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ASUS TUF Gaming B860-PLUS WIFI ATX motherboard with Intel Ultra 9 285K CPU and thermal grease tube

ASUS

ASUS TUF GAMING B860-PLUS WIFI Intel Ultra 9 285K Combo

SKU CH-T04Q-XCQHX

ATX LGA 1851 motherboard paired with Intel Core Ultra 9 285K processor, DDR5 memory support up to 8666 MT/s, PCIe 5.0 M.2 slot, Wi-Fi 7 and 2.5 Gb Ethernet included

  • CPU Socket TypeLGA 1851
  • ChipsetIntel B860
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardUp to 8666+MT/s (OC)
  • Maximum Memory Supported192GB
  • Channel SupportedDual Channel

model TUF GAMING B860-PLUS WIFI

+CPU +Ultra 9 285K

  • Ready for Intel Core Ultra Series 2 processors with LGA 1851 socket
  • 12+2+1 80A DrMOS power stages deliver stable power to the CPU
  • DDR5 memory support up to 8666 MT/s over four slots for 192 GB capacity
  • One PCIe 5.0 and two PCIe 4.0 M.2 slots, each with a heatsink
  • Wi-Fi 7 and 2.5 Gb Ethernet plus Bluetooth 5.4 for fast networking

Combo for Intel Core Ultra 9 285K

This bundle pairs the ASUS TUF GAMING B860-PLUS WIFI motherboard with the Intel Core Ultra 9 285K processor and Shin-Etsu X-23-7868-2D thermal grease. It targets builders who want a ready-to-go platform for advanced AI workloads and high-performance computing. The LGA 1851 socket and B860 chipset deliver a modern foundation for the 125W Arrow Lake CPU.

Installation notes and common issues

The board includes DIY-friendly features such as PCIe Slot Q-Release, M.2 Q-Latch, Q-Antenna and a pre-mounted I/O shield to simplify assembly. BIOS FlashBack allows firmware updates without a CPU installed. Builders must supply their own cooler because the processor ships without one; applying the included thermal grease correctly is essential for the 125W part.

Platform limits and interface constraints

The motherboard provides one PCIe 5.0 x16 slot from the CPU and one PCIe 4.0 x16 slot from the chipset that operates at x4 mode. Bandwidth is shared between the chipset x16 and x1 slots, so the x16 drops to x2 when the x1 is populated. Memory tops out at 192 GB of DDR5 across four slots with support up to 8666 MT/s overclocked. Networking uses Wi-Fi 7 and 2.5 Gb Ethernet.

Points forts

  • Ready for Intel Core Ultra Series 2 processors with LGA 1851 socket
  • 12+2+1 80A DrMOS power stages deliver stable power to the CPU
  • DDR5 memory support up to 8666 MT/s over four slots for 192 GB capacity
  • One PCIe 5.0 and two PCIe 4.0 M.2 slots, each with a heatsink
  • Wi-Fi 7 and 2.5 Gb Ethernet plus Bluetooth 5.4 for fast networking

