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ASUS PRIME X870-P WIFI ATX motherboard with Ryzen 9 9950X CPU, silver heatsinks and black PCB

ASUS

ASUS PRIME X870-P WIFI & Ryzen 9 9950X Combo AMD motherboard

SKU CH-H77V-MBR8Q

A motherboard and CPU combo with a 16-core Ryzen 9 9950X, DDR5 support to 192 GB, PCIe 5.0 x16 and M.2, Wi-Fi 7, Bluetooth 5.4 and 2.5 Gb LAN

  • ChipsetAMD X870
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardDDR5 4400
  • Maximum Memory Supported192GB
  • Channel SupportedDual Channel
  • ECC SupportedYes

Motherboard PRIME X870-P WIFI

CPU + R9 9950X

  • Stable power for heavy workloads with 14+2+1 80A DrMOS stages
  • 16 cores and 32 threads on Zen 5 architecture reach 5.7 GHz max boost
  • Four DDR5 slots support up to 192 GB at 4400 MT/s standard
  • Wi-Fi 7 and 2.5 Gbps LAN plus Bluetooth 5.4 for fast wireless connectivity
  • PCIe 5.0 x16 slot and PCIe 5.0 M.2 2280 enable high-speed graphics and storage

ASUS PRIME X870-P WIFI & Ryzen 9 9950X Combo

This combo pairs an AMD X870 chipset motherboard with a 16-core Ryzen 9 9950X processor. It targets builders who need high multi-threaded throughput for rendering, compilation or AI workloads. The board delivers 14+2+1 80A DrMOS power stages on an 8-layer PCB for stable delivery. Four DDR5 slots support up to 192 GB in dual-channel mode.

PCIe 5.0 x16 and M.2 limits

The primary PCIe 5.0 x16 slot runs at x16 with Ryzen 9000 or 7000 series CPUs. With Ryzen 8000 series it operates at PCIe 4.0 x8 or x4. The top M.2_1 slot supports PCIe 5.0 x4 on 9000 and 7000 series, dropping to PCIe 4.0 x4 on 8000 series. M.2_2 shares bandwidth with the second PCIe x16 slot, disabling that slot when populated.

DIY-friendly installation notes

Pre-mounted I/O shield, Q-Release for the graphics card and M.2 Q-Latch remove screwdrivers from the process. BIOS FlashBack updates firmware without a CPU installed. Q-LED Core shows POST codes for quick troubleshooting. The large VRM and dual M.2 heatsinks need adequate case airflow. Cooler mounting follows standard AM5 patterns; no cooler is included.

Highlights

  • Stable power for heavy workloads with 14+2+1 80A DrMOS stages
  • 16 cores and 32 threads on Zen 5 architecture reach 5.7 GHz max boost
  • Four DDR5 slots support up to 192 GB at 4400 MT/s standard
  • Wi-Fi 7 and 2.5 Gbps LAN plus Bluetooth 5.4 for fast wireless connectivity
  • PCIe 5.0 x16 slot and PCIe 5.0 M.2 2280 enable high-speed graphics and storage

Specifications

BrandASUS
ModelPRIME X870-P WIFI+R9 9950X
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 9 9950X CPU
1 x Shin-Etsu X-23-7868-2D (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

Other versions of this model

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Questions about this item

Should I pick the combo with the Ryzen 9 9950X or look for a different CPU?

This bundle pairs the PRIME X870-P WIFI motherboard with the Ryzen 9 9950X, a 16-core, 32-thread processor that reaches 5.7 GHz max boost and includes 64 MB L3 cache. The board delivers 14+2+1 80A DrMOS power stages and an 8-layer PCB, built to handle that density. No other CPU variant is offered in this listing.

What does the 5.7 GHz boost clock mean once the chip is installed?

The 5.7 GHz figure is the maximum single-core boost frequency the Ryzen 9 9950X can hit under light loads when thermal and power headroom allow. All-core speeds under heavy workloads will be lower and depend on your cooler and case airflow. The processor is unlocked for overclocking if you want to push further.

Which PCIe standard does the primary x16 slot and the top M.2 slot use, and what does that limit?

With the Ryzen 9 9950X installed, the primary PCIe x16 slot and the M.2_1 slot both run at PCIe 5.0, giving a graphics card up to x16 bandwidth and a 2280 SSD up to x4 bandwidth. If a Ryzen 8000 series processor were used instead, those same slots would drop to PCIe 4.0 speeds.

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