Are you running a monitor on that gpu? Currently that means you'll have to tune down the config manually, but we're about to add code for detecting and adjusting that automatically. The Windows TDR timeout can also still be bitchy at times, I'm about to run more tests on that today and add automatic behavior for that too.
Yes monitor running off GPU. Its not aggressive as I like low temps - vega56, under clock, under volt. Let me know if you want details. On default settings it crashes and screen reset (went black for ~ 20secs) so its likely the new drivers not quite perfect?