Placa-mãe Sapphire NITRO+ B850M WIFI — AMD B850, socket AM5, micro ATX, DDR5, 4x DIMM, Wi-Fi 6, LAN 2,5Gb, 2x M.2

The SAPPHIRE micro ATX B850 motherboard supports AMD AM5 socket CPUs, including AMD Ryzen 7000, 8000 and 9000 series. It is built for compact systems that require modern connectivity and memory performance, offering DDR5 support with up to 192 GB across four DIMM slots, PCIe 5.0 for graphics and M.2 storage, onboard 2.5 Gigabit Ethernet as well as Wi‑Fi 6 and Bluetooth 5.3 for wireless networking.

Advantages

This motherboard provides a robust power delivery system with a 12+2+1 phase VRM design and 55A per phase to support high-performance AM5 CPUs. Advanced cooling is included for the VRM, M.2 slots and PCH to maintain stability under load. Dual-channel DDR5 memory is supported with overclocking up to 8000 MHz, and PCI Express 5.0 x16 capability ensures compatibility with the latest GPUs. Integrated features such as Debug LED, Clear CMOS jumper and support for multiple storage interfaces increase serviceability and upgrade potential.

Key specifications

• CPU socket: AMD AM5 — supports AMD Ryzen 7000 / 8000 / 9000 series
• Form factor: micro ATX (mATX)
• Chipset: AMD B850
• Power design: 12+2+1 phase CPU power, 55A per phase
• Memory: DDR5, 4 DIMM slots, dual channel, maximum 192 GB, OC up to 8000 MHz
• PCIe: PCI Express 5.0 x16 slot
• Storage: PCIe 5.0 and 4.0 M.2 support, SATA III, up to 6 storage drives supported
• Audio: Realtek ALC897, 5.1 channels
• Networking: 2.5 Gigabit Ethernet; Wi‑Fi 6 (802.11ax); Bluetooth 5.3
• Extras: Debug LED, Clear CMOS jumper

How to use

Install the motherboard into a compatible micro ATX case and mount an AMD AM5 CPU according to the CPU installation instructions. Populate DDR5 memory modules into matching DIMM slots for dual‑channel operation, and connect storage devices to the M.2 slots or SATA III ports as required. Attach power connectors from the PSU to the CPU and main power headers, connect front-panel headers and peripherals, then perform initial BIOS setup using the SAPPHIRE Core BIOS. Use the Debug LED and Clear CMOS jumper for troubleshooting and BIOS recovery if needed.

Recommendations

For optimal system stability, pair the motherboard with a quality power supply rated for your CPU and GPU power draw, install an adequate case airflow solution to cool the VRM and M.2 areas, and use validated DDR5 memory kits for the AM5 platform.