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ASUS PRIME Z890M-PLUS WIFI micro-ATX motherboard with Intel Core Ultra 9 285K CPU installed

ASUS

ASUS PRIME Z890M-PLUS WIFI Intel motherboard & Core Ultra 9 285K CPU combo

SKU CH-679E-3KGMQ

Micro-ATX Z890 board with Core Ultra 9 285K, 10+1+2+1 80A power stages, DDR5 up to 8666 MT/s, PCIe 5.0 M.2, Wi-Fi 7 and 2.5 Gb LAN

  • CPU socketLGA 1851
  • ChipsetIntel Z890
  • Form factorMicro ATX
  • Memory slot count4 × 288pin (DDR5)
  • Max supported RAM256 GB
  • Memory channelsDual Channel

Model PRIME Z890M-PLUS WIFI

CPU +Ultra 9 285K

  • Ready for advanced AI workloads with Intel Core Ultra 9 285K processor
  • Stable power delivery via 10+1+2+1 80A DrMOS stages and ProCool connectors
  • High-speed DDR5 memory support up to 8666 MT/s across four slots
  • Fast storage options with one PCIe 5.0 and two PCIe 4.0 M.2 slots
  • Comprehensive connectivity including Wi-Fi 7, 2.5Gb LAN, and USB 20Gbps Type-C

Z890 mATX Motherboard with Core Ultra 9 285K

This combo pairs an ASUS PRIME Z890M-PLUS WIFI motherboard with an Intel Core Ultra 9 285K processor. The board uses the LGA 1851 socket and Intel Z890 chipset in a micro-ATX layout. The CPU delivers 36MB L3 cache and 40MB L2 cache with a 125W base power rating. Integrated Intel Graphics handles display output without a discrete card.

Builders wanting AI-ready connectivity

The 10+1+2+1 80A DrMOS power stages, 6-layer PCB and large VRM heatsinks suit sustained heavy workloads. AI Cooling II and AI Networking II automate fan curves and traffic prioritisation. One PCIe 5.0 M.2 slot and two PCIe 4.0 M.2 slots support fast storage. Users needing more than four DDR5 slots or a full-size ATX layout should consider other boards.

Sustained load behaviour with robust power delivery

The 80A power stages and alloy chokes maintain stable voltage during prolonged compute tasks. Large VRM and PCH heatsinks combined with hybrid fan headers managed by Fan Xpert 4 dissipate heat over long sessions. Dual-channel DDR5 support up to 8666 MT/s (OC) keeps memory bandwidth high. Wi-Fi 7 and 2.5Gb LAN maintain network throughput under continuous traffic.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $1,107.99
Pricier than about 93% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameASUS
Model namePRIME Z890M-PLUS WIFI+Ultra 9 285K
Processor
CPU socketLGA 1851
ChipsetIntel Z890
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM256 GB
Memory channelsDual Channel
Storage
SATA ports6 x SATA 6Gb/s
Audio & video
Sound channels7.1 Channels
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Ports & slots
PCIe 5.0 x16 slots1 x PCI Express 5.0 x16
PCIe 4.0 x16 slots3 x PCI Express 4.0 x16
Size & build
Form factorMicro ATX
Compatibility
Windows 11 supportSupported

Other versions of this model

5 more in the same range

Questions about this item

What DDR5 memory kit speed and capacity do I need to match the board's 8666+MT/s OC rating and 256GB maximum?

Install up to four DDR5 CUDIMM modules for a total of 256GB; the board supports dual-channel XMP and AEMP III profiles up to 8666+MT/s when overclocked.

Will my existing PCIe 4.0 graphics card and SATA SSDs work with the single PCIe 5.0 x16 slot and six SATA 6Gb/s ports?

The PCIe 5.0 x16 slot is backward compatible with PCIe 4.0 graphics cards, and all six SATA 6Gb/s ports accept standard SATA SSDs or hard drives.

How can I confirm the CPU is boosting to its 125W base power and the Wi-Fi 7 link is active after first boot?

Check the BIOS hardware monitor for a 125W package power reading and verify the OS network adapter shows an 802.11be connection.

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