yeh I was getting wierd crashes on my gtx1080ti, and it was getting temps like yours used too. so I decided to slap an unused corsair aio water cooler on it, when I took off the stock cooler I found there was hardly any paste on it, almost transparent coating, it was an evga card also
since I did the cooler swap, my temps have been cut in half, and it has not crashed once, also so much quieter
I think on the picture you posted there might of been too much paste actually, and it looked like there was a dry spot in the middle, maybe it was because the cooler was not tightened down enough?
anyway glad you got it sorted
good thing with the evga cards, taking off the cooler does not void your warranty