Initially, the Intel LGA-3647 platform was created for cloud computing, which requires a high density of CPU cores in one CPU socket, but over time there were good motherboards for workstations on Xeon Scalable, and this year this CPU socket and does loomed as a top solution for enthusiasts who are ready to buy 28-core Xeon W-3175X and motherboards such as Gigabyte C621 Aorus Xtreme or Asus ROG Dominus. But, of course, solutions from Asus and Gigabyte - is rather a piece product for some special cases, and the mass use of processors Xeon Phi and Xeon Scalable - it’s still servers and workstations.
Coolers for LGA-3647 are on sale very rarely, and mainly when assembling a server or a working machine, you will be offered OEM cooling from Dynatron or Supermicro companies, that is, those solutions where no one thought about the noise level. Noctua has two models for this socket: NH-U14S, NH-U12S, and NH-D9 4U with DX-3647 indexes. Because of the gigantic size of the socket, these coolers are not compatible with any other CPU connectors, and each of these models is designed for specific needs. For example, the NH-U14S 140mm with fan for desktop workstations, which is important for quiet operation, the NH-U12S a version of it with the new Noctua fans A12x25PWM, and NH-D9 4U is a compact cooler with a height of 134 mm, which will not interfere with any neighboring memory modules or PCI Express cards.
All three Noctua coolers have two types of mounts: Narrow Type and Square Type, so they are compatible with all motherboards under Socket 3647.