AMD B840 Chipset, Socket AM5, 4 DIMMs DDR5 - 8000+ MT/s (OC), 4 x SATA, Wi-Fi 7, 2.5G LAN

Key Features

  • Supports AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors
  • Supports DDR5 Memory, Dual Channel DDR5 8000+ MT/s (OC)
  • Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, additional choke thermal pads and EZ M.2 Shield Frozr II are built for high performance system and non-stop experience
  • High-speed Connectivity: Full-speed Wi-Fi 7 with 2.5G LAN - The latest solution for professional and multimedia use, delivering secure, stable, and high-speed networking and data transmission
  • Ultra Performance: 7+2+1 Phase Direct CPU Power, 8-pin CPU power connector, Core Boost, Memory Boost, 6-layer PCB with 2oz thickened copper
  • Lightning Fast Game experience: PCIe 4.0 slot, Lightning Gen 4 x4 M.2, Front USB Type-C
  • EZ DIY: EZ M.2 Shield Frozr II, EZ M.2 Clip II, EZ PCIe Clip II and EZ Antenna
  • Audio Boost: Reward your ears with studio-grade sound quality for the most immersive gaming experience

Description

B840 GAMING PLUS WIFI
The B840 GAMING PLUS WIFI is crafted to offer extensive connectivity, versatile tools, and a premium Wi-Fi solution for gamers seeking a comprehensive experience. Featuring full-speed Wi-Fi 7, 2.5G LAN, PCIe 4.0 solution and exclusive EZ DIY features, it is ready for 24/7 non-stop gaming optimized for AMD Ryzen™ 9000 series processors.

MSI motherboards are designed with advanced hardware and technology, well-supporting the demanding computing usage of gaming and AI. Moreover, we also introduce AI to MSI Center and BIOS, making everything more effortless than before.

DIRECT 7+2+1 POWER DESIGN
Unleash and sustain excellent performance with an enhanced VRM design built with digital CPU power system, 8-pin power connector and exclusive Core Boost technology, the B840 GAMING PLUS WIFI is ready to sustain heavy gaming loadings.

Extended Heatsink
Extended Heatsink enlarges the surface of heat dissipation and maintain the performance at heavy loads.

M.2 Shield Frozr
Strengthened M.2 thermal solution helps keep M.2 SSD safe and ensures incredible performance.

7W/mK Thermal Pad & Additional Choke Pad
High-quality 7W/mK MOSFET thermal pads and additional choke thermal pads ensure stable performance when all cores are running at high speed.

Enlarged Chipset Heatsink
The enlarged heatsink is designed to reduce dust and noise and capable of maintaining high efficiency of heat dissipation.

HIGH-BANDWIDTH AND LOW-LATENCY NETWORK
MSI's premium network solution provides incredible data transfer speed for demanding users.

Specifications

Internal I/O
Number of M.2 (M) slots 2
USB 3.2 Gen 2 (3.1 Gen 2) connectors 1
Total number of SATA connectors 4
Supported storage drive interfaces M.2, Micro SATA III
USB 2.0 connectors 4
USB 3.2 Gen 1 (3.1 Gen 1) connectors 2
mSATA ports quantity 0
Number of SATA connectors 0
Number of SATA III connectors 4
Number of SATA II connectors 0
Number of chassis fan connectors 5
RGB LED pin header Yes
Number of CPU fan connectors 1
Number of water pump connectors 1
Number of RGB LED pin headers 3
Technical details
Motherboard chipset family AMD
Motherboard chipset AMD B840
Supported processor sockets Socket AM5
PC health monitoring CPU, Fan, Temperature, Voltage
On-board graphics card No
HDMI version 2.1
Motherboard form factor ATX
Component for PC
Total number of SATA connectors 4
Maximum internal memory supported by processor 256 GB
Audio
Audio output channels 7.1 channels
Performance
Number of HDDs supported 4
Supported storage drive types HDD & SSD
Windows operating systems supported Windows 11 x64
Motherboard chipset family AMD
Motherboard chipset AMD B840
RAID levels 0, 1, 10
Supported processor sockets Socket AM5
PC health monitoring CPU, Fan, Temperature, Voltage
Audio output channels 7.1 channels
Motherboard form factor ATX
Component for PC
Processor
Processor manufacturer AMD
Maximum internal memory supported by processor 256 GB
Compatible processor series AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor sockets Socket AM5
Processor socket Socket AM5
Memory
Number of memory slots 4
Memory slots type DIMM
Supported memory types DDR5-SDRAM
Memory channels Dual-channel
Supported memory clock speeds 4800,5600,8000 MHz
Maximum internal memory 256 GB
Supported memory clock speed (max) 8000 MHz
ECC сompatibility Non-ECC
Storage controllers
Number of HDDs supported 4
Supported storage drive types HDD & SSD
Supported storage drive interfaces M.2, Micro SATA III
RAID levels 0, 1, 10
Number of storage drives supported 6
RAID support Yes
Graphics
On-board graphics card No
Rear panel I/O ports
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 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity 1
USB 2.0 ports quantity 4
VGA (D-Sub) ports quantity 0
HDMI version 2.1
HDMI ports quantity 1
Ethernet LAN (RJ-45) ports 1
DVI-D ports quantity 0
Network
Ethernet LAN Yes
Wi-Fi Yes
Wi-Fi standards 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be)
Ethernet interface type 2.5 Gigabit Ethernet
Bluetooth Yes
Bluetooth version 5.4
Top Wi-Fi standard Wi-Fi 7 (802.11be)
Features
Windows operating systems supported Windows 11 x64
Motherboard chipset family AMD
Motherboard chipset AMD B840
Supported processor sockets Socket AM5
PC health monitoring CPU, Fan, Temperature, Voltage
Audio output channels 7.1 channels
Motherboard form factor ATX
Component for PC
Audio chip Realtek ALC897
Product colour Black
Expansion slots
Number of M.2 (M) slots 2
PCI Express x16 (Gen 3.x) slots 4
PCI Express x16 (Gen 4.x) slots 1
1st M.2 largest key size 2280
1st M.2 highest PCI Express generation 4.0
2nd M.2 largest key size 22110
2nd M.2 highest PCI Express generation 4.0
BIOS
BIOS type UEFI AMI
ACPI version 6.5
Software
Windows operating systems supported Windows 11 x64
Weight & dimensions
Width 243.8 mm
Depth 304.8 mm
Other features
mSATA ports quantity 0
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