I have an ASRock Z170 Extreme board sitting in a Thermaltake MSI case.... worse case ever! The problem is the CPU base on the board doesn't sit directly over the spacing in the back of the case. With the CPU fan back mount I am practically touching the case, which to me would potentially short and damage the board. Will this be ok, or do I need to make the opening bigger with an angle grinder (not preferred at all). Images attached for reference, really appreciate any feedback, thanks!