2 x MSI (https://www.newegg.com/Product/Product.aspx?Item=9SIA2W06V14017&cm_re=1080ti-_-14-137-113-_-Product) and they aren't too too close...but the backplates get super hot.
I was hoping there would be a case out there that would have some sort of GPU "airflow compartment" similar to how many cases have a whole compartment for the power supply. I'm still looking.
And I do have to keep the cards running at around 80% power and 72 degrees but I want them to be running full force to get the full affect. Or does it even matter? Will I be able to hash more with more power running to them full time? One would think....