ASUS Pro WS W790-ACE LGA 4677 CEB Workstation Motherboard PRO WS W790-ACE

Highlights

• Supports Intel® Socket LGA4677 for Xeon W-3500/W-3400 and W-2500/W-2400 series processors
• Supports up to 2048GB DDR5 ECC Registered (RDIMM) in 8 DIMM slots, quad-channel
• Dual high-speed networking: Marvell AQC113CS 10G and Intel I226-LM 2.5G Ethernet onboard
• Five PCIe 5.0 x16 SafeSlots for multi-GPU or expansion setups
• Two M.2 slots (one 22110 and one 2280) with heatsink coverage and PCIe 4.0 wiring
• Robust 12+1+1 DrMOS power stages and additional PCIe 8-pin power connector support
• Includes ASUS Control Center Express with activation key card in the box

Who should buy it

Choose this board if you need a validated workstation platform for professional multi-GPU, rendering, engineering or NAS/networking builds. If you need a consumer gaming motherboard or non-registered DIMM support, consider other product types.

Compatibility

Works with Intel Xeon W-3500/W-3400 and W-2500/W-2400 series processors (see ASUS CPU support list for exact models). It supports DDR5 ECC Registered (RDIMM) memory up to 2048GB; exact supported memory types, speeds and module counts depend on CPU and configuration. PCIe bifurcation, M.2 and shared-bandwidth details are listed in ASUS support and the manual.

• Supports Intel® Xeon® W-3500/W-3400 and W-2500/W-2400 Series Processors (refer to ASUS CPU support list for specifics)
• Supports DDR5 ECC Registered (RDIMM) memory; supported memory types, data rate and number of DRAM modules vary depending on CPU and memory configuration
• PCIe bifurcation, M.2 and other shared-bandwidth configurations are listed in manual/support pages; check ASUS support for exact compatibility and bifurcation tables

What's in the box

• 1 x Pro WS W790-ACE motherboard
• 2 x SATA 6Gb/s cables
• 1 x Q-connector
• 1 x M.2 Rubber Package and 1 x M.2 backplate Rubber Package
• 1 x CPU guard for LGA 4677 E1A and 1 x CPU guard for LGA 4677 E1B
• 1 x ACC Express Activation Key Card
• 1 x User guide

Frequently asked questions

Which Intel Xeon W-series processors are supported by the Pro WS W790-ACE (exact CPU model list)?

The motherboard supports Intel® Xeon® W-3500/W-3400 and W-2500/W-2400 series processors; for an exact CPU model list please refer to the ASUS CPU support list on their site.

What maximum DDR5 RDIMM speed and configuration are supported with my chosen CPU?

The board supports DDR5 ECC Registered (RDIMM) with supported speeds up to listed OC rates (for example 6800/6600/6400...4800); maximum speed and configuration depend on the chosen CPU and memory configuration as noted by ASUS.

Does this motherboard support ECC and non-ECC memory, and which memory vendors/models are validated?

This board supports DDR5 ECC Registered (RDIMM) memory. Validated memory vendors and models are listed in the Qualified Vendor List on ASUS support pages.

What are the exact PCIe bifurcation modes for the five PCIe 5.0 x16 slots?

PCIe bifurcation and exact slot modes (x16, x16, x16, x0/x8, x16/x8) and other shared-bandwidth configurations are provided in the manual and ASUS support pages.

Which M.2 slots support which lengths (22110, 2280) and are they PCIe 4.0 or 5.0?

There are two M.2 slots noted on the product page: one M.2 22110 and one M.2 2280; two M.2 slots are wired for PCIe 4.0 bandwidth and are covered by heatsinks.

Is IPMI/iKVM functionality available out of the box or is an ASUS IPMI expansion card required?

The board supports remote management with ASUS IPMI expansion card; ASMB iKVM/IPMI capabilities are available with the expansion card, and ASUS Control Center Express is included.

What headers and front-panel connectors are provided for USB 3.2 Gen 2x2 Type-C front panel support?

The product includes a USB 3.2 Gen 2x2 Type-C front-panel-ready connector and multiple USB 3.2 Gen1/Gen2 and USB 2.0 ports; see the full I/O list on the product page for exact headers.

What is included in the box (cables, activation key, guards) and are there any optional accessories?

Box contents include the Pro WS W790-ACE motherboard, 2 SATA 6Gb/s cables, Q-connector, M.2 rubber package and M.2 backplate rubber package, CPU guards for LGA 4677 E1A and E1B, ACC Express Activation Key Card, and a user guide. Optional accessories such as the ASUS IPMI expansion card are referenced in compatibility notes.

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