I'm looking at raw memory speed in a setup where RAM bandwidth is important. Right now the servers are using Xeon E5 16xx v3's and v4's with about 96 - 160 GB of ECC RDIMM 2133/2400.
A lot of people ask online about the difference between ECC and Registered RAM, and get told they are completely separate things - I understand the difference and know which RAM I'm asking about :)
In this case, unbuffered ECC (UDIMMs) may be better than registered ECC (RDIMMs/LRDIMMs), because I don't need registration or buffering really, the amounts of RAM aren't large enough to justify it, and the speed will benefit from avoiding it.
But my usual motherboard preference, SuperMicro X10 range, state under RAM, that it runs with RDIMM or LRDIMM, not UDIMM (or UDIMM with ECC).
Do any server board manufacturers make similar/better/good quality boards (generally viewed as comparable to Supermicro or better), that accept up to 8 slots of unbuffered (UDIMM) ECC? If so, could I have some recommendations?
My usual motherboard spec is something like the Supermicro X10SRi-F: Intel based, 2011-3 single CPU, 8 slots RAM, IPMI, at least 1 PCIe-16 and space for 3 or 4 PCIe-8's, can handle Xeon v3/v4. Ideally allows fully loaded RAM at 2400 not just 2133 and has onboard vga (aspeed etc) but I can always add a cheap video card if not.