I have settled on putting an Intel Xeon in an ASUS WS MB, and want to use Kingston 16GB (4 x 4GB) 240-Pin DDR3 SDRAM ECC Unbuffered DDR3 1600 Server Memory Mode. (Post edited after realizing the P9X79 WS MD may not be compatible with ECC - Asus specs say it is; Newegg doesn't show it will take the Xeon.)
Does anyone know of a good combination of MB and ECC memory? It will be running simultaneously MS Office programs and image programs, like Adobe and PaintShop Pro, so the loss of system speed is not as big an issue as it would be with a CAD rendering.
(Yes, I know non-ECC memory is "just as good", but it will be in a mission critical workstation.)
Well, more internet reading suggests Asus may have serious issues with ECC memory in its WS motherboards. Maybe that's why Newegg doesn't show the same specs that Asus does for the ASUS P9X79 WS LGA 2011.
So it looks like Super Micro is the way to go. I'm not a gambler.