Havent done Zcash in a while but back then I was doing 770-780 and "IF" i'm lucky 790-800 but very rare this high.
+60 Core
+800 Mem
I also have the power at 115% because free electricity lol.
Fans at 95% because thats what they are designed to be at.
temps were around 60-68C
Several EVGA 1080ti FTW3
Mining Skein at Hashrefinery and Ahashpool seems the best thing right now for these cards.
there's no such thing as "free" electricity here, just because YOU aren't paying for it, i assure you SOMEONE IS

95% fan your gonna burn one out pretty quick i give them 2 months, where did you see "thats what they are designed to be at" ? lol i would laugh to see ANY manufacturer recommend a 95% fan hahah damn, i never go over 80%, and my cards run 50°
I have a few 280x with fans @ 100% since day 1 (2015) and they still run like new ones, seriously.