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Compact mATX board, dark grey PCB with silver heatsinks and two antenna ports

Sapphire Tech

Sapphire Tech NITRO+ B850M WIFI AMD motherboard

SKU CH-GCDB-YCWG7

Micro-ATX AM5 board with B850 chipset, DDR5 to 8000 MT/s, PCIe 5.0 x16, 2.5 GbE, Wi-Fi 6 and Bluetooth 5

  • CPU Socket TypeAM5
  • ChipsetAMD B850
  • HDMI1 x HDMI
  • DisplayPort1 x DisplayPort
  • Supports AMD RALON 7000, 8000 and 9000 series processors on AM5 socket
  • Four DDR5 slots reach 8000 MT/s OC with EXPO and XMP profiles
  • PCIe 5.0 x16 slot plus PCIe 4.0 x4 slot for high-speed expansion
  • Realtek ALC897 audio delivers 5.1 channel Hi-Fi sound
  • Wi-Fi 6 with Bluetooth 5 and 2.5G wired LAN included

Socket AM5 B850 platform

This AMD B850 motherboard fits Socket AM5 and accepts AMD RALON 7000, 8000 and 9000 series desktop processors. It provides four DDR5 memory slots supporting speeds up to 8000 MT/s when overclocked and a maximum capacity of 192 GB.

Expansion and connectivity

Builders who need a single PCIe 5.0 x16 graphics slot and one PCIe 4.0 x4 add-in slot will find the layout adequate. The board also supplies 2.5 GbE wired networking, Wi-Fi 6 and Bluetooth 5, plus rear HDMI and DisplayPort outputs for processors with integrated graphics.

Memory ceiling

The 192 GB DDR5 limit across four slots is the specification that determines whether this board suits a planned build; systems requiring more memory must use a different platform.

Highlights

  • Supports AMD RALON 7000, 8000 and 9000 series processors on AM5 socket
  • Four DDR5 slots reach 8000 MT/s OC with EXPO and XMP profiles
  • PCIe 5.0 x16 slot plus PCIe 4.0 x4 slot for high-speed expansion
  • Realtek ALC897 audio delivers 5.1 channel Hi-Fi sound
  • Wi-Fi 6 with Bluetooth 5 and 2.5G wired LAN included

Specifications

BrandSAPPHIRE
ModelNITRO+ B850M WIFI
CPU Socket TypeAM5
ChipsetAMD B850
HDMI1 x HDMI
DisplayPort1 x DisplayPort

Questions about this item

What does the PCIe 5.0 x16 slot cap at for a graphics card?

The single PCIe 5.0 x16 slot runs at up to 5.0 speeds, so a compatible GPU will operate at its full 5.0 bandwidth when installed in that slot.

What mounting holes and clearance does the mATX board need in a case?

The board follows the standard mATX pattern with four mounting holes and requires a case that accepts mATX form factor and clears the rear I/O shield.

How do I install the Wi-Fi 6 antenna and what step is often missed?

Screw the two supplied antennas onto the gold antenna ports on the rear I/O panel; the step often missed is tightening both connectors firmly so the Wi-Fi 6 module gets full signal.

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