I suppose REG means registered, which will not work with any consumer grade board. Only ECC will be supported. So the mentioned kit is definitely not going to work if that is the case.I'm looking to put the R7 3800x on the msi b450i with ac mini-itx mobo which can run ECC in non-ECC mode. I read through the thread and I don't want to play the lottery on the purple 16gb ADATA vlp sticks. I'm more inclined on waiting for the CT16G4XFD8266S to restock. But just saw Optimum Tech's recommendation for Crucial DDR4-2666 16GB/2Gx72 VLP ECC/REG CL19 Server Memory.
Is there any reason why one shouldn't get server memory? Is this also a viable option?