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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
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardDDR5 4400
  • Maximum Memory Supported192GB
  • Channel SupportedDual Channel
  • ECC SupportedYes

model PRIME X870-P WIFI

+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.

Highlights

  • 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

Specifications

BrandASUS
ModelPRIME X870-P WIFI+R7 9850X3D
ChipsetAMD X870
Number of Memory Slots4x288pin (DDR5)
Memory StandardDDR5 4400
Maximum Memory Supported192GB
Channel SupportedDual Channel
ECC SupportedYes
Buffer SupportedUn-buffered
Memory FeatureSupports up to 8000+MT/s(OC) with Ryzen 9000 & 8000 & 7000 Series Processors
ECC and Non-ECC, Un-buffered DIMM*
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO)
ASUS Enhanced Memory Profile (AEMP)
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
PCI Express 5.0 x16AMD Ryzen 9000 & 7000 Series Desktop Processors
1 x PCIe 5.0 x16 slot (supports x16 mode)
PCI Express 4.0 x16AMD Ryzen 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)
AMD X870 Chipset
3 x PCIe 4.0 x16 slots (support x1 mode)***
*** PCIEX16(G4)_1 shares bandwidth with M.2_2. PCIEX16(G4)_1 will be disabled when M.2_2 runs.
*** PCIEX16(G4)_2 and PCIEX16(G4)_3 share bandwidth with M.2_3. PCIEX16(G4)_2 and PCIEX16(G4)_3 will be disabled when M.2_3 runs.
Serial ATA (SATA)2 x SATA 6Gb/s
M.2AMD Ryzen 9000 & 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode)
AMD Ryzen 8000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
AMD X870 Chipset
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode)**
M.2_3 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)***
M.2_4 slot (Key M), type 2280 (supports PCIe 3.0 x2 mode)****
** PCIEX16(G4)_1 shares bandwidth with M.2_2. PCIEX16(G4)_1 will be disabled when M.2_2 runs.
*** PCIEX16(G4)_2 and PCIEX16(G4)_3 share bandwidth with M.2_3. PCIEX16(G4)_2 and
SATA RAID* 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 ChipsetRealtek 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.
Audio Channels7.1 Channels
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports2 x USB4 (40Gbps) ports (2 x USB Type-C)
1 x USB 10Gbps port (1 x Type-A)
3 x USB 5Gbps ports (3 x Type-A)
4 x USB 2.0 ports (4 x Type-A)
1 x HDMI port
1 x Wi-Fi module
1 x Realtek 2.5Gb Ethernet port
3 x Audio jacks
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
2 x USB 2.0 headers support 4 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 Gen2 headers
1 x Clear CMOS header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x S/PDIF Out header
1 x SPI TPM header (14-1 pin)
1 x 10-1 pin System Panel header
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
BIOS Feature256 Mb Flash ROM, UEFI AMI BIOS
Windows 11Supported
FeaturesASUS 5X PROTECTION III
- DIGI+ VRM (- Digital power design with DrMOS)
- 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 Core
- Q-Slot
ASUS Thermal Solution
- Flexible M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack button
- BIOS FlashBack LED
- ProCool
- Pre-mounted I/O shield
- SafeSlot
Aura Sync
- Addressable Gen2 headers
Package Contents1 x AMD Ryzen 7 9850X3D CPU
1 x Shin-Etsu X-23-7921-5 (1.8g)
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x ASUS WiFi Q-Antenna
1 x M.2 rubber package
2 x Screw packages for M.2 SSD
Documentation
1 x Quick start guide

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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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