840M D2H motherboard delivers robust gaming performance with support for AMD Socket AM5 processors and dual-channel DDR5 memory. It features multiple PCIe slots including PCIe 4.0 x16 and M.2 storage options, a 2.5GbE LAN port for high-speed networking, and comprehensive thermal controls with Smart Fan 6. One-click performance tuning via X3D Turbo Mode and AI-driven BIOS optimization ensures seamless gaming and overclocking capabilities. Its user-friendly design simplifies assembly and system management while offering durable components for long-lasting reliability.
Performance and Gaming Enhancements
Advanced Power and Thermal Management
High-Speed Storage and Expansion
Future-Ready Connectivity
High-Fidelity Audio
DIY-Friendly Design
Durable and Optimized Build
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Specifications![]() | |
| Product Code | GA-B840M-D2H![]() |
| CPU | AMD Socket AM5, support for: |
| AMD Ryzen 9000 Series Processors/ | |
| AMD Ryzen 8000 Series Processors/ | |
| AMD Ryzen 7000 Series Processors | |
| Chipset | AMD B840 |
| Memory | Support for DDR5 7600(O.C.) / 7200(OC) / 7000(OC) / 6800(OC) / 6666(OC) / 6600(OC) / 6400(OC) / 6200(OC) / 6000(OC) / 5600(OC) / 5200 / 4800 / 4400 MT / s memory modules |
| 2 x DDR5 DIMM sockets supporting up to 128 GB (64 GB single DIMM capacity) of system memory | |
| Dual channel memory architecture | |
| Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules | |
| Support for AMD EXtended Profiles for Overclocking (AMD EXPO ) and Extreme Memory Profile (XMP) memory modules | |
| (The CPU and memory configuration may affect the supported memory types, data rate (speed), and number of DRAM modules, please refer to "Memory Support List" on GIGABYTE's website for more information.) | |
| Onboard Graphics | Integrated Graphics Processor with AMD Radeon Graphics support: |
| - 1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz | |
| * Support for HDMI 2.1 version, HDCP 2.3, and HDR. | |
| ** Support for native HDMI 2.1 TMDS compatible ports. | |
| (Graphics specifications may vary depending on CPU support.) | |
| Audio | Realtek Audio CODEC |
| High Definition Audio | |
| 2/4/5.1/7.1-channel | |
| * You can change the functionality of an audio jack using the audio software. To configure 7.1-channel audio, access the audio software for audio settings. | |
| LAN | Realtek 2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps) |
| Expansion Slots | 1 x PCI Express x16 slot (PCIEX16), integrated in the CPU: |
| AMD Ryzen 9000/7000 Series Processors support PCIe 4.0 x16 mode | |
| AMD Ryzen 8000 Series-Phoenix 1 Processors support PCIe 4.0 x8 mode | |
| AMD Ryzen 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4 mode | |
| * The PCIEX16 slot can only support a graphics card or an NVMe SSD. If only one graphics card is to be installed, be sure to install it in the PCIEX16 slot. | |
| Chipset: | |
| - 1 x PCI Express x16 slot, supporting PCIe 3.0 and running at x4 (PCIEX4) | |
| Storage Interface | 1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2580/2280 SSDs: |
| AMD Ryzen 9000/7000 Series Processors support PCIe 4.0 x4/x2 SSDs | |
| AMD Ryzen 8000 Series-Phoenix 1 Processors support PCIe 4.0 x4/x2 SSDs | |
| AMD Ryzen 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4/x2 SSDs | |
| 1 x M.2 connector (M2C_SB), integrated in the Chipset, supporting Socket 3, M key, type 2280 PCIe 3.0 x2 SSDs | |
| 4 x SATA 6Gb/s connectors | |
| RAID 0, RAID 1, RAID 5, and RAID 10 support for NVMe SSD storage devices | |
| * RAID 5 is only available on AMD Ryzen 9000 Series Processors. | |
| RAID 0, RAID 1, and RAID 10 support for SATA storage devices | |
| USB | CPU: |
| - 2 x USB 3.2 Gen 1 ports on the back panel | |
| CPU+USB 2.0 Hub: | |
| - 4 x USB 2.0/1.1 ports on the back panel | |
| Chipset: | |
| - 2 x USB 3.2 Gen 1 ports available through the internal USB header | |
| - 4 x USB 2.0/1.1 ports available through the internal USB headers | |
| Internal I/O Connectors | 1 x 24-pin ATX main power connector |
| 1 x 8-pin ATX 12V power connector | |
| 1 x CPU fan header | |
| 1 x CPU fan/water cooling pump header | |
| 1 x system fan header | |
| 2 x addressable RGB Gen2 LED strip headers | |
| 1 x RGB LED strip header | |
| 4 x SATA 6Gb/s connectors | |
| 2 x M.2 Socket 3 connectors | |
| 1 x front panel header | |
| 1 x front panel audio header | |
| 1 x USB 3.2 Gen 1 header | |
| 2 x USB 2.0/1.1 headers | |
| 1 x Trusted Platform Module header (For the GC-TPM2.0 SPI/GC-TPM2.0 SPI 2.0/GC-TPM2.0 SPI V2 module only) | |
| 1 x reset jumper | |
| 1 x Clear CMOS jumper | |
| Back Panel Connectors | 1 x PS/2 keyboard/mouse port |
| 2 x USB 3.2 Gen 1 ports | |
| 4 x USB 2.0/1.1 ports | |
| 1 x HDMI port | |
| 1 x Q-Flash Plus button | |
| 1 x RJ-45 port | |
| 3 x audio jacks | |
| * Actual support may vary by CPU. | |
| I/O Controller | iTE I/O Controller Chip |
| H/W Monitoring | Voltage detection |
| Temperature detection | |
| Fan speed detection | |
| Water cooling flow rate detection | |
| Fan fail warning | |
| Fan speed control | |
| * Whether the fan (pump) speed control function is supported will depend on the fan (pump) you install. | |
| BIOS | 1 x 256 Mbit flash |
| Use of licensed AMI UEFI BIOS | |
| PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0 | |
| Unique Features | Support for GIGABYTE Control Center (GCC) |
| * Available applications in GCC may vary by motherboard model. Supported functions of each application may also vary depending on motherboard specifications. | |
| Support for Q-Flash | |
| Support for Q-Flash Plus | |
| Support for Smart Backup | |
| Bundled Software | Norton Internet Security (OEM version) |
| LAN bandwidth management software | |
| Operating System | Support for Windows 11 64-bit |
| Support for Windows 10 64-bit | |
| Form Factor | Micro ATX Form Factor , 24.4cm x 24.4cm |
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