Quote from: shater on December 15, 2018, 03:24:53 AM

Quote from: dagarair on December 14, 2018, 04:08:26 PM

Quote from: whitesites on December 14, 2018, 03:59:56 PM

If you want to maximize your GPU's life, and hash rates of your cards, build an open air rack. My 8 GPU racks have at least 2 inches of spacing between the cards. in that case the cards are going to be right next to each other meaning each card is going to be sucking in the heat from the neighboring card. The result is once the system warms up. all your cards will be hitting max Temps, and hash rates will drop as the card try to keep temps under control. With something like that you would have to use blower style cards and they don't cool as well or hash as fast as traditional cards.

If you want to be serious about this. Build open air rigs, and keep them at floor level where the cooler air is.

Boy you are totally wrong. I have over 700 machines and at first I thought like you. Testing and research tells you the exact opposite. Forcing air through at a rapid rate with enclosed units will cool the card. I have both still but only like 40-50 open air left to convert. Temp on enclosed rigs are normally 10C cooler IF THE FANS ARE GOOD.

Also on the ground is incorrect, they need to be about 2 ft above ground for optimal cooling. The reason is at ground level the rotating air (vortex) is present. At a level higher that is eliminated.

This looks nice but I hope those fans are fast. Honestly I like Octominer solution best with fans on both entry and exit.

Agreed, the enclosed casing forces air to ram through the GPU. Surprisingly, enclosed case like this got much better cooling performance than open-air rigs.

Absolutely right. It's astonishing what a set of Nidec or Delta fans in a case like this will cool, even at high ambient. Tight spacing is important in forced air rigs - your highest temps will be on the ends where there's a gap. Kinda counter-intuitive...