I have a severe issue with my cooling system.
I have 50+ GPU in a room mining 24/7. They're all GTX 1070/1070ti and right now their average temperature is 84°C and their fans are spinning between 50 and 80%. In front of evey GPU I placed a 12cm fan but it's so damn clear that the real problem is that I am unable to dissipate heat. The room is hot as hell and the passive ventilation is not enough to cool the room. I prepared an awesome image with my paint skills that says everything
http://dev.revhosting.org/bit/airflow.pngHere is my question. I don't fu**ing know how to configure the holes/windows I have. I tried with few setups and I got even hotter temperatures. Keep in mind that I have enough fans for all holes in questions. I'd like to avoid conditioned air solutions. What do you suggest?