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ATX motherboard with large VRM heatsink and pre-installed I/O shield, paired with Ryzen 9 9900X CPU

ASUS

ASUS PRIME X870-P & Ryzen 9 9900X AMD motherboard CPU combo with SATA 6Gbps ports

SKU CH-RYN2-K7X9H

Combines a 12-core 5.6 GHz Ryzen 9 9900X with an X870 board offering DDR5, four M.2 slots, 2.5 Gb Ethernet and SATA 6Gbps ports

  • CPU Socket TypeAM5

model PRIME X870-P

+CPU + Ryzen 9 9900X

  • 12 cores and 24 threads deliver heavy multi-task throughput
  • 6 GHz max boost clock enables fast single-thread response
  • 14+2+1 80 A DrMOS stages with large VRM heatsink sustain stable power delivery
  • Four M.2 slots plus SATA 6Gbps ports provide flexible storage expansion
  • Realtek 2.5 Gb Ethernet and USB 40 Gbps ports give high-speed wired connectivity

AM5 platform combo

This bundle pairs an ASUS PRIME X870-P motherboard with an AMD Ryzen 9 9900X processor for the AM5 socket. The 12-core CPU reaches a 5.6 GHz maximum boost clock and provides 24 threads for multithreaded workloads. It is built on the Zen 5 architecture with 64 MB of L3 cache and supports DDR5-5600 memory. No cooler is included with the processor.

VRM cooling and DIY layout

The board uses a 14+2+1 phase DrMOS design rated at 80 A per phase, backed by a large VRM heatsink for sustained loads. Multiple high-efficiency heatsinks cover key areas and hybrid fan headers are managed through ASUS Fan Xpert 4 software. A pre-installed I/O backplate, BIOS FlashBack button and SafeSlot reinforced PCIe slots simplify assembly and future updates.

Connectivity and storage options

Four M.2 sockets and SATA 6Gbps ports give flexibility for SSDs and hard drives. The rear I/O includes Realtek 2.5 Gb Ethernet and USB 40 Gbps ports for fast external devices. PCIe 5.0 support is available on select slots for graphics cards and storage. These interfaces cover current high-speed peripherals without requiring extra controllers.

Highlights

  • 12 cores and 24 threads deliver heavy multi-task throughput
  • 6 GHz max boost clock enables fast single-thread response
  • 14+2+1 80 A DrMOS stages with large VRM heatsink sustain stable power delivery
  • Four M.2 slots plus SATA 6Gbps ports provide flexible storage expansion
  • Realtek 2.5 Gb Ethernet and USB 40 Gbps ports give high-speed wired connectivity

Specifications

BrandASUS
ModelPRIME X870-P+R9 9900X
CPU Socket TypeAM5

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What PCIe standard does the PRIME X870-P motherboard support and what bandwidth does it cap at?

The motherboard supports PCIe 5.0, which caps at 5.0 GT/s per lane for graphics cards and M.2 storage devices.

What physical clearance does the large VRM cooler on the PRIME X870-P require for CPU cooler installation?

The large VRM cooler sits close to the AM5 socket, so low-profile air coolers or AIO water blocks with offset mounting are needed to avoid interference.

How is the Ryzen 9 9900X installed on the AM5 socket and which step is commonly missed?

Lift the retention lever, align the gold triangle on the CPU with the socket marker, place the chip gently, lower the lever, then apply thermal paste before mounting the cooler — skipping the paste causes overheating.

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