MSI B840 Gaming Plus WIFI AM5 ATX Motherboard (B840 GAMING PLUS WIFI)

CPU

Supports AMD Ryzen „¢ 9000/ 8000/ 7000 Series Desktop Processors
Socket AM5

Memory

4x DDR5 UDIMM, Maximum Memory Capacity 256GB
Memory Support DDR5 8000 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s
Ryzen „¢ 9000 Series Processors max. overclocking frequency:
€¢ 1DPC 1R Max speed up to 8000+ MT/s
€¢ 1DPC 2R Max speed up to 6400+ MT/s
€¢ 2DPC 1R Max speed up to 6400+ MT/s
€¢ 2DPC 2R Max speed up to 5600+ MT/s

Supports AMD POR Speed and JEDEC Speed
Supports Memory Overclocking and AMD EXPO^TM
Supports Dual-Channel mode
Supports Non-ECC, Un-buffered memory
Supports CUDIMM, Clock Driver bypass mode only*

* CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility.
€¢ Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product €™s Support page or visit https://www.msi.com/support/.

Onboard Graphics

1x HDMI „¢
Support HDMI „¢ 2.1, maximum resolution of 4K 60Hz*
*Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.

Slot

5x PCI-E x16 slot
PCI_E1 Gen PCIe 4.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E3 Gen PCIe 3.0 supports up to x1 (From Chipset)
PCI_E4 Gen PCIe 3.0 supports up to x4 (From Chipset)
PCI_E5 Gen PCIe 3.0 supports up to x1 (From Chipset)

PCI_E1 slot
€¢ Supports PCIe 4.0 x16 (For Ryzen „¢ 9000/ 7000 Series processors)
€¢ Supports PCIe 4.0 x8 (For Ryzen „¢ 8700/ 8600/ 8400 Series processors)
€¢ Supports PCIe 4.0 x4 (For Ryzen „¢ 8500/ 8300 Series processor)

Audio

Realtek ^® ALC897
7.1-Channel High Definition Audio

Storage

2x M.2
M.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 22110/2280/2260 devices
4x SATA 6G

M2_2 slot
€¢ Supports up to PCIe 4.0 x4 (For Ryzen „¢ 9000/ 7000 Series processors)
€¢ Supports up to PCIe 3.0 x4 (For Ryzen „¢ 8700/ 8600/ 8400 Series processors)
€¢ Supports up to PCIe 3.0 x2 (For Ryzen „¢ 8500/ 8300 Series processor)

*Please refer to the manual for M.2 SSD heatsink restrictions.

RAID

Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
Supports RAID 0, RAID 1 for M.2 NVMe storage devices

USB

4x USB 2.0 (Rear)
4x USB 2.0 (Front)
2x USB 5Gbps Type A (Rear)
2x USB 5Gbps Type A (Front)
1x USB 5Gbps Type C (Front)
1x USB 10Gbps Type A (Rear)
1x USB 10Gbps Type C (Rear)

LAN

Realtek ^® 8125BG 2.5G LAN

Internal IO

1x Power Connector(ATX_PWR)
1x Power Connector(CPU_PWR)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
4x System Fan
1x EZ Conn-header (JAF_1)
2x Front Panel (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
1x Com Port (JCOM)
1x Tuning Controller connector(JDASH)
2x Addressable V2 RGB LED connector (JARGB_V2)
1x RGB LED connector(JRGB)
1x TPM pin header(Support TPM 2.0)
4x USB 2.0 ports
2x USB 5Gbps Type A ports
1x USB 5Gbps Type C ports

Wireless LAN & Bluetooth

Wi-Fi 7 Solution
The Wireless module is pre-installed in the M.2 (Key-E) slot
Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (320MHz) up to 5.8Gbps
Supports 802.11 a/ b/ g/ n/ ac/ ax/ be

Supports Bluetooth ^® 5.4**, MLO, 4KQAM

* 6GHz band support may depend on every country €™s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2.
** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor €™s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.

LED Feature

4x EZ Debug LED

Back Panel Ports

Clear CMOS Button

USB 10Gbps (Type-A)

USB 2.0

2.5G LAN

Wi-Fi / Bluetooth

Audio connectors

Flash BIOS Button

HDMI „¢ 2.1 Port

USB 10Gbps (Type-C)

USB 5Gbps (Type-A)

Operating System

Support for Windows ^® 11 64-bit

Box Content

B840 GAMING PLUS WIFI Motherboard

Quick Installation Guide

European Union Regulatory Notice

EZ Wi-Fi Antenna

1 to 2 EZ Conn-Cable (V1)

SATA Cable

EZ M.2 Clip II

EZ M.2 Clip II Remover

PCB Info

ATX
243.84mmx304.8mm