With Claymores BTG Miner v12.6, this is error I see in miner txt file, after my screen goes blue and PC restart:
"OC v7, Reset control for GPU 0, close miner right now if you want to use default control from Catalyst"

I use 470/480 Crimson Beta 23.Aug and tryed Crimson 17.11.2 and 17.7.2, same problem.
How to fix that Catalyst error? Drivers work well mining eth.