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ASUS TX GAMING B860M WIFI mATX motherboard with Intel Ultra 9 285K CPU and Shin-Etsu thermal paste tube

ASUS

ASUS TX GAMING B860M WIFI & Intel Ultra 9 285K Combo Intel motherboard

SKU CH-C5FT-Z3T04

A B860 mATX motherboard paired with an Intel Core Ultra 9 285K processor and Shin-Etsu thermal grease, supporting DDR5 memory and Wi-Fi 6E connectivity

  • CPU Socket TypeLGA 1851

model TX GAMING B860M WIFI

+CPU +Ultra 9 285K

  • Ready-to-build bundle with CPU, motherboard and Shin-Etsu X-23-7868-2D thermal paste included
  • Intel Ultra 9 285K delivers 36 MB L3 cache plus 40 MB L2 cache for heavy workloads
  • TX GAMING B860M WIFI board runs DDR5 with AEMP 3.0 for stable memory overclocking
  • PCIe 5.0 x16 slot and M.2 PCIe 5.0 x4 slot at 128 Gbps enable fast GPU and storage
  • Wi-Fi 6E and 2.5 Gb Ethernet with TUF LANGuard give reliable wired and wireless networking

Combo Contents

This bundle pairs an ASUS TX GAMING B860M WIFI motherboard with an Intel Core Ultra 9 285K processor and a tube of Shin-Etsu X-23-7868-2D thermal grease. The board uses the Intel B860 chipset on an mATX form factor with an LGA 1851 socket. The CPU is a 125W Arrow Lake part built on a 3nm process with 36MB L3 and 40MB L2 cache. Integrated Intel Graphics are included on the processor die.

Platform Limits

The motherboard supports dual-channel DDR5 memory with ASUS Enhanced Memory Profile 3.0 for stable overclocking. Expansion includes a PCIe 5.0 x16 slot, one M.2 PCIe 5.0 x4 slot running at 128Gbps, and an additional M.2 PCIe 4.0 slot. Networking covers Wi-Fi 6E and Realtek 2.5Gb Ethernet protected by TUF LANGuard. Aura Sync RGB lighting uses three addressable Gen2 headers.

Install Notes

The pre-mounted I/O shield and SafeSlot reinforced PCIe slot simplify board installation. The CPU drops into the LGA 1851 socket with no cooler in the box, so a separate solution is required. The supplied thermal grease has a 6.2 W/m.k conductivity, 0.07 °C·cm²/W resistance, 100 Pa.s viscosity and a suggested two-year replacement cycle. Application is rated easy, but uneven spread or excess paste can raise temperatures.

Highlights

  • Ready-to-build bundle with CPU, motherboard and Shin-Etsu X-23-7868-2D thermal paste included
  • Intel Ultra 9 285K delivers 36 MB L3 cache plus 40 MB L2 cache for heavy workloads
  • TX GAMING B860M WIFI board runs DDR5 with AEMP 3.0 for stable memory overclocking
  • PCIe 5.0 x16 slot and M.2 PCIe 5.0 x4 slot at 128 Gbps enable fast GPU and storage
  • Wi-Fi 6E and 2.5 Gb Ethernet with TUF LANGuard give reliable wired and wireless networking

Specifications

BrandASUS
ModelTX GAMING B860M WIFI+Ultra 9 285K
CPU Socket TypeLGA 1851

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Questions about this item

Should I pick the B860M WIFI board with the Ultra 9 285K or buy the CPU alone?

The combo includes the TX GAMING B860M WIFI motherboard, the Ultra 9 285K processor and Shin-Etsu X-23-7868-2D thermal grease, so you get a matched platform plus paste in one box.

What does the 125W figure mean for my build?

The Ultra 9 285K has a 125W base power rating, so your cooler and power supply must handle that sustained heat load under full CPU utilisation.

How fast is the PCIe 5.0 M.2 slot in practice?

The board provides a PCIe 5.0 x4 M.2 slot rated at 128Gbps, giving the highest throughput currently available for a single drive on this platform.

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