[airspirit]

He can't use 10 computers on that one rad. He would need three, since you can only pump 4 machines through each, and that is with hellacious bypass. That radiator, though, is the only way for him to go, unless he goes with one of the larger lytrons with 5/8-3/4" channel width, and even then he would need two. No standard computer radiator can begin to handle that heat load, even in arrays of 5 or more.

See my article on multiplexing a watercooler (on the front page of procooling). You'll see that I already needed a bypass for TWO computers.

With 6ft of headroom, unless you went with a commercial evaporator (if you could afford that you could afford a cray), bong cooling is impossible. End of story.

You COULD, if you used enough fans, do it with three of those Lytrons combined with about 2200 CFM of air across them (Comair Rotron Caravel x4). The cooling box you would construct would measure about 4ft high by 3ft wide (think a medium sized fridge) by about 2 ft deep (shrouding for the four fans). You would need a large res (similar to what I built to feed the pump without collapsing your system) with the three radiators coming off in parallel from it, also keeping a bypass line (1.5-2") available so you don't collapse your lines from the radiators. I would recommend using that pump in this setup due to the intense resistance you will encounter. Your bypass will probably be open about 60% at 1.5", and you will be limited to 3/8" lines through each PC.

Does that help? You'll know what I mean when you read the article. My box I constructed will be capable of four PCs, and is currently running two beautifully. If I put on a fifth, by my calculations, I wouldn't be able to adequately cool the water since my bypass would need to open 100% to provide flow, and my CPUs would burn anyway.

Parallel Radiator cooling is the only way you can go without SEVERE cooling like vortex or massive phase change arrays.