Supermicro H11DSI-NT Dual AMD EPYC Server Motherboard: specs and who it suits

The Supermicro H11DSI-NT (model MBD-H11DSI-NT-B) is a server motherboard with two Socket SP3 sockets for AMD EPYC 7000-series processors. It's an E-ATX board for servers and heavy workstations that need many CPU cores, lots of memory and fast networking in one system. Here is what the listed specifications mean.

Two EPYC sockets

Socket SP3 is the socket for the first generation of AMD EPYC server processors, the 7000 series. With two sockets filled, the board can combine the cores and memory channels of both processors. Supermicro lists the board as supporting dual EPYC 7000-series CPUs. A single processor in one socket also typically works, though some memory slots and PCIe slots tied to the empty socket would then not be usable. Check the manual for the exact layout.

Memory

There are 16 DIMM slots, supporting up to 2TB of registered ECC DDR4 at 2666MHz. Registered ECC memory is the standard type for servers: ECC detects and corrects single-bit errors, and the register helps the board handle large amounts of memory. It isn't interchangeable with ordinary desktop memory, so modules have to be the right type.

Storage

The board provides 10 SATA3 ports, one M.2 slot and two SATA DOM connectors. SATA DOM (disk on module) ports are for small flash modules that plug straight into the port and are commonly used as boot drives, which frees up regular drive bays. The M.2 slot takes a compact SSD. Check the manual for which M.2 lengths and protocols the slot supports.

Networking and management

Two 10GBase-T LAN ports provide 10 gigabit networking over standard twisted-pair copper cable. In general, you need Cat6 or better cabling, and a switch or network card on the other end that supports 10GBase-T, to take advantage of the speed.

The board also has an ASPEED AST2500 BMC with graphics. A BMC is a small management controller that typically allows remote monitoring and control of the server, even when the main system is off, and gives basic video output without a graphics card.

Environment and size

The listing gives an operating temperature of 10°C to 35°C (50°F to 95°F), so the machine needs a reasonably cool room with good airflow. The board is large, roughly 12 by 13 inches in the listing's dimensions, and weighs about 2.2 lb. E-ATX is bigger than standard ATX, so not every case fits it.

Who it suits

It suits people building virtualisation hosts, storage servers, render or compute machines, or a lab system around first-generation EPYC processors. It's a specialist component for those comfortable assembling server hardware, not a general home-computer part.

What to check before you buy

• Case: confirm the case and mounting points accept the board's E-ATX size.
• Processors: buy EPYC 7000-series chips, and check that the BIOS version supports the exact model.
• Memory: use registered ECC DDR4, and read the manual for slot population order.
• Cooling and power: SP3 coolers and power supplies with the right connectors are needed, as the manual describes.
• Network gear: make sure your switch and cabling suit 10GBase-T.

The short version

• A dual Socket SP3 E-ATX board for AMD EPYC 7000-series processors.
• 16 DIMM slots with up to 2TB of registered ECC DDR4 2666MHz.
• 10 SATA3 ports, one M.2 slot and two SATA DOM connectors.
• Dual 10GBase-T LAN and an AST2500 BMC with graphics.
• Rated for an operating temperature of 10°C to 35°C.

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