Gigabyte B840M D2H

Name: Gigabyte B840M D2H
Brand: Gigabyte
SKU: 2747

Manufacturer: Gigabyte

The Gigabyte B840M D2H is a Micro-ATX motherboard designed to offer solid performance for various computing needs. Featuring an AM5 CPU socket, it provides a reliable foundation for building or upgrading a system. One of its standout features is its dual BIOS support, ensuring safety and reliability during system changes.

On the technical side, the B840M D2H supports a maximum of 128GB of DDR5 memory with a RAM speed of up to 5200 MHz, overclockable to 7200 MHz. The motherboard also includes 1 PCIe 4.0 x16 slot, 2 M.2 sockets, and 4 SATA 3 connectors for ample expansion. It comes with a 3-year warranty and offers RAID support for multiple configurations like RAID 0, 1, and 10.

Pros

Supports up to 128GB of DDR5 memory, with overclocking capabilities up to 7200 MHz.
Equipped with dual BIOS for added reliability and safety during system updates or failures.
Includes multiple RAID options (RAID 0, 1, 5, 10) for flexible and secure storage configurations.
Has a 7.1-channel audio system, providing a rich sound experience for users.
Compact Micro-ATX form factor allows for a space-efficient build without sacrificing essential features.

Cons

Lacks built-in Bluetooth and Wi-Fi support, requiring additional adapters for wireless connectivity.
Does not support USB Type-C ports or Thunderbolt connections, limiting high-speed peripheral compatibility.
No integrated graphics, meaning a dedicated GPU is necessary for video output.
Does not include S/PDIF Out for digital audio output, limiting audio connection options.
No support for U.2 or mSATA storage, which may be a limitation for users needing those interfaces.

Who is this for?

The Gigabyte B840M D2H is well-suited for users seeking a reliable motherboard with a solid set of features for general computing and gaming setups. It supports up to 128GB of DDR5 memory, making it a good choice for users looking to build a machine capable of handling demanding applications. Additionally, the dual BIOS support adds extra stability and peace of mind, which is ideal for users who frequently tweak or update their systems. Its compact Micro-ATX form factor also makes it a great option for space-constrained builds without compromising on essential features like storage expansion and 7.1 audio.

Who is this NOT for?

This motherboard may not be ideal for users who need advanced connectivity options or high-end graphics performance. The lack of integrated graphics means a dedicated GPU is required, making it less suitable for users on a budget or those building a low-cost system. It also lacks USB Type-C and Thunderbolt support, limiting high-speed peripheral compatibility for users with modern devices that require these connections. Additionally, its absence of Wi-Fi and Bluetooth support makes it less practical for wireless-centric builds.

General info:

CPU socket	AM5
form factor	Micro-ATX
release date	January 2025
supports Wi-Fi	✕
Has Bluetooth	✕
HDMI version	HDMI 2.1
Easy to overclock	✓
has RGB lighting	✕
Easy to reset BIOS	✕
Has dual BIOS	✓
CPU sockets	1
Has integrated graphics	✕
warranty period	3 years
height	244 mm
width	244 mm
Has integrated CPU	✕

The Gigabyte B840M D2H motherboard features an AM5 CPU socket, supporting a single CPU socket configuration. With a compact Micro-ATX form factor, it measures 244mm x 244mm. While it does not include built-in Bluetooth or Wi-Fi support, it does support easy overclocking and features dual BIOS for enhanced system reliability. The board also lacks integrated graphics and an integrated CPU, requiring a dedicated graphics card for video output. Additionally, it offers a 3-year warranty for added peace of mind.

Memory:

maximum memory amount	128GB
RAM speed (max)	5200 MHz
overclocked RAM speed	7200 MHz
memory slots	2
DDR memory version	5
memory channels	2
Supports ECC memory	✕

The Gigabyte B840M D2H motherboard supports a maximum memory capacity of 128GB across its 2 memory slots. It is compatible with DDR5 memory, offering a maximum RAM speed of 5200 MHz, which can be overclocked to 7200 MHz for enhanced performance. The motherboard operates with dual memory channels but does not support ECC memory.

