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Gigabyte B840M D3HP AM5 Micro-ATX Motherboard DDR5 2x M.2 PCIe 4.0 HDMI + 2x DisplayPort (B840M D3HP)

Brand:
GigaByte
Gigabyte B840M D3HP AM5 Micro-ATX DDR5 Motherboard
Gigabyte B840M D3HP AM5 Micro-ATX Motherboard DDR5 2x M.2 PCIe 4.0 HDMI + 2x DisplayPort (B840M D3HP)
€144.92 inc. VAT
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B840M D3HP
€121.78 €135.31
€144.92 inc. VAT
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Product Code
03:277726
EAN Code
4719331879761
Manufacturer
GigaByte
Quick Specs
Socket & chipset
AM5 · AMD B840
Memory
4x DDR5 · up to 256GB · 8200 MT/s OC
Expansion
PCIe 4.0 x16 + PCIe 3.0 x1 · 2x M.2 Gen4
Connectivity
Gigabit LAN · no Wi-Fi
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Gigabyte B840M D3HP — value AM5 Micro-ATX for wired Ryzen builds

AMD B840 · Socket AM5DDR5 up to 8200 MT/s (OC)2x M.2 PCIe 4.0HDMI 2.1 + 2x DP 1.4

The Gigabyte B840M D3HP (part number B840M D3HP) is an entry Micro-ATX motherboard for AMD Socket AM5 on the B840 chipset, supporting Ryzen 9000, 8000 and 7000 processors — built for office, business and budget gaming PCs connected by Ethernet.

An 8+2+2 digital VRM on a 6-layer PCB powers mainstream Ryzen CPUs, four DDR5 slots take up to 256GB (EXPO/XMP up to 8200 MT/s OC) and two M.2 slots run at PCIe 4.0 x4 directly from the CPU.

The rear panel has Gigabit LAN, a 10 Gbps USB-A, USB-C and three display outputs (HDMI 2.1 plus two DisplayPort 1.4) for multi-monitor desks using Ryzen integrated graphics.

Compatibility note: This model has no Wi-Fi or Bluetooth — choose the B840M D3HP WIFI6E if you need wireless. LAN is 1 Gbps, the extra slot is PCIe 3.0 x1 and the B840 chipset does not allow CPU overclocking. Display outputs need a Ryzen CPU with integrated graphics.

Best For

✓ Wired office and business desktops
✓ Multi-monitor productivity PCs
✓ Budget Ryzen 5 builds
✓ School and lab computers
✓ Compact Micro-ATX cases
✓ Fleet deployments standardising on AM5

Key Features

 
8+2+2 digital VRM
Digital PWM power with premium chokes and capacitors on a 6-layer PCB for stable Ryzen 5 and Ryzen 7 operation.
 
Two Gen4 M.2 from the CPU
M2A (2580/2280) and M2B (2280) run PCIe 4.0 x4 with M.2 Thermal Guard, plus four SATA ports and NVMe RAID 0/1/5/10.
 
Three display outputs
HDMI 2.1 (4096x2160@60) and two DisplayPort 1.4 (3840x2160@144) — up to three screens without a graphics card.
 
Fast USB on the rear
A red 10 Gbps USB 3.2 Gen 2 port and a USB-C 5 Gbps port on the back, plus an internal USB-C header for the case front panel.

Technical Specifications

Identification
Part Number B840M D3HP
EAN/GTIN 4719331879761
MPN B840M D3HP
Brand Gigabyte
Processor & Chipset
Socket AMD AM5
Supported CPUs Ryzen 9000 / 8000 / 7000 Series
Chipset AMD B840
VRM 8+2+2 digital, 6-layer PCB
CPU power 1x 8-pin ATX 12V + 24-pin ATX
Memory
Slots 4x DDR5 DIMM, dual channel
Maximum 256GB (64GB per DIMM)
Speed 5600–6400 MT/s, up to 8200 MT/s (OC)
Type Non-ECC unbuffered 1Rx8/2Rx8/1Rx16 · AMD EXPO and XMP
Expansion & Storage
PCIe x16 (CPU) 1x PCIe 4.0 x16
PCIe x1 (chipset) 1x PCIe 3.0 x1
M.2 M2A_CPU PCIe 4.0 x4 (2580/2280) · M2B_CPU PCIe 4.0 x4 (2280)
SATA 4x SATA 6Gb/s
RAID NVMe RAID 0/1/5/10 (RAID 5 on Ryzen 9000) · SATA RAID 0/1/10
Networking & Audio
LAN Realtek Gigabit (1 Gbps)
Wireless Not included
Audio Realtek HD audio codec, 7.1-channel
Rear I/O
USB 1x USB-C 3.2 Gen 1 · 1x USB-A 3.2 Gen 2 (10 Gbps) · 1x USB-A 3.2 Gen 1 · 3x USB 2.0
Video 1x HDMI 2.1 (4096x2160@60) · 2x DisplayPort 1.4 (3840x2160@144)
Other RJ-45 · 3 audio jacks · Q-Flash Plus button
Internal Connectors
USB headers 1x USB-C 3.2 Gen 1 · 1x USB 3.2 Gen 1 · 1x USB 2.0
Fans & RGB 1x CPU fan · 2x system fan · 3x ARGB Gen2 · 1x RGB
Other 4x SATA · TPM header (GC-TPM2.0 SPI V2)
General
Form factor Micro-ATX, 24.4 x 24.4 cm
BIOS 256 Mbit AMI UEFI · Q-Flash Plus
OS Windows 11 64-bit · Windows 10 64-bit
Software GIGABYTE Control Center

Frequently Asked Questions

Can I add Wi-Fi to the B840M D3HP later?
Yes, with a PCIe x1 Wi-Fi card in the spare slot or a USB adapter; there is no onboard M.2 Wi-Fi slot or antenna connectors, so buying the WIFI6E version is simpler if wireless is needed.
Does it support Ryzen 9000 X3D processors?
Yes, all AM5 Ryzen 9000, 8000 and 7000 CPUs are supported with a suitable BIOS, and Gigabyte X3D Turbo Mode is available; CPU overclocking is not supported on B840.
Can it run three monitors?
Yes, with a Ryzen CPU that has integrated graphics, through HDMI 2.1 and two DisplayPort 1.4 outputs at the same time.
Is Windows 10 supported?
Yes, Gigabyte lists Windows 11 and Windows 10 64-bit.

Singular Expert Insight

The plain D3HP is the lowest-cost way into AM5 from Gigabyte for PCs on a wired network: three display outputs, two Gen4 M.2 slots and a 10 Gbps USB port cover most office needs. Pay a little more for the WIFI6E version if there is any chance the PC will need wireless. Add DDR5 from our DDR5 memory range.
✓ Buy it if you need an affordable AM5 Micro-ATX board for wired office, business or budget gaming PCs.
✕ Skip it if you need Wi-Fi, 2.5GbE or CPU overclocking.
→ Also consider the B840M D3HP WIFI6E for built-in Wi-Fi 6E, or the B840M GAMING X WIFI6E for 2.5GbE.

Features - GigaByte - B840M D3HP

CPU Socket
  • Socket AM5
More Details
Product Code
03:277726
EAN Code
4719331879761
Manufacturer
GigaByte
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