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Black ATX motherboard with silver heatsinks and installed CPU cooler, ROG Strix branding visible

ASUS

ASUS ROG STRIX X870-A GAMING WIFI S +R7 9850X3D AMD motherboard

SKU CH-YZ7D-BNM9E

AM5 motherboard and Ryzen 7 9850X3D CPU combo with 16+2+2 90A power stages, two PCIe 5.0 and two PCIe 4.0 M.2 slots, WiFi 7 and AI overclocking tools

  • CPU Socket TypeAM5
  • ChipsetAMD X870

model ROG STRIX X870-A GAMING WIFI S

+CPU +R7 9850X3D

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  • Pre-built motherboard and CPU combo saves build time
  • 16+2+2 power stages rated 90A each for stable multi-core loads
  • AI Overclocking, Cooling II, Networking and AEMP simplify tuning
  • Two PCIe 5.0 plus two PCIe 4.0 M.2 slots with heatsinks
  • Ryzen 7 9850X3D 8-core 16-thread up to 5.6 GHz with 96MB L3 cache

ROG STRIX X870-A Combo

The bundle pairs an AMD X870 motherboard with a Ryzen 7 9850X3D processor for high-end gaming and AI workloads. The CPU delivers 8 cores, 16 threads and 96MB of L3 cache built on the Zen 5 architecture with a 5.6 GHz max boost clock. The board provides an AM5 socket ready for 7000, 8000 and 9000 series chips.

Installation and pitfalls

The AM5 socket uses a land-grid array so the CPU drops in without pins to bend, but the lever requires firm, even pressure to seat correctly. The 16+2+2 power design with dual ProCool II connectors needs both 8-pin cables attached for full 90A per stage delivery. Four M.2 slots share bandwidth, so populating all four may reduce the top PCIe 5.0 x4 slot to x8.

Capacity and headroom

Two PCIe 5.0 M.2 slots and two PCIe 4.0 slots all include substantial heatsinks for sustained throughput. DDR5 AEMP support simplifies memory tuning while AI Overclocking, AI Cooling II and AI Networking automate system optimisation. The 96MB cache and 5.6 GHz boost give strong gaming headroom, though all-core workloads will hit thermal limits before the power stages saturate.

商品特色

  • Pre-built motherboard and CPU combo saves build time
  • 16+2+2 power stages rated 90A each for stable multi-core loads
  • AI Overclocking, Cooling II, Networking and AEMP simplify tuning
  • Two PCIe 5.0 plus two PCIe 4.0 M.2 slots with heatsinks
  • Ryzen 7 9850X3D 8-core 16-thread up to 5.6 GHz with 96MB L3 cache

商品規格

BrandASUS
SeriesROG STRIX
ModelROG STRIX X870-A GAMING WIFI S +R7 9850X3D
CPU Socket TypeAM5
ChipsetAMD X870

其他版本

同系列還有 5 款

同系列產品，記憶體、散熱器或時脈不同 — 下單前請先比較。

商品問答

Will the included Ryzen 7 9850X3D processor fit the AM5 socket on this board?

Yes, the CPU is built for the AM5 socket and the motherboard uses the AMD X870 chipset, so they are a matched pair.

Can I run four M.2 drives at once and what speeds do the slots support?

The board provides four M.2 slots — two wired for PCIe 5.0 and two for PCIe 4.0 — each with its own heatsink, so all four can be populated simultaneously.

What memory standard does the platform use and is there an easy way to optimise it?

The platform runs DDR5 and the board includes AEMP, which automatically tunes supported memory kits for higher speeds without manual adjustment.

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