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ASUS TUF B850M-PLUS mATX board with Ryzen 7 9700X CPU in AM5 socket

ASUS

ASUS TUF GAMING B850M-PLUS & Ryzen 7 9700X AMD motherboard combo

SKU CH-5YMF-PW5PH

Micro-ATX AM5 motherboard paired with an 8-core 16-thread Ryzen 7 9700X CPU, two DDR5 slots up to 256 GB, PCIe 5.0 x16 GPU slot, dual M.2 slots, 2.5 Gb LAN, WiFi 6E and 20 Gbps USB Type-C

  • CPU Socket TypeAM5

Motherboard TUF GAMING B850M-PLUS

Show 3 more configurations

CPU + Ryzen 7 9700X

  • 8 cores and 16 threads deliver 100+ FPS in top games
  • Max boost clock of 5.5 GHz with 40 MB cache for responsive performance
  • DDR5 support up to 256 GB with AEMP and EXPO for faster memory
  • PCIe 5.0 x16 SafeSlot plus dual M.2 slots for high-speed storage and graphics
  • Realtek 2.5Gb LAN with WiFi 6E and USB 3.2 Gen2x2 Type-C at 20Gbps

TUF Gaming B850M-PLUS with Ryzen 7 9700X

This motherboard and CPU combo pairs an AMD B850 micro-ATX board with an 8-core, 16-thread Ryzen 7 9700X processor. The board uses the AM5 socket and provides two DDR5 slots supporting up to 256 GB with AEMP and EXPO profiles. It targets gamers and builders who want a compact platform with current connectivity.

Thermals noise and power draw

The Ryzen 7 9700X has a maximum boost clock of 5.5 GHz and an unlocked multiplier for overclocking. The motherboard includes dedicated CPU, OPT and AIO pump headers alongside VRM heatsinks to manage heat under load. Realtek ALC1220P 7.1 HD audio with EMI shielding keeps the analogue section clean.

Upgrade path from older AM5 or AM4 builds

The combo delivers PCIe 5.0 x16 for the graphics card and dual M.2 slots running at PCIe 5.0 x4 and PCIe 4.0 x4. Rear I/O adds Realtek 2.5 Gb LAN, WiFi 6E and a USB 3.2 Gen 2x2 Type-C port at 20 Gbps. Q-Release GPU latch, M.2 Q-Latch and pre-mounted I/O shield simplify assembly.

Highlights

  • 8 cores and 16 threads deliver 100+ FPS in top games
  • Max boost clock of 5.5 GHz with 40 MB cache for responsive performance
  • DDR5 support up to 256 GB with AEMP and EXPO for faster memory
  • PCIe 5.0 x16 SafeSlot plus dual M.2 slots for high-speed storage and graphics
  • Realtek 2.5Gb LAN with WiFi 6E and USB 3.2 Gen2x2 Type-C at 20Gbps

Specifications

BrandASUS
ModelTUF GAMING B850M-PLUS+R7 9700X
CPU Socket TypeAM5

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I seat the Ryzen 7 9700X into the AM5 socket without bending pins?

Align the triangle marker on the CPU with the socket corner, lower it straight down without force, then flip the retention arm until it clicks; the pre-mounted I/O shield means one less piece to fit before the board goes in the case.

Which components on this board are most likely to need attention after a few years of heavy gaming?

The Realtek ALC1220P audio codec and 2.5Gb LAN controller are solid-state and rarely fail; the only serviceable items are the CMOS battery on the board and any case fans plugged into the CPU, OPT or AIO pump headers.

What thermal or power limit will the Ryzen 7 9700X hit first during an all-core workload?

With a 5.5 GHz max boost and 8 cores and 16 threads, the processor will reach its package power limit before the VRM heatsinks saturate, so sustained clocks settle at the level the cooling solution can dissipate.

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