Hi,

I have about 104 cards (Most are AMD, only 13 are Nvidia) and 9 ASICs running in a small bedroom.. i had the below setup working for over 6 months without any issues.. other than some neighbors complaining about the fan noise which was about 55 db..

Temps on AMD is much higher than those on Nvidia so solutions needs to be different.. I live in Florida where external temp in summer range 90F to 110F

I had a very simple setup.. using an air filter to let fresh are in on one side (No fans) and on the exhaust side  used 2 of these " MaxxAir Pro 24 in. Industrial Heavy Duty, 2-Speed, Multi-Purpose PRO Tilt Drum Fan"

Intake area should be the lowest possible and exhaust should be at the highest point possible..
also made sure that intake for all GPU, power supply and ASICs where pointing the right direction..

I had to take the setup down last week to see if i could move it to the garage or the back of the house.. Running ACs is just not an option for me as the price to install and run them will make the entire setup non profitable.. it hardly making any money at the moment as is ..

for now, i am experimenting with changing stock coolers to ARCTIC Accelero Xtreme IV.. i will also space the cards at least 8 inch from each others..