@livada please don't overquote too much, it's hard to read...
I have two rigs: 8xVega64 and 4xVega56, both dig CNv7 with weeks of stable uptime. I interrupt it only for miner updates. I guess running GPU-Z makes problems, not the miner itself.

I've made it recently
https://bitcointalk.org/index.php?topic=4324950
Somebody please report if you like it. It will not format your drive, I promise )