Hows the heat? I cant imagine that box fan is enough.. I need a humidifier im dealing with hot dry air.
Ambient for the room is ~50F, and most of the cards are between 55-65C. It's winter in New England, and there's a filtered box fan in the window to the right in the pic, behind the rigs. It's blowing 0-20F air into the room, and the cards are nice and cool!
We have 50kBTUs of AC ready to go, but we're holding off while we can, cuz a box fan is cheaper.

Nice RIG

Thanks!