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Gigabyte B840M Gaming Plus WIFI6E mATX motherboard, black PCB with silver heatsinks and integrated rear I/O shield

GIGABYTE

GIGABYTE B840M GAMING PLUS WIFI6E AMD motherboard

SKU CH-GFZ9-DMM8T MPN B840M GAMING PLUS WIFI6E

Micro-ATX AM5 board supports Ryzen 7000, 8000 and 9000 CPUs with 8+2+2 power phases, four DDR5 slots up to 6400 MT/s, two PCIe 4.0 M.2 slots, USB 3.2 Gen 1 Type-C, Wi-Fi 6E and Bluetooth 5.3

  • CPU socketAM5
  • ChipsetAMD B840
  • Form factorMicro ATX
  • South bridgeAMD B840
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 6400
  • Supports Ryzen 9000, 8000 and 7000 series processors on AM5 socket
  • 8+2+2 digital VRM with six-layer PCB delivers stable power for high-end CPUs
  • Four DDR5 slots up to 256 GB with EXPO support for faster memory
  • Two PCIe 4.0 M.2 slots (2280/2260) plus four SATA ports for storage expansion
  • Wi-Fi 6E, Bluetooth 5.3 and GbE LAN provide low-latency wired and wireless networking

Socket AM5 DDR5 Platform

The B840M GAMING PLUS WIFI6E is an AMD AM5 micro-ATX motherboard built for Ryzen 9000, 8000 and 7000 series processors. It delivers an 8+2+2 digital VRM on a 6-layer PCB to keep power delivery stable under load. Four 288-pin slots support up to 256 GB of DDR5 6400 with AMD EXPO profiles for straightforward memory tuning.

Build Integration Essentials

A single PCIe 4.0 x16 slot with reinforced UD latch handles the graphics card while two CPU-sourced M.2 sockets accept 2280 or 2260 drives at PCIe 4.0 x4 speeds. Four SATA 6Gb/s ports and RAID 0/1/10 cover additional storage. Rear I/O supplies USB 3.2 Gen 2 Type-A, USB 3.2 Gen 1 Type-A and Type-C plus a front-panel USB 3.2 Gen 1 Type-C header for case connectivity.

EZ-Latch And Wireless Suite

PCIe EZ-Latch releases the graphics card with one click and M.2 EZ-Latch secures drives without screws. WIFI EZ-Plug simplifies antenna attachment for the onboard Wi-Fi 6E and Bluetooth 5.3 module. The integrated I/O shield speeds assembly and the BIOS adds X3D Turbo Mode for one-click gaming optimisation on compatible Ryzen CPUs.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $99.99
Cheaper than about 76% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameGIGABYTE
Product lineGAMING
Processor
CPU socketAM5
ChipsetAMD B840
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 6400
Max supported RAM256 GB
Memory channelsDual Channel
Memory profilesAMD EXPO / Intel XMP
ECC supportNon-ECC
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsM.2_1 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices
SATA and RAID support0/1/10
Graphics
Onboard video chipAMD Radeon Graphics
Audio & video
Audio chipRealtek Audio CODEC
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek GbE LAN chip
Maximum network speed1 Gbit/s
Wi-Fi standardWiFi IEEE 802.11 a / b / g / n / ac / ax
Bluetooth supportYes
Ports & slots
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16
PCIe x16 slots1 x PCI Express x16
PCIe x1 slots1 x PCI Express x1
Rear panel ports1 x USB Type-C, 1 x USB 3.2 Gen 2 Type-A, 1 x USB 3.2 Gen 1, 3 x USB 2.0/1.1, 1 x HDMI, 2 x DisplayPort, 1 x Q-Flash Plus button, 1 x RJ-45, 2 x antenna connectors, 3 x audio jacks
Video connectorsHDMI + 2 x Display Port
HDMI ports1 x HDMI
Ethernet port1 x RJ45
DisplayPort connectors2 x DisplayPort
USB 3.0 ports5 x USB 3.0
USB 2.0 ports3 x USB 2.0/1.1 ports
USB-C ports2 x USB Type-C port, with USB 3.2 Gen 1 support
Audio jacks3 Ports
Onboard USB headers1 x USB Type-C header, with USB 3.2 Gen 1 + 1 x USB 3.2 Gen 1 + 1 x USB 2.0
Power
Power connectors24 Pin
Size & build
Form factorMicro ATX
Width and length24.4 cm × 24.4 cm
Shipping weight1.13 kg
Package size269 × 267 × 71 mm
Compatibility
Windows 11 supportSupported
More details
South bridgeAMD B840
PCI express 2.0 x160 x PCI Express 2.0 x16
S-videoNo
LightingRGB

Questions about this item

How does the 8+2+2 VRM handle heat during sustained loads?

The 8+2+2 digital VRM uses advanced heatsinks on a six-layer PCB to dissipate heat and keep power delivery stable under continuous use.

What noise or thermal output should I expect from the board itself when running all day?

The motherboard is passively cooled with VRM heatsinks and an integrated I/O shield, so it adds no fan noise and minimal heat to the chassis.

Which DDR5 memory kit do I need to have ready for this board to post?

You need unbuffered non-ECC DDR5 DIMMs; the board supports up to 256 GB across four slots at 6400 MT/s with AMD EXPO profiles.

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