Motherboard ASUS PRO WS W790E-SAGE SE LGA4677 - 90MB1C20-M0EAY0

ASUS PRO WS W790E-SAGE SE is a serious workstation motherboard for LGA4677, aimed at Xeon W-3400 and W-2400 systems, where you need many cores, a lot of RAM, and many PCIe lanes. The form factor is EEB, so we are talking about a large board for a serious case and well-planned airflow. You have 8 DIMM slots DDR5 and up to 2048 GB RAM with a quad-channel architecture, plus a solid set of PCIe 5.0 slots for GPU, capture cards, NVMe adapters, and more. The built-in dual 10Gb Ethernet ports make it convenient for high-throughput workstations and server scenarios right out of the box.

What you get

The LGA 4677 socket and Intel W790 chipset give you a platform for Xeon W-3400 and W-2400, which means many PCIe lanes and stability for professional workloads – 3D rendering, simulations, video, storage-heavy tasks. With up to 2048 GB DDR5 in 4-channel architecture, you can build configurations for massive projects, in-memory databases, or heavy virtualization, where RAM is key. The three M.2 slots (including two PCIe 5.0 x4) and 2 x SlimSAS with PCIe 4.0 x4 allow you to attach several fast NVMe drives directly, without additional cards. Separately, 8 x SATA3 with support for RAID 0/1/5/10 cover your needs for a large storage array – from working scratch disks to archives. Dual 10GbE + 1GbE give you flexibility for traffic separation – production network, storage, management – without having to install separate LAN cards.

• The board uses Intel W790 chipset and LGA 4677 socket, optimized for Intel Xeon W-3400 and W-2400 processors for professional and heavy workloads.
• It features 8 DDR5 DIMM slots, supporting up to 2048 GB RAM and 4-channel architecture for high memory bandwidth.
• Supports RAM frequencies up to 6800+ MHz (OC), allowing you to combine large capacity with high frequency according to application needs.
• Offers a total of 3 x M.2 slots (two PCIe 5.0 x4 and one PCIe 4.0 x4) plus 2 x SlimSAS ports with PCIe 4.0 x4 for NVMe devices – ideal for a very fast storage array.
• Provides 7 x PCIe 5.0 slots with Xeon W-3400 (x16/x16/x16/x16/x16/x8/x16) or 4 x PCIe 5.0 slots with Xeon W-2400 (x16/x16/x16/x16), giving you enough space for GPU, RAID, and other cards.
• Has 8 x SATA3 6.0 Gb/s ports with RAID 0/1/5/10 support, suitable for large storage configurations and data protection.
• Network connectivity is strong: 2 x Intel dual 10Gb Ethernet and 1 x Realtek 1Gb Ethernet, plus ASUS LANGuard for higher reliability.
• The rear I/O offers 8 USB ports (incl. USB 3.2 Gen 2x2 Type-C), VGA for management, and BIOS FlashBack / Clear CMOS buttons for easier firmware and troubleshooting.
• The built-in audio is Realtek S1220A 8-channel high definition CODEC, sufficient for professional work, monitoring, and multimedia.

Who it is suitable for

This motherboard is for serious workstation configurations – 3D and VFX studios, CAD/CAE, scientific simulations, heavy video editing, virtualization, and tasks where you need many cores, a lot of RAM, and many PCIe devices. It is not aimed at a typical gaming build – if you only need one GPU and a standard amount of RAM, there are more logical and cheaper options.

The combination of LGA 4677 with Xeon W, huge RAM capacity, many PCIe 5.0 slots, and built-in dual 10GbE makes the ASUS PRO WS W790E-SAGE SE a board for configurations that are built once and then work hard for years.