i have no air con rigs draw air from the window ( between 10c and 27c ) the room temp is 5c warmer than the input temp even at 27c the cards dont go over 60c core 80c vrm at 55% the only other fans on the cards are 3 1.2w 120mm fans here is a link to picks of my test rig that rig is in a 5l box all others will be in 64 l boxes ( cant fit more than 3 cards in the 50l and still put the lid on lol )
https://bitcointalk.org/index.php?topic=223128.msg2349291#msg2349291i am looking for a room that could supply 10-20kw to my rigs
that should be good enough for 10-20 7970x4 rigs
but that is too hard to find because the rental is to expensive
in the uk you can do all the wireing your self and a electrition has to do the final conection it cost me 800 gbp to get 8 20a ringmains