I have my own Cavium rep. Show me a real CPU, board and worthwhile sheet metal (i.e 10+ nvme) I can buy in volume because you might know something he doesn't and I'd be happy to eval it.

see i.e. https://www.servethehome.com/gigabyte-thunderxstation-using-... for public info

"At STH we are working with Gigabyte and Cavium and will share more about the ThunderX2 architecture as we are given the go-ahead. We have heard the next production run is in the Q2 2018 timeframe."

This has been my experience with cavium, bait and switch slideware and when you do finally get a sample it has so far been undesirable (octeon, TX1)