ASUS Pro WS W790E-SAGE SE: seven PCIe 5.0 slots, eight memory channels, one serious workstation board

This is the board you buy when a desktop platform runs out of lanes. Built on the Intel W790 chipset for Xeon W-3400 and W-2400 processors (LGA4677), the Pro WS W790E-SAGE SE puts the slots, memory and networking that a multi-GPU AI rig, render node or simulation workstation needs on a single board.

Condition: open box, never installed

• Box was opened, but the board was never installed. No CPU ever mounted and never powered on, so it has not been bench tested.
• LGA4677 socket protective cover is still in place.
• Original ASUS retail box and accessory kit. Not every factory accessory may be present, so message me if you need a specific part confirmed.
• The photos show the exact board you will receive.

Why builders pick this board

• Seven PCIe 5.0 slots running x16/x16/x16/x16/x16/x8/x16 with a Xeon W-3400 CPU (four x16 slots with a W-2400). Room for a real multi-GPU stack.
• Up to 2TB of DDR5: 8 DIMM slots, 8-channel memory architecture, ECC Registered memory, Intel XMP support.
• Dual Intel 10Gb Ethernet plus a Realtek 1Gb port.
• Fast storage everywhere: 2 x M.2 PCIe 5.0 x4, 1 x M.2 PCIe 4.0 x4, 2 x SlimSAS (PCIe 4.0 x4 NVMe) and 8 x SATA 6Gb/s, with Intel VROC and VMD support.
• Server-style management: onboard ASPEED AST2600 with IPMI support and VGA output.
• Power input to match: dual 24-pin main power, 4 x 8-pin +12V, plus 8-pin and 6-pin PCIe power connectors.
• Modern I/O: rear USB 3.2 Gen 2x2 Type-C, 5 x USB 3.2 Gen 2 (4 Type-A + 1 Type-C), 2 x USB 2.0, a front USB 3.2 Gen 2 Type-C connector, and Realtek S1220A 7.1 audio with optical S/PDIF out.
• Builder friendly: BIOS FlashBack and Clear CMOS buttons on the rear panel.

Key specs

• Socket: Intel LGA4677
• Chipset: Intel W790
• CPU support: Intel Xeon W-3400 and W-2400 series
• Memory: 8 x DDR5 ECC Registered, up to 2048GB, DDR5-4800 with overclocked speeds listed up to 6800
• Form factor: SSI EEB, 12 x 13 in (30.5 x 33 cm)
• Operating system: Windows 11, Windows 10 64-bit

Know before you buy

• This board needs a Xeon W-3400 or W-2400 CPU and DDR5 ECC Registered (RDIMM) memory. Standard desktop DDR5 is not on the supported list.
• With a W-2400 CPU, four of the seven PCIe slots are active and the M.2_1 and M.2_2 slots are disabled. A W-3400 CPU unlocks everything.
• EEB is a big board at 12 x 13 inches. Confirm your case supports SSI EEB.
• CPU, memory, cooler and drives are not included.

Shipping

Ships from Henderson, Nevada with tracking. Questions are welcome before you buy.