First of all let me congratulate you on building a stunning looking card, on the other hand I don't know under what rock EVGA found there software programmers that designed the EVGA Precision XOC software but it would be better if they go back to that rock.
I bought the 1080 Ti FTW3 and have endless crap with the software and the fan control, when ever the EVGA Precision XOC program closes it stops the fans and there is no way in hell that is normal or save that if program stops the fans should stop as well. I also saw endless questions from other people that have the same card and same problems and yet the last software update was done on version 6.2.3 Release: 11/8/2017, which tells me this is not really a priority for them to fix this issue.
Who had the great Idea in the first place that the fans should only be controlled by the EVGA Precision XOC, what will mean that the fans will stay off until windows boots up.
I don´t remember the card being cheap so I hope that you guys can come back with a solution.