This article covers ASUS Pro WS W790-ACE Intel LGA 4677 CEB マザーボード.

Overview

The ASUS Pro WS W790-ACE is a workstation motherboard built for Intel Xeon W-3400 and W-2400 series processors on the LGA 4677 socket. It's designed to handle the most demanding professional workloads, from 3D rendering and video production to AI training and scientific simulation. The board stands out with five PCIe 5.0 x16 slots, dual 10G and 2.5G LAN, and DDR5 R-DIMM memory support. In the ASUS Pro WS lineup, this board occupies a mid-to-high tier position. It balances server-grade reliability (24/7 tested, SafeSlot, SafeDIMM) with overclocking capabilities rarely seen on workstation platforms. The inclusion of a BMC header allows optional IPMI remote management, making it a flexible choice for IT-managed environments or standalone creator workstations. With 8 DDR5 R-DIMM slots supporting up to 2TB of memory, and 12+1+1 power stages powering the CPU, the W790-ACE is ready to handle Intel's most powerful Xeon W chips. The combination of high core counts, PCIe 5.0 expansion, and fast networking positions it as a serious contender for anyone building a high-end workstation on a budget that still demands professional features.

Compatibility Guide

CPU: LGA 4677 socket. Compatible with Intel Xeon W-3400 (Sapphire Rapids-WS, up to 56 cores) and W-2400 (up to 24 cores). No consumer Core processors are supported. Memory: 8 slots of DDR5 R-DIMM only. Maximum capacity 2TB (256GB per module). Registered DIMMs are required; standard UDIMMs will not work. ECC support is included. Memory speeds are typically DDR5-4800, but overclocking is possible. Form Factor: CEB (305×267mm). This is slightly deeper than standard ATX (305×244mm). Many ATX cases can accommodate CEB boards, but check the case specifications for compatibility. Some cases may have clearance issues with the right edge or cable management. Power: Main 24-pin ATX plus two 8-pin EPS12V connectors. Given the high TDP of Xeon W processors (up to 350W), a 850W PSU is recommended for single GPU; 1200W+ for multi-GPU builds. Storage: 2x M.2 PCIe 4.0 x4 slots with heatsinks, and 6x SATA 6Gbps ports (from Intel W790 chipset). No PCIe 5.0 M.2 slots, but the two M.2 slots are sufficient for fast NVMe SSDs. PCIe: 5x PCIe 5.0 x16 slots. Full x16 bandwidth on all slots when using Xeon W-3400; with W-2400, some slots may operate at x8 due to lane limitations. Physical slots are reinforced with SafeSlot technology.

Product Info

The ASUS Pro WS W790-ACE launched around May 2023. As of July 2026, it retails for approximately ¥175,000 in Japan (via). The warranty is three years standard from ASUS. This motherboard sits in the mid-to-high end of the workstation segment. It offers a unique blend of enterprise features (BMC header, ACCE security software) and enthusiast flexibility (overclocking, multiple GPU support). The 10G base-T Ethernet port (Marvell AQtion) and 2.5G port (Intel I225) provide future-proof networking.

Best Use Cases

3D Artists and VFX Professionals: The ability to run multiple high-end GPUs (e.g., NVIDIA RTX 6000 Ada) in full x16 slots is a game-changer for rendering. Pair with 128GB+ DDR5 R-DIMM and a Xeon W-3400 for maximum performance. AI/ML Engineers: Training deep learning models requires both GPU compute and memory bandwidth. The five PCIe 5.0 slots allow multiple GPUs to communicate at high speed, while the Xeon CPU can handle data preprocessing. Recommended for single-user or small-team setups. Video Editors and Colorists: Dual 10G/2.5G LAN enables direct connection to high-speed NAS or shared storage. The large memory capacity handles 4K/8K timelines smoothly. Not ideal for gaming, but for DaVinci Resolve or Premiere Pro, it's a solid choice. Who Should NOT Buy: Gamers or general desktop users. The platform is expensive, CPU cooler selection is limited, and you'll pay a premium for features you don't need. A consumer Ryzen 9 or Core i9 build will offer better value for gaming and typical productivity. ## Alternatives
ASRock W790 WS: Also based on Intel W790 chipset, but offers 7 PCIe 5.0 x16 slots (more expansion). However, it lacks onboard 10G LAN (only 2.5G) and does not support overclocking. It's slightly cheaper and better if you need maximum GPU count. Supermicro X13SEW-F: A true server-grade motherboard with integrated BMC/IPMI. It's more expensive but provides out-of-the-box remote management. No overclocking support. Choose Supermicro if stability and remote management are critical; choose ASUS if you want overclocking headroom and a more enthusiast-friendly BIOS.

Things to Consider

First, the CEB form factor can be tricky. Some ATX cases won't fit, especially those with integrated cable management bars. Always measure the case interior depth (at least 267mm). CPU cooler compatibility is limited. LGA 4677 requires specific mounting brackets. Noctua lists a few compatible coolers (NH-U14S TR4-SP3, but with adapters). Water cooling blocks f

Product Disclosure (Amazon)

  • Manufacturer: ASUS
  • Seller: EMTAS-shop01
  • Fulfilled by: EMTAS-shop01
  • ASIN: B0BZGM1P69
  • Note: This article covers a manufacturer-made product based on Amazon listing details.