that is such a load of horseshit. 90% of my gpus are below 60 C
Are we still talking about 1080 ti? Brief search at google.com will show that even with water cooling this gpu has 45-55 C. Countless reviews of 1080 ti also say that one gpu with Air cooling operates at 80-84 C. When it comes to farm, situation is even worse, because we hold all those gpus in close proximity to one another.
I try to keep my 1080Ti near 60-64 C. What is not difficult, just play with TDP (65-85). I'm the owner of a few Zotac tops (really beasts) + Zotac 2 fans + Gygabyte 3 fans.
BTW. Set all my cards to mine XLR at cryptohub, hope for coin raising