Supermicro epyc motherboard

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Supermicro Solutions Based on AMD EPYC™ EMBEDDED 3000-Series Processors

Supermicro introduces next-generation A+ Servers and M11 Motherboards with AMD EPYC™ EMBEDDED 3000 high-performance processors for Networking, Storage, and Edge Computing Devices.

Supermicro expands its server and motherboard product family with AMD EPYC EMBEDDED 3000-series processors to harness the breakthrough performance benefits of the "Zen" CPU architecture, bringing exceptional reliability, availability and serviceability features to networking, storage and industrial applications.

Supermicro servers along with the AMD EPYC EMBEDDED 3000 CPU have set a new benchmark for innovation and performance-per-watt, giving system designers a compelling and cost-effective new choice in x86 embedded processing, leveraging major advancements in I/O integration, flexibility, and security capabilities.

Supermicro building block solutions provide system designers the tools and capabilities to design high performance feature rich next generation network function virtualization (NFV), software defined networking (SDN), networked storage infrastructure, and a wide range of industrial applications.


SUPERMICRO MBD-H11DSI-NT Mainboard, Factory Installed with 2 x AMD EPYC Rome 64 Cores 7702 CPU

Power for Excellence

Based on cutting-edge "Zen 2" architecture and built using advanced 7nm process technology, the all-new AMD EPYC Rome 7702 processor brings far more instructions per cycle (IPC) throughput, more cores and more cache into a smaller area, and more energy efficiency when compared to the previous generation. No server application is heavy with the power of its 64 cores (128 threads) running at up to 3.35 GHz.

Farewell to Memory Insufficiency

High server workload is great to grow your business. But heavy traffic puts an exacting demand on your hardware. Designed with that in mind, this server motherboard is ready to take huge-capacity memory with its 16 DIMM memory slots. You can install up to 2 TB registered ECC DDR4 2666 MHz SDRAM memory.

Expand for Brilliance

With two PCI-E 3.0 x16 slots and three PCI-E 3.0 x8 slots, you can add various combinations of graphics cards and add-on cards needed for high-performance computing.

Future Ready Storage

Among the 10 SATA 3 ports, two are SATA DOM power ports allowing the installation of SATA DOM flash memory modules without the need of a cable. In addition to 10 SATA 3 (6 Gbps) ports, the motherboard also features a M.2 slot, letting you install SATA/PCI-E 3.0 x2 solid state-drive in 2280, or 22110 form factor.

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Users looking to build their own dual EPYC workstation or system, using completely off-the-shelf components, do not have a lot of options. Users can buy most of the CPUs at retail or at OEM, as well as memory, a chassis, power supplies, coolers, add-in cards. But the one item where there isn’t a lot of competition for these sorts of builds is in the motherboard. Unless you go down the route of buying a server on rails with a motherboard already fitted, there are very limited dual EPYC motherboard options for users to just purchase. So few in fact, that there are only two, both from Supermicro, and both are called the H11DSi. One variant has gigabit Ethernet, the other has 10GBase-T.

Looking For a Forest, Only Seeing a Tree

Non-proprietary motherboard options for building a single socket EPYC are fairly numerate – there’s the Supermicro H11DSL, the ASRock EPYCD8-2T (read our review here),  the GIGABYTE MZ31-AR0 (read our review here), or an ASUS KNPA-U16, all varying in feature set and starting from $380. For the dual socket space however, there is only one option. The Supermicro H11DSi, H11DSi-NT, and other potential minor variants, can be found at standard retailers from around $560-$670 and up, depending on source and additional features. All other solutions that we found were part of a pre-built server or system, often using non-standard form factors due to the requests of the customer those systems were built for. In being the only ‘consumer’ focused motherboard, the H11DSi has a lot to live up to.

As with other EPYC boards in this space, users have to know which revision of the board they are getting – it’s the second revision of the board that supports both Rome and Naples processors. One of the early issues with the single socket models was that some of them were not capable of Rome support, even with an updated BIOS. It should be noted that as the H11DSi was built with Naples in mind to begin with, we are limited to PCIe 3.0 here, and not the PCIe 4.0 that Rome supports. As a result, we suspect that this motherboard might be more suited to users looking to extract the compute out of the Rome platform rather than expanded PCIe functionality. Unfortunately this means that there are no commercial dual socket EPYC motherboards with PCIe 4.0 support at the time of writing.

The H11DSI is partly E-ATX standard and part SSI-CEB, and so suitable cases should support both in order to get the required mounting holes. Using the dual socket orientation that it has, the board is a lot longer than what most regular PC users are used to: physically it is one square foot. The board as shown supports all 8 memory channels per socket in a 1 DIMM per channel configuration, with up to DDR4-3200 for the Revision 2 models. We successfully placed 2 TB of LRDIMMs (16 * 128 GB) in the system without issues.

As with almost all server motherboards, there is a baseband management controller in play here – the IPMI ASPEED AST2500 which has become a standard in recent years. This allows for a log in to a Supermicro interface over the dedicated Ethernet connection, as well as a 2D video output. We’ll cover the interface on the next page.

Ethernet connectivity depends on the variant on the H11DSi you look for: the base model has two gigabit ports powered through an Intel i350-AM21 controller, while the H11DSi-NT has two 10GBase-T ports from the Intel X550-AT2 on board. Due to this controller having a higher TDP than the gigabit controller, there is an additional heatsink next to the PCIe slots.

The board has a total of 10 SATA ports: two SATA-DOM ports, and four SATA ports from each CPU through two Mini-SAS connectors. It’s worth noting that the four ports here come from different CPUs, such that any software RAID across the CPUs is going to have a performance penalty. In a similar vein, the PCIe slots also come from different CPUs: the top slot is a PCIe 3.0 x8 from CPU 2, whereas the other slots (PCIe 3.0 x16/x8/x16/x8) all come from CPU 1. This means that CPU 2 doesn’t actually use many of the PCIe lanes that the processor has.

Also on the storage front is an M.2 x2 slot, which supports PCIe and SATA for Naples, but only PCIe for Rome. The power cabling is all in the top right of the motherboard, for the 24-pin main motherboard power as well as the two 12V 8-pin connectors, one each for the CPUs. Each socket is backed by a 5-phase server-grade VRM, and the motherboard has eight 4-pin fan headers for lots of cooling. The VRM is unified under a central heatsink, designed to take advantage of cross-board airflow, which will be a critical part in any system built with this board.

We tested the motherboard with both EPYC 7642 (Rome, 48 core) processors and the latest EPYC 7F52 (Rome, 16 core high frequency) processors without issue. 

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