Quote from: NateDoggETH on April 30, 2018, 04:38:36 PM

Quote from: gotminer on April 30, 2018, 03:18:06 AM

So here is what I currently have going on ...

31 GPU's ranging from 1070ti's to 1080ti's ... Six of them are XFX Vega 56 blower cards. According to fan specs, we're doing 3100ish cfm on intake and exhaust in a room that is 1680 cubic feet. There is another window in that room that I could put another intake fan in, not sure about that yet. If I do that, I assume I'm going to need to put in another exhaust fan. All rigs other than the vega blower card rig have a box fan behind them.

I'm wondering if I should move the shelving unit a little closer to the exhaust, so the heat is sucked directly upwards, but the box fans are pushing hot air off of the cards in a forward motion. Not sure how much.

Currently the room is around 7-8 degrees above the outdoor temp. Without the exhaust fan (and with the intake and box fans), it was 15-18 degrees above the outdoor temp, so it has certainly made a big difference.

Temps here are going to be heating up, so we will see what happens. The next step in this project is venting all the way outside rather than into the attic.

If anyone has any suggestions on gable vents or roof vents that have fittings for a large diameter hose, please let me know.

That room looks sexy just like the OP mining set up.

If I had this set up, I would have the 2 windows with exhaust fans (attic gables fans) sucking hot air outside on boths windows and I would put that shelf with all the rigs on it right in front of it. So it would go like Cool Air--Rigs--Attics gable Fans sucking the hot air out.

I would keep the ceiling exhaust fan also just to make sure that there isn't any trapped hot air anywhere. You can never have to much exhaust. Just make sure you have a source for fresh air (does not have to be AC air but needs to be fresh)

That window fan can be used for for exhaust. Just have to turn the knob on it to one of the exhaust settings. I looked at attic gable fans, but I like that this one is made for a window. Problem with using it as exhaust is I have no other source for intake, if I do that.