Not all motherboards are created equal. Compared to consumer hardware, prosumer level options with workstations opt for different peripheral features, but ultimately it comes down to support. The Supermicro X11SPA-T is a single socket workstation motherboard with a range of high-end features, designed to support both Intel Xeon Scalable CPUs and Xeon-W 3200 series CPUs, but its focus is with the workstation hardware on the C621 chipset. With support for up to 2 TB of DDR4-2933 memory (Xeon W) or 3 TB (Xeon Scalable) across twelve slots, a dedicated ASPEED BMC controller offering IPMI functionality, and seven full-length PCIe 3.0 slots, the Supermicro X11SPA-T looks like one of the premium high-end options for users looking to build a Xeon W-3200 based workstation.

The Supermicro X11SPA-T Overview

Earlier on in the year, Intel dropped its new Xeon W-3200 Cascade Lake based processors which range from its base 8-core Xeon W-3223 model, right up to its Xeon W-3275 with 28 cores and 56 threads, each supporting 1 TB of memory. There is also the W-3275 which supports 2 TB. The primary use for the Intel Xeon-W range is workstations, and Cascade Lake enables certain internal fixes for the Spectre and Meltdown security flaws outlined over the last year. Some of the benefits of the LGA3647 socket Xeon W-3200 processors include six memory channels, support for AVX-512, and 64 PCI lanes on-chip, which allows for four PCIe 3.0 x16 slots to be used.

Supermicro uses its own product naming scheme which it publishes on its website to help users distinguish differences between models. Deciphering the Supermicro X11SPA-T reveals that it's designed for 11th gen (as defined by Supermicro) Xeon Scalable processors, that it's a single socket LGA3647 Purley model, it's on a workstation platform, and that it has 10 gigabit Ethernet. 

One board designed to use all of what the Intel Xeon W-3200 family has to offer is the Supermicro X11SPA-T, with a high-end feature set across its large E-ATX PCB. Not every user requires a dual-socket solution, and on paper, the X11SPA-T looks to tick a lot of boxes for users looking for the foundation to a single socket workstation. Not only does it feel it has solid presence, but a full set of DRAM slots, a full array of seven reinforced PCIe slots, four M.2 slots with heatsinks, and as the name suggests, 10 gigabit Ethernet.

As this is a workstation board, it has an ASPEED AST2500 IPMI chip for external control, which is also combined with an onboard D-Sub output, and an integrated Realtek RTL8211E PHY which allows users to access the IPMI via a network when the system has power but isn't switched on. Design-wise, it's the quintessential Supermicro workstation board with a core black theme across the PCB, and heatsinks, which cover the vital areas which need cooling. The twelve memory slots support up to 1 TB or 2 TB depending on the Xeon W-3200 series processor used, meaning 8 x 64 GB + 4 x 128 GB for 1 TB, and 8 x 128 GB + 4 x 256 GB for 2 TB. 

For the PCIe lanes, one of the most dominating aspects to the Supermicro X11SPA-T is the seven full-length PCIe 3.0 slots towards the bottom left-hand corner. They operate at x16/x0/x16/x0/x16/x0/x16, or x16/x8/x8/x8/x8/x8/x8 depending on how PCIe devices are installed. Three of the full-length slots share bandwidth with three of the PCIe 3.0 x4 M.2 slots, so there is some muxing involved. There are four PCIe 3.0 x4 M.2 slots, each featuring its own heatsink. Users looking to use these in RAID with Intel (and other approved) drives can do so, as Supermicro includes a VROC RAID key within its software bundle for RAID 0 and 1 support. For SATA drives and devices, there are eight SATA ports which support RAID 0, 1, 5, and 10 arrays. 

Looking at the networking on the Supermicro X11SPA-T, there are three Ethernet controllers; one Aquantia AQC107 10 G, one Intel I210-AT Gigabit, and a Realtek RTL8211E PHY dedicated to the boards integrated BMC/IPMI chip. Also on the rear panel is four USB 3.1 G1 Type-A ports, with a single USB 3.1 G2 Type-A, and one USB 3.1 G2 Type-C port. Users can expand on this with a single USB 3.1 G1 headers allowing for two extra Type-A ports, and a single USB 2.0 header which also supports two additional ports. The boards five 3.5 mm audio jacks and S/PDIF are controlled by a Realtek ALC888 HD audio codec. 

Overall this board feels substantial. There's nothing fancy like an onboard RAID controller, but for almost everyone who wants to throw the kitchen sink at an Intel workstation system, on paper at least, Supermicro has a very substantial product for the market.

