try smos
simplemining.net
it is a free trial.
MSI afterburner software and gigabyte 1080tis suck
my guess is the gigabyte card combined with the msi card cause a conflict .
I would run this on smos and see what happens.
It was actually the MSI card that's the issue, not the Gigabyte. But I agree, that card and that software do not like each other very much.