There is a new challenger, it's CORN! Cornbread Tortillas Corn chips Corn flakes Corn pudding Pop corn

Bourbon whiskey Corn whiskey Corn vodka Corn-based beers Some types of moonshine

It's supposed to be a "feature" that they ramp all the way up to 110 C at the junction, nothing to be alarmed about...

I had the same issue with my 6800 XT, but can keep the thermals down to 70° with undervolting.