Thanks for sharing. I've been planning on building a deep learning box with 4x2080's, but I've been concerned about the loss of the blower style coolers in such a dense configuration. Have you seen any good 2080 Ti's with blowers? Alternatively, I might just go for 2 Titans. The larger memory via 2 way NVLink and faster tensor cores might outweigh the loss of FP32 compute for my purposes.

As for the Epyc, I've seen more people going for the TR2. Seems like the clock on the 7401P is lower, maybe that's why? Or maybe people are just less familiar with dealing with server hardware and are worried that they don't know what they don't know.