Ports:

USB 3.2 Gen 2 ports (USB-A)	0
USB 3.2 Gen 1 ports (USB-A)	2
USB 3.2 Gen 2 ports (USB-C)	0
USB 3.2 Gen 1 ports (USB-C)	0
USB 2.0 ports	0
USB 3.2 Gen 2x2 ports	0
USB 4 40Gbps ports	0
USB 4 20Gbps ports	0
Thunderbolt 4 ports	0
Thunderbolt 3 ports	0
has an HDMI output	✓
DisplayPort outputs	0
RJ45 ports	1
Has USB Type-C	✕
eSATA ports	0
DVI outputs	0
has a VGA connector	✕
PS/2 ports	1

The Gigabyte B840M D2H motherboard offers a variety of connectivity options, including a single HDMI output and one RJ45 port for networking. It features two USB 3.2 Gen 1 Type-A ports, while other advanced connections such as USB Type-C, Thunderbolt, or DisplayPort are not available. Additionally, the motherboard includes a PS/2 port for legacy peripherals but does not support USB 2.0, eSATA, or VGA connectors.

Connectors:

USB 3.2 Gen 1 ports (through expansion)	2
USB 2.0 ports (through expansion)	4
SATA 3 connectors	4
fan headers	3
USB 3.0 ports (through expansion)	2
M.2 sockets	2
Has TPM connector	✓
U.2 sockets	0
Has mSATA connector	✕
SATA 2 connectors	0

The Gigabyte B840M D2H motherboard offers various expansion options, including two USB 3.2 Gen 1 ports and two additional USB 3.0 ports through expansion. It also includes four SATA 3 connectors and two M.2 sockets for storage. For cooling, there are three fan headers, while the board is equipped with a TPM connector for added security. The motherboard does not support mSATA or U.2 connectors, but it provides ample connectivity for other devices.

Expansion slots:

PCIe 4.0 x16 slots	1
PCIe 5.0 x16 slots	0
PCIe 3.0 x16 slots	0
PCIe x1 slots	0
PCI slots	0
PCIe 2.0 x16 slots	0
PCIe x4 slots	1
PCIe x8 slots	0

The Gigabyte B840M D2H motherboard includes a single PCIe 4.0 x16 slot and one PCIe x4 slot for expansion cards. It does not support PCIe 5.0, PCIe 3.0, or older PCIe standards such as PCIe 2.0 or PCI. The motherboard is designed to provide essential expansion options with limited flexibility for additional high-speed devices.

Audio:

audio channels	7.1
Has S/PDIF Out port	✕
audio connectors	3

The Gigabyte B840M D2H motherboard supports 7.1 audio channels for immersive sound quality, offering a solid audio experience for gaming and media. It includes three audio connectors for various audio device connections, but it does not feature an S/PDIF Out port for digital audio output.

Storage:

Supports RAID 1	✓
Supports RAID 10 (1+0)	✓
Supports RAID 5	✓
Supports RAID 0	✓
Supports RAID 0+1	✕

The Gigabyte B840M D2H motherboard supports multiple RAID configurations, including RAID 0, RAID 1, and RAID 10 (1+0) for flexible storage setups. It also supports RAID 5 for data redundancy and performance but does not support RAID 0+1.

Final Verdict

The Gigabyte B840M D2H is a solid motherboard for users seeking a reliable and compact solution for general computing and gaming. With support for up to 128GB of DDR5 memory and dual BIOS for added stability, it is well-equipped for most use cases. However, the lack of integrated graphics, modern connectivity options like USB Type-C, and wireless support may limit its appeal for users with more advanced needs. Overall, it's a practical choice for space-constrained builds or those prioritizing reliability over cutting-edge features.