Quote from: cheet on May 15, 2017, 12:49:11 AM

Quote from: arielbit on May 15, 2017, 12:36:10 AM

Quote from: cheet on May 12, 2017, 01:52:04 AM

Hi guys hoping to get some feedback on my room plan:

https://i.gyazo.com/d73e124bf0a2ce32e0198c927a095e8f.png

#1 is my current plan: pull cold air in from the window and push them over rigs with fans behind each rig, then pull hot air out from the front of the rigs and use an exhaust fan in the ceiling to collect hot air and exhaust it out of the roof. This should be sufficient cooling for about the ~105 GPUs I can fit on that shelving unit

HOWEVER! I would like to leave open the possibility of expanding in the future without having to move the exhaust fan's ceiling location. So I was wondering if #2 would work if I double my size. As you can see I'd be using fans on the ground to push the incoming air up at all the rigs but I'm unsure if that 15 ft (4.5m) is too much distance to hope to carry the air.

Fwiw, I'm dealing with 75-85 Fahrenheit (24-29c) ambient temps

Any thoughts would be appreciated!

there is a danger of pulling rain water too aside of cool air from the window/s since the fans are giving them extra push.

Yeah that is a concern for me. However I have the window screen still on so that should help.

It's a risk, up to you to assess how small or large. GFCI the circuit that serves the room, maybe. Possibly just as easy as a single electrical outlet changeout, don't remember for sure. You seem to like Home Depot, so http://www.homedepot.com/p/Leviton-20-Amp-125-Volt-AFCI-GFCI-Dual-Function-Outlet-White-AGTR2-W/300049855. $26, and a decent industrial grade outlet has to be what, 4-5 bucks tops now, my WAG? I definitely regret all the ones I've replaced with dollar ones now, just because of house cleaners yanking vacuum cleaner cords out the easy way.