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ASUS PRIME X870-P WIFI ATX motherboard with Ryzen 7 9850X3D CPU, dark PCB, silver heatsinks, rear I/O panel visible

ASUS

ASUS PRIME X870-P WIFI + Ryzen 7 9850X3D combo AMD motherboard

SKU CH-BN58-D8192

Pre-built AM5 platform pairing an 8-core 16-thread Zen 5 CPU with 5.6 GHz boost and 3D V-Cache alongside a board offering 14+2+1 80A DrMOS stages, DDR5 to 192 GB, PCIe 5.0 graphics and M.2, Wi-Fi 7.

  • ChipsetAMD X870
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 4400
  • Max supported RAM192 GB
  • Memory channelsDual Channel

Model PRIME X870-P WIFI

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CPU + Ryzen 7 9850X3D

  • Stable power delivery with 14+2+1 80A DrMOS stages and 8-layer PCB
  • Fast wireless and wired networking via Wi-Fi 7 and 2.5Gb Ethernet
  • High-speed storage on PCIe 5.0 M.2 slot with Q-Latch tool-free install
  • 8-core 16-thread Ryzen 7 9850X3D up to 5.6 GHz with 3D V-Cache
  • 192 GB DDR5 capacity across 4 slots with EXPO overclocking support

Combo for AM5 builds

This bundle pairs an ASUS PRIME X870-P WIFI motherboard with an AMD Ryzen 7 9850X3D processor. The board uses the AMD X870 chipset and AM5 socket to support Ryzen 9000, 8000 and 7000 series CPUs. Four DDR5 slots accept up to 192 GB of memory at 4400 MT/s with EXPO profiles available. It is suited for gamers and creators who want a ready-to-run platform with modern connectivity.

Upgrading from older AM5 or AM4 systems

The combination brings PCIe 5.0 on the primary x16 slot and M.2_1 slot when a Ryzen 9000 or 7000 CPU is installed, while Ryzen 8000 series drops the GPU slot to PCIe 4.0 x8 or x4. The CPU delivers 8 cores and 16 threads on Zen 5 architecture with a 5.6 GHz maximum boost clock and second-generation 3D V-Cache for lower gaming latency. The jump is worthwhile when you need the extra cache benefit and faster storage or GPU bandwidth.

Straightforward installation with DIY aids

A pre-mounted I/O shield, PCIe Slot Q-Release, M.2 Q-Latch and Q-Antenna reduce the steps needed to fit the board and connect Wi-Fi 7. BIOS FlashBack lets you update firmware without a CPU installed, and Q-LED Core gives quick post-code feedback. The main caution is that PCIEX16(G4)_1 shares bandwidth with M.2_2, so populating both will disable the second x16 slot.

How it compares

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

Price $897.99
Pricier than about 83% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASUS
Model namePRIME X870-P WIFI+R7 9850 × 3D
Processor
ChipsetAMD X870
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 4400
Max supported RAM192 GB
Memory channelsDual Channel
ECC supportYes
BufferingUn-buffered
Storage
SATA ports2 x SATA 6Gb/s
SATA and RAID support* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/5/10 and SATA RAID 0/1. RAID 5 Function is only supportted by AMD Ryzen 9000 series CPU.
Audio & video
Audio chipRealtek 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
- Premium audio capacitors
- Dedicated audio PCB layers
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
Sound channels7.1 Channels
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsAMD Ryzen 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot (supports x16 mode)
Onboard USB headers1 x USB 10 Gbit/s connector (supports USB Type-C)
1 x USB 5 Gbit/s header supports 2 additional USB 5 Gbit/s ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Power
Power connectors1 × 24-pin Main Power connector
2 × 8-pin +12 V CPU Power connectors
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Compatibility
Windows 11 supportSupported
More details
BIOS256 Mb Flash ROM, UEFI AMI BIOS

Other versions of this model

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Questions about this item

What case clearance does the 14+2+1 80A DrMOS VRM heatsink need?

The board uses an ATX form factor with a large VRM heatsink and 8-layer PCB, so a standard ATX case with adequate CPU-cooler clearance will fit it.

How do I seat the Ryzen 7 9850X3D in the AM5 socket without bending pins?

Align the triangle on the CPU with the socket marker, lower it gently without force, then lock the retention arm; the AM5 socket is LGA so the pins are on the motherboard, not the processor.

When should I replace the M.2 heatsink thermal pads on the two 2280 slots?

Inspect the pads during any major rebuild; replace them if they look dried out or compressed, otherwise they typically last the life of the board.

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