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ASUS PRIME B850M-K micro-ATX motherboard with AMD Ryzen 7 9800X3D CPU installed

ASUS

ASUS PRIME B850M-K & Ryzen 7 9800X3D Combo AMD motherboard

SKU CH-YG64-943WF

A motherboard and CPU bundle pairing an AM5 micro-ATX board with an 8-core 16-thread Ryzen 7 9800X3D processor featuring 96 MB L3 cache and a 5.2 GHz max boost, plus DDR5-8400 OC support.

  • CPU Socket TypeAM5
  • Ready-to-build motherboard and CPU combo
  • 8 cores and 16 threads for multitasking
  • 96 MB L3 cache accelerates gaming
  • DDR5 memory up to 8400 MT/s overclocked
  • PCIe 5.0 slot and 2.5 Gb Ethernet included

Combo B850M-K & Ryzen 7 9800X3D

This bundle pairs an ASUS PRIME B850M-K motherboard with an AMD Ryzen 7 9800X3D processor. The board uses the AM5 socket and a 6-layer PCB with an 8+2+1 power design. It targets builders who want a matched CPU and board without separate compatibility checks.

Who this suits and who it doesn’t

Gamers and creators gain 8 cores, 16 threads, and 96 MB L3 cache with 3D V-Cache technology. The board supports DDR5 up to 8400 MT/s overclocked and three M.2 slots. Users needing built-in Wi-Fi or more than one PCIe 5.0 slot should consider other options.

Deciding spec — PCIe 5.0 and 2.5 Gb Ethernet

The motherboard provides a PCIe 5.0 graphics slot and a Realtek 2.5 Gb wired network controller. Rear I/O includes a USB 10 Gbps Type-A port. These connectivity features determine whether the platform meets your peripheral and networking needs.

特長

  • Ready-to-build motherboard and CPU combo
  • 8 cores and 16 threads for multitasking
  • 96 MB L3 cache accelerates gaming
  • DDR5 memory up to 8400 MT/s overclocked
  • PCIe 5.0 slot and 2.5 Gb Ethernet included

仕様

BrandASUS
ModelPRIME B850M-K+R7 9800X3D
CPU Socket TypeAM5

この商品に関する質問

What case clearance and standoff pattern does the PRIME B850M-K motherboard require?

The micro-ATX board fits standard mATX standoffs and uses a 6-layer PCB design; ensure the case provides VRM heatsink clearance above the 8+2+1 power modules.

Which BIOS step is often missed when installing the Ryzen 7 9800X3D into the AM5 socket?

Update the UEFI BIOS before first boot so the 8-core 16-thread Zen 5 CPU with 96 MB L3 cache and 5.2 GHz max boost is recognised correctly.

What cooling upkeep does the 8+2+1 VRM and M.2 heatsink arrangement need over time?

Clean dust from the VRM heatsinks, thermal pads and M.2 heatsink periodically; verify the 4-pin PWM/DC fan headers still spin the attached fans for sustained DDR5 8400 MT/s operation.

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