ASRock has made its new super-small but monster-packed ASRock Rack MITX EPC621D4I-2M motherboard that packs the Intel LGA 3647 socket that is capable of taking an Intel Xeon Scalable CPU.
The new ASRock Rack MITX EPC621D4I-2M board uses the C621 chipset and is the smallest C621-based motherboard on the market, the smallest board capable of taking the latest Skylake-SP and Cascade Lake-SP processors in the Intel Xeon Scalable family of CPUs. The board can handle up to 128GB of DDR4 memory at up to 2666MHz while the new ASRock Rack MITX EPC621D4I-2M motherboard packs:
- 2 x DIMM (128GB DDR4 RAM support)
- 1 x PCIe 3.0 x16 slot
- 2 x M.2 slots
- 5 x SATA ports
- 2 x USB 3.0 ports
- 1 x RJ45 GbE
- 1 x VGA connector
The board can handle most CPUs apart from the high-end Xeon W-3175X because the ASRock Rack MITX EPC621D4I-2M supports CPUs at up to 205W, so the rest of the CPUs including other 28C/56T chips will be fine. While the Xeon W-3175X will work in the board, you'll hit that 205W TDP pretty quickly and see the CPU clocks drop quickly. I wouldn't bother.
ASRock cools the EPC621D4I-2M motherboard with a small heat sink with extended aluminum fans and a single 8-pin PCIe power connector.