Overview

The ASUS ROG CROSSHAIR X870E HERO is a flagship AM5 motherboard designed for AMD Ryzen 9000 series processors. Built on the X870E chipset, it offers PCIe 5.0 support, robust power delivery, and extensive connectivity. It's the ideal foundation for a high-end gaming or workstation PC.

Key Features

  • 18+2+2 phase VRM with 110A power stages for extreme overclocking
  • Two PCIe 5.0 x16 slots (SafeSlot) for multi-GPU or future upgrades
  • Five M.2 slots: two PCIe 5.0 and three PCIe 4.0
  • Dual LAN (2.5GbE + 5GbE) and built-in Wi-Fi 7
  • Dual USB4 Type-C ports (40Gbps) on the rear I/O

Compatibility Guide

  • CPU Socket: AM5 (Ryzen 7000/8000/9000 series)
  • Memory: DDR5, up to 192GB, EXPO support
  • Form Factor: ATX (305×244mm)
  • PCIe: PCIe 5.0 x16 (CPU direct), PCIe 4.0 x16 (chipset)
  • Storage: M.2 PCIe 5.0×2, M.2 PCIe 4.0×3, SATA 6Gbps×4
  • Power Connectors: 24-pin ATX, 2×8-pin EPS12V
  • Recommended PSU: 850W or higher for Ryzen 9 + high-end GPU

Ideal Builds

  • Top-tier gaming PC with Ryzen 9 9950X or 9950X3D
  • Multi-GPU setups (two GPUs at PCIe 5.0 x8/x8)
  • Workstations requiring multiple fast NVMe drives
  • Custom water-cooling loops (multiple fan/pump headers)

Upgrade Considerations

  • AM5 socket allows CPU upgrades within Ryzen 9000 series with a BIOS update. Note that Ryzen 8000G APUs have fewer PCIe lanes.
  • Use CPU-direct PCIe 5.0 slots for GPU and primary SSD to avoid chipset bandwidth limits.
  • Check case clearance for large CPU coolers (air or AIO).
  • For memory, use two sticks of EXPO DDR5-6000 or higher for best stability; four sticks may reduce performance.