Performance in ~200 Words - Read the Full Review for a Complete Analysis

Comparing performance to previous Intel X299 HEDT motherboards and Intel C246 based models, everything seems on par with what's expected. We were given the W-3235 to test with, which is a 12-core processor, while our comparison reviews used the consumer 10-core. The extra cores of our Intel Xeon W-3235 do perform better in some of our CPU focused tests, but does fall in-line with other models tested in memory heavy tests such as in Blender, and WinRAR. Unsurprisingly in our system tests, power draw is naturally higher than other models previously tested due to the higher core count, and in our non-UEFI POST time test, booting times are much higher than with conventional consumer-focused models due to the added features.

Amazon Widget

The Supermicro X11SPA-T has a current retail price of $650 at Newegg, and as a result, doesn't have much competition. It's a premium workstation focused model that currently supports all of Intel's Xeon W-3200 product stack, with a lot of headroom for various configurations. If you can find a processor to pair it with, the seven full-length PCIe 3.0 slots are perfect for virtualization tasks, and lots of PCIe 3.0 x4 M.2 and eight SATA ports add plenty of storage capability. Supermicro has seemingly gone all out with its X11SPA-T, but it's time to see how it compares to other Intel HEDT we have tested, including the Supermicro X11SRA motherboard which we tested with the previous generation Intel Xeon W-2155 10-core 20-thread processor.

Read on for more extended analysis.

Visual Inspection
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  • Tomatotech - Saturday, January 25, 2020 - link

    I don’t have prices to hand but there has been discussion that the Mac Pro is competitively priced compared to buying the same parts yourself.

    As said above, if you want Apple, get the Mac Pro. If your time is valuable, get it pre-built with a support contract that probably costs an extra $5k+ (which is very worth it for commercial buyers).

    I’d say only build this kind of system yourself if your time isn’t worth much - but then you wouldn’t be able to afford it - or if you have free support eg graduate students to farm it out to.
  • FunBunny2 - Saturday, January 25, 2020 - link

    "I don’t have prices to hand but there has been discussion that the Mac Pro is competitively priced compared to buying the same parts yourself."

    That's always true; BigCorps buy in bulk and therefore at lower unit cost. There's a reason Amazon is killing local stores, and that's it. Trouble is, either consumers ignore the transport cost, or Amazon eats it. So far, it's mostly the latter. (e-tail will, in due time, devolve into supplying only low volume niche products that aren't profitable to stock locally.) Also, it turns out, in recent years most (i.e. more than 50%) of Amazon's turnover is from other vendors. Don't know how much Amazon's cut is, but the notion of 'central purchasing' beating on price might not be a given.
  • Death666Angel - Monday, January 27, 2020 - link

    For some mid range configurations, the price is maybe okay. But you really should not upgrade the SSD or RAM at all via Apple, as far as I know, since the prices are steep. And the entry level is 5k for an 8 core, I believe?
    I stand by it, if you need MacOS, get Apple, otherwise why get a product that locks you into using Intel CPUs and AMD GPUs, both of which are not the be all end all these days in performance. Apple support also seems questionable with the Pro products, compared to other companies. Plus, if you don't need MacOS, chances are you need Windows or Linux and those don't run great (at all) on the Mac Pro.
    And my "build it yourself" was not meant as a stict "get all the cheapest parts from 5 different vendors, then assemble it and test out all the edge cases". This isn't LTT. But not going with Apple allows you the freedom to check out all the classic workstation vendors and boutiques, look for the combination of CPU, GPU, RAM and storage that fits your needs with an OS and applications you actually use and then decide which brand you trust most and see who has competitive pricing.
  • peevee - Monday, January 27, 2020 - link

    Is it the same company which has integrated Chinese spy chips on its boards?
  • HoLiFuc - Wednesday, January 29, 2020 - link

    That story was a whole lot of BS, is was already debunked already ages ago by Supermicro and other company's who where supposed to be affected.
  • otherwise - Wednesday, February 26, 2020 - link

    That was proven to be false. You might be thinking of Huawei which is still under sanctions for these claims.
  • ender8282 - Monday, January 27, 2020 - link

    Why no thread ripper comparisons?
  • duploxxx - Thursday, January 30, 2020 - link

    Because that would scratch half of the Intel benches from the graph
  • HollyDOL - Tuesday, January 28, 2020 - link

    Is it just me or is the board much more visually clean (layout wise, no rubbish etc.) than mainstream boards?
  • Xajel - Tuesday, January 28, 2020 - link

    I wish we see more mainstream workstation boards, things for Z390, X570 & TRX40 also...

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