Caractéristiques

BrandASUS
ModelTUF GAMING B860-PLUS WIFI+Ultra 9 285K
Part NumberTUF GAMING B860-PLUS WIFI+Ultra 9 285K
CPU Socket TypeLGA 1851
ChipsetIntel B860
Number of Memory Slots4x288pin (DDR5)
Memory StandardUp to 8666+MT/s (OC)
Maximum Memory Supported192GB
Channel SupportedDual Channel
Memory FeatureSupport up to 8666+ MT/s (OC), Non-ECC, Un-buffered ,Clocked Unbuffered DIMM (CUDIMM)
Dual channel memory architecture
Supports Intel Extreme Memory Profile (XMP) memory module
ASUS Enhanced Memory Profile III(AEMPIII)
**Non-ECC, un-buffered DDR5 memory supports On-Die ECC function
PCI Express 5.0 x16Intel Core Ultra Processors (Series 2)
1 x PCIe 5.0 x16 slot
PCI Express 4.0 x16Intel B860 Chipset
1 x PCIe 4.0 x16 slot (supports x4 mode)*
PCI Express x11 x PCIe 4.0 x1 slot*
* PCIEX16(G4) shares bandwidth with PCIEX1(G4). When PCIEX1(G4) runs at PCIe x1 mode, PCIEX16(G4) will only run at PCIe x2 mode.
Serial ATA (SATA)4 x SATA 6Gb/s
M.2Intel Core Ultra Processors(Series 2)*
M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode)
Intel B860 Chipset
M.2_2 slot (Key M), type 2280/22110 (supports PCIe 4.0 x4 mode)
M.2_3 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)
SATA RAID* Intel Rapid Storage Technology supports, SATA RAID 0/1/5/10.
Audio ChannelsRealtek 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- Rear optical S/PDIF out port
- Premium audio capacitors
- Dedicated audio PCB layers
- Audio cover
* Due to limitations in HDA bandwidth, 32-Bit/192 kHz is not supported for 7.1 Surround Sound audio.
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports1 x USB 20Gbps port (1 x USB Type-C with DP Alt mode)
2 x USB 10Gbps ports (2 x USB Type-A)
3 x USB 5Gbps ports (3 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
1 x DisplayPort
1 x HDMI port
1 x Wi-Fi module
1 x Realtek 2.5Gb Ethernet port
5 x Audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack button
Onboard USB1 x USB 10Gbps connector (supports USB Type-C)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
1 x USB 2.0 header supports 2 additional USB 2.0 ports
Other ConnectorsFan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
4 x 4-pin Chassis Fan headers
Miscellaneous
3 x Addressable Gen 2 headers
1 x Clear CMOS header
1 x Chassis Intrusion header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x 10-1 pin Front System Panel header
1 x Thunderbolt (USB4) header
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS
SoftwareASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 4
- Power Saving
ASUS DriverHub
ASUS GlideX
TUF GAMING CPU-Z
Adobe Creative Cloud (Free Trial)
DTS Audio Processing
Norton 360 for Gamers (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
Windows 11Windows 11 (22H2 & later)
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24-pin Main Power connector
2 x 8-pin +12V CPU Power connectors
FeaturesASUS TUF PROTECTION
- DIGI+ VRM (- Digital power design with DrMOS)
- ESD Guards
- TUF LANGuard
- Overvoltage protection
- SafeSlot
- Stainless-steel back I/O
ASUS Q-Design
- M.2 Q-Latch
- PCIe Slot Q-Release
- Q-Antenna
- Q-Dashboard
- Q-DIMM
- Q-LED (CPU [red], DRAM [yellow], VGA [white], Boot Device [yellow green])
- Q-Slot
ASUS Thermal Solution
- M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
- CPU Socket lever protector
- ProCool
- Pre-mounted I/O shield
- SafeDIMM
Aura Sync
- Addressable Gen 2 headers
Package Contents1 x Intel Ultra 9 285K CPU
1 x Thermal grease: Shin-Etsu X-23-7868-2D
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
2 x M.2 rubber packages
1 x Screw package for M.2 SSD
1 x TUF GAMING sticker
Documentation
1 x Quick start guide

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Questions sur cet article

How can I confirm the Intel Ultra 9 285K is running at its 125W base power after assembly?

Enter the BIOS and check the CPU package power reading under hardware monitor; it should idle well below 125W and rise toward 125W under an all-core load such as Cinebench.

The combo lists motherboard, CPU and Shin-Etsu X-23-7868-2D thermal grease — what else must I buy to finish the build?

You still need DDR5 memory modules, a graphics card, storage drives, a power supply with dual 8-pin CPU connectors, a CPU cooler and a chassis.

The board has three M.2 slots — which one should I use for the fastest OS drive?

Use the M.2_1 slot; it is wired to the CPU and supports PCIe 5.0 x4, while M.2_2 and M.2_3 run at PCIe 4.0 x4 from the chipset.

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