[Thermaltake View 31 not compatible with ASUS board, Maximus Z390]

Hey I figured this would help, I looked up users that had cases that work and went to measure the opening physically. 

The measurements to fit are 6 7/16 inches (long side) 1 3/4 inches for shorter side and you will be fine

FYI I had the view 37 which is the same as the View 31 but with RGB lights and I had the same problem with the hero xi motherboard, I have a View 71 and it fits see photos to see all holes line, I do not have to put any force to make them line up