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Black rectangular micro-ATX motherboard with silver heatsinks and dual 8-pin CPU power connectors

MSI

MSI MAG B850M GAMING PLUS MAX WIFI AMD motherboard

SKU CH-6EX4-5BE4B

AM5 mATX board with 10+2+1 power phases, DDR5 8200 OC support, PCIe 5.0, 5G LAN and Wi-Fi 7

  • CPU Socket TypeAM5
  • ChipsetAMD B850
  • Supports Ryzen 9000, 8000 and 7000 series processors for broad CPU compatibility
  • DDR5 memory runs at 8200 MT/s overclocked for high-speed dual-channel performance
  • 10+2+1 phase power delivery with dual 8-pin connectors ensures stable current to the CPU
  • PCIe 5.0 slots and Lightning Gen 5 M.2 deliver fast GPU and storage bandwidth
  • 5G LAN and Wi-Fi 7 provide high-throughput wired and wireless networking

AM5 mATX board for Ryzen 9000/8000/7000

The MSI MAG B850M GAMING PLUS MAX WIFI is a micro-ATX motherboard built around the AMD B850 chipset and the AM5 socket. It supports AMD Ryzen 9000, 8000 and 7000 series desktop processors. Dual-channel DDR5 memory can run at 8200+ MT/s when overclocked, and the 10+2+1-phase power delivery uses dual 8-pin CPU connectors on a 6-layer server-grade PCB with 2oz copper.

Builders needing compact DDR5 platforms

This board suits builders who want a compact mATX platform with modern connectivity. It provides 5G Ethernet and Wi-Fi 7 for high-speed networking, plus PCIe 5.0 slots and a Lightning Gen 5 x4 M.2 socket for fast storage and graphics. EZ DIY features include 2nd-generation tool-free M.2 quick-release, expandable PCIe latches and plug-and-play Wi-Fi antennas. Systems that require a larger ATX layout or a different chipset feature set will need another model.

B850 chipset with PCIe 5.0 and Lightning Gen 5 M.2

The AMD B850 chipset is the single specification that defines the platform capabilities of this board. It enables PCIe 5.0 support for both the primary expansion slot and the Lightning Gen 5 x4 M.2 connector, delivering high bandwidth for current graphics cards and solid-state drives. This chipset choice also determines the rear I/O layout, including 5G LAN and Wi-Fi 7, and the overall feature set available to the builder.

特長

  • Supports Ryzen 9000, 8000 and 7000 series processors for broad CPU compatibility
  • DDR5 memory runs at 8200 MT/s overclocked for high-speed dual-channel performance
  • 10+2+1 phase power delivery with dual 8-pin connectors ensures stable current to the CPU
  • PCIe 5.0 slots and Lightning Gen 5 M.2 deliver fast GPU and storage bandwidth
  • 5G LAN and Wi-Fi 7 provide high-throughput wired and wireless networking

仕様

BrandMSI
ModelMAG B850M GAMING PLUS MAX WIFI
CPU Socket TypeAM5
ChipsetAMD B850

この商品に関する質問

Do I need an AM5-socket Ryzen 7000, 8000 or 9000 series processor for this B850 board to post?

Yes, the board only accepts AM5 CPUs from the Ryzen 7000, 8000 and 9000 families; an older AM4 chip will not fit.

Will my PCIe 4.0 graphics card and Gen 4 M.2 SSD run at full speed in the PCIe 5.0 slots?

They will work but operate at PCIe 4.0 speeds because the 5.0 slots are backward compatible and negotiate the highest common generation.

How can I confirm the DDR5 memory is actually running at 8200 MT/s after I enable the overclock profile?

Open the BIOS or a hardware-monitoring utility and verify the reported memory frequency shows 8200 MT/s or higher.

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