I am digging my 3x VEGA-64 cards on Cryptonight.
Super low temps running ~1800 H/S per card.
yesterday I have managed to install my first vega 56 into the rig with 5 gtx 1080ti
it took about 4 hours straight to make it work, but now that PC push out like 2K h/s o cryptonight + 16.3 mh on XZC
if it would be stable, I'm happy