Hi guys,
Didn't want to post a new thread but here's the situation I have:
I have some open-air 6 GPU rigs scattered all over my house I'd like to move in my 4m by 6m garage at 3m height (13 by 20 ft and 10ft height). For this to work I have to find a way to have larger rigs and stack them vertically and be able to cool the space without AC (at least during the night, because during the day it can get 40C/100F around here. I use nvidia 1070s in all rigs.
So first thing I tried is this:
https://www.dropbox.com/s/man1u53mh0va9y4/Photo%2014-03-2018%2C%2015%2015%2035.jpg?dl=0... a larger open air chassis with enough space to fit in around 40 GPUs right now with enough space for another 40 on the 2nd "floor". At the bottom I've placed 6 fans rated at about 200m^3/hour each (7000f^3). Result: some GPUs were ok at about 30-40C, others went all the way up to like 70C with outside temp at around 10C/50F, I suppose based on how them fans were blowing air from underneath. Needless to say I have to use compressed air to blow out all the dust from the cards after this little experiment.
Ditched this for the time being and now I'm trying:
https://www.dropbox.com/s/676b12qxaxcfzrp/Photo%2014-03-2018%2C%2015%2015%2045.jpg?dl=0https://www.dropbox.com/s/0iwo6n9ng6rgpl1/Photo%2014-03-2018%2C%2015%2015%2052.jpg?dl=0https://www.dropbox.com/s/rfq0gsbrhgvrbl7/Photo%2014-03-2018%2C%2015%2016%2004.jpg?dl=0I've designed this to hold up to 40 GPUs in each compartment. Those are regular 12V PC fans on the locker doors, and I had the same 200m^3 fans in those holes on the sides (4 of them). If I could get this to work I would move all GPUs in a few of these lockers and spend the summer in any other way than rebooting rigs. Unfortunately the results were awful, even with only 9-10 GPUs per compartment they were getting as hot as 65C / 150F.
I have not tried yet the weed tent nor the mineral oil bath, considering to give these a try as well.
Bottom line is I am getting frustrated and afraid I'll have to either turn it all off during the day for the entire summer, or switch to AC which will set me back some $. Would very much appreciate any feedback or suggestions.
Cheerios!