MSI B840M Gaming Plus WiFi 6E - AMD AM5 Micro ATX Gaming Motherboard

The B840M Gaming Plus WiFi 6E delivers comprehensive connectivity and performance for AMD Ryzen 9000, 8000, and 7000 series processors. This white micro ATX motherboard combines advanced features with user-friendly installation tools for reliable gaming performance.

Power Delivery and Memory Support

Built with a 7+2+1 phase direct CPU power design and 8-pin CPU power connector, the board features a 6-layer PCB with 2oz thickened copper for stable power delivery. Dual channel DDR5 memory support reaches 8000+ MT/s (OC) across four DIMM slots, accommodating up to 256GB. The board supports Non-ECC unbuffered memory, AMD POR Speed, JEDEC Speed, memory overclocking, AMD EXPO, and CUDIMM in clock driver bypass mode.

Thermal Management

The Frozr Guard thermal solution includes an extended heatsink design, MOSFET thermal pads rated for 7W/mK, additional choke thermal pads, and M.2 Shield Frozr II. Frozr AI Cooling automatically detects CPU and GPU temperatures, adjusting system fan duty for optimal thermal performance during extended gaming sessions.

Storage and Expansion

Two M.2 slots support PCIe 4.0 x4 (2280/2260 form factors) for NVMe SSDs, while four SATA III ports provide additional storage options with RAID 0, 1, and 10 support. The primary PCIe 4.0 x16 slot delivers up to 64GB/s bandwidth for graphics cards, complemented by a PCIe 3.0 x4 slot for expansion cards.

Connectivity Features

Pre-installed WiFi 6E module supports 2.4GHz/5GHz/6GHz bands up to 2.4Gbps with MU-MIMO TX/RX, 802.11 a/b/g/n/ac/ax, and Bluetooth 5.3. Onboard 2.5G LAN with LAN manager provides wired networking. USB connectivity includes 10Gbps Type-C ports (rear and front header), 10Gbps Type-A, multiple 5Gbps ports, and USB 2.0 options.

EZ DIY Installation

EZ M.2 Clip II enables tool-free M.2 SSD installation, while EZ PCIe Clip II allows single-finger graphics card removal. The EZ Antenna simplifies WiFi antenna setup. Audio Boost with Realtek ALC897 codec delivers 7.1-channel high definition audio.

AI-Enhanced Features

MSI Center integration provides AI Engine for application optimization, AI LAN Manager for network performance, and AI Boost for NPU overclocking on compatible processors. These features work alongside Core Boost and Memory Boost technologies for enhanced system performance.

Package Contents

Includes quick installation guide, EU regulatory notice, EZ WiFi antenna, SATA cables, EZ M.2 Clip II with removal tool, and EZ Conn-Cable. Backed by 3-year warranty.