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ATX motherboard with large silver VRM heatsink, four DDR5 slots, dual M.2 heatsinks, rear I/O shield, Ryzen 9 9900X CPU in socket

ASUS

ASUS PRIME X870-P WIFI + Ryzen 9 9900X AMD motherboard & CPU combo

SKU CH-50CJ-D45P4

Pairs an AMD X870 motherboard with a 12-core Ryzen 9 9900X, DDR5 to 192 GB, Wi-Fi 7, 2.5 Gb LAN and PCIe 5.0 slots

  • 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 9900X

  • 12 cores and 24 threads handle heavy workloads with the 5.6 GHz max boost
  • 14+2+1 80A DrMOS power stages on an 8-layer PCB deliver stable voltage for overclocking
  • DDR5 memory scales to 8000+ MT/s across four slots with a 192 GB ceiling
  • Wi-Fi 7 and 2.5 Gb Ethernet plus USB4 40 Gbps ports keep data moving fast
  • Q-Release PCIe slot, M.2 Q-Latch and pre-mounted I/O shield simplify the build

Combo ready for AI workloads

This bundle pairs an ASUS PRIME X870-P WIFI motherboard with a Ryzen 9 9900X processor. The CPU delivers 12 cores and 24 threads built on the Zen 5 architecture, reaching a 5.6 GHz max boost clock. It targets enthusiasts building advanced AI PCs or high-end workstations on the AM5 platform. The combination unlocks PCIe 5.0 support for both graphics and storage.

Power delivery and DIY layout

The board uses 14+2+1 80A DrMOS power stages on an 8-layer PCB with ProCool connectors, alloy chokes and durable capacitors. A large VRM heatsink, dual M.2 heatsinks and a PCH heatsink handle thermals. Pre-mounted I/O shield, Q-Antenna, PCIe Slot Q-Release and M.2 Q-Latch simplify assembly. BIOS FlashBack, Q-Dashboard and Q-LED Core aid troubleshooting.

Connectivity bundle and software control

Wi-Fi 7, Bluetooth 5.4 and 2.5Gb Ethernet provide modern wireless and wired links. Rear USB4 40Gbps Type-C, front USB 10Gbps Type-C and rear USB 10Gbps Type-A ports cover high-speed peripherals. Fan Xpert 4 with AI Cooling II manages hybrid fan headers. Realtek 7.1 audio with shielding supports 24-bit/192 kHz playback.

Points forts

  • 12 cores and 24 threads handle heavy workloads with the 5.6 GHz max boost
  • 14+2+1 80A DrMOS power stages on an 8-layer PCB deliver stable voltage for overclocking
  • DDR5 memory scales to 8000+ MT/s across four slots with a 192 GB ceiling
  • Wi-Fi 7 and 2.5 Gb Ethernet plus USB4 40 Gbps ports keep data moving fast
  • Q-Release PCIe slot, M.2 Q-Latch and pre-mounted I/O shield simplify the build

Caractéristiques

BrandASUS
ModelPRIME X870-P WIFI+R9 9900X
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 9900X 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

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Questions sur cet article

What PCIe 5.0 x16 speed does the board deliver with the included Ryzen 9 9900X?

The board provides one PCIe 5.0 x16 slot running at full x16 bandwidth when paired with the Ryzen 9 9900X processor.

What physical clearance is needed for the VRM and M.2 heatsinks on this ATX board?

The board includes a large VRM heatsink and dual M.2 heatsinks, so the case must accommodate standard ATX height and allow airflow over those heatsinks.

How is the Ryzen 9 9900X installed in the AM5 socket, and what step is often missed?

Lift the socket lever, align the CPU triangle with the socket marker, place the chip gently, lower the lever, then remove the protective plastic cover from the CPU heatspreader before mounting the cooler.

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