Years ago, the Intel Xeon D-1500 series was a new product line for Intel. The Supermicro X10SDV series of Xeon D-1500 series reviews were very popular. Now, we have the Ice Lake-D version, the Supermicro X12SDV-4C-SP6F. This has a lower-end Intel Xeon D-1718T but that is only part of the story. Supermicro is also utilizing the chip’s onboard 25GbE networking.
Supermicro X12SDV-4C-SP6F Overview
The motherboard itself is one of Supermicro’s FlexATX offerings. While Supermicro still has many mITX offerings, the additional capabilities of today’s Intel Xeon D and Atom offerings often mean that there is more I/O than can be reasonably fit onto a mITX platform. As a result, Supermicro has a line of FlexATX motherboards that use the extra width to expose that I/O.
The X12SDV tells us it is a X12 single socket Xeon D platform. The -4C- in the model number tells us this is a 4-core Xeon D. In this case, it is the Intel Xeon D-1718T. One may immediately think of it as the update to the Intel Xeon D-1518. Embedded parts have a 7+ year lifecycle, so 2015 to 2022 would be about right. If you want to learn more about the Xeon D-1700 and D-2700 series, check out our video:
The part still is 4 cores/ 8 threads, but it is a two or two and a half generation newer microarchitecture with more cache. Base clock speeds are up almost 20% and there is the ability to boost to almost 60% higher clocks than that predecessor. That is a decent tradeoff for a 11W TDP bump, but we also get faster memory, PCIe Gen4 (the older generation was Gen2 and Gen3), and a host of other new features.
We wanted to quickly point out that many of our readers will see a passive heatsink affixed to this motherboard. That is because it is designed for chassis fans providing airflow. The small heatsink is not enough to keep the 46W SoC cool without chassis airflow.
Supermicro is using a more traditional two-channel and two DIMM per channel (2DPC) layout here. As we covered in our Welcome to the Intel Ice Lake D Era piece, the Xeon D-1700 actually has three memory channels available, but we commonly see two channels being placed as they are here. On top of the memory channels is a sticker with the BMC password.
On the bottom of the motherboard, we get the Intel i350 NIC, the BMC, two PCIe slots, and other storage connectivity.
The two PCIe slots can be configured as PCIe Gen4 x16 or the second slot can be used in a Gen4 x8/x8 configuration.
One feature we appreciate is that Supermicro uses an open-ended x8 physical slot to allow for longer cards to be placed in the slot.
On the M.2 slot, there is a SATA / PCIe Gen3 x4 slot. There is also a Gen3 x2 slot that supports SATA/ PCIe/ USB 3. There is also a PCIe Gen3 x1 slot.
In this generation, we only get two 7-pin SATA headers. The “gold” header provides SATADOM power. There are also two SlimSAS connectors that can provide either PCIe Gen3 x4 lanes via cabling or 4x SATA III ports.
Perhaps the most exciting feature is the rear I/O. Here we get Supermicro’s standard two USB 3 Type-A ports, a VGA port, and an out-of-band management port. Then comes the networking. There are four 1GbE ports. Two are Intel i210 and an Intel i350-am2 powers two.
The SFP28 cages are 25GbE ports that are powered by the Intel Xeon D-1700 SoC. We are going to look at them in more depth later in this review.
Next, let us get to management and performance.