Quote Originally Posted by Yatta View Post
How about enclosing the servers in a closed cabinet and then make some piping/ducting work from another/remote AC unit?
As a matter of fact, this is the direction I'm considering. The cabinet already has a 4-inch PVC pipe going to the attic. A custom/fabricated mini "split-type" A/C will be ideal. Control is through a thermostat and/or home automation.

Quote Originally Posted by Vodka View Post
you got high ambient temps in the cabinet coz the CPUs/GPUs heat everything inside. so if you could watercool them then mount the radiators far away you'd drop the ambient temps inside the cabinet. you simply have to run 2 thin hoses. very neat. low power consumption too. i got lots of experience w/ watercooling from my overclocking days...
As it is, with the room A/C off (a 2.5HP inverter split) the living room and dining room are just a few degrees cooler than my IT cabinet. I'm looking at having the cabinet actively cooled with the heat expelled through a condenser installed in the attic. That way, I don't inadvertently warm up my home and tax the existing room A/C.

I have three (3) servers now with the possibility to add more in the future. Is there a liquid cooling solution that can pool all servers' plumbing into one big radiator? I don't want three or more sets of hoses going in and out along with three radiators outside.

Quote Originally Posted by Lew_Alcindor View Post
If I were you, I will try the simplest solution first - that is try to suck air out of that box. moving air has a cooling effect. install an exhaust fan to suck out hot air.
This is plan B. If it can be helped, I would like to dump the hot air outside the house (or to the attic). But not through ventilation. Doing so will create negative pressure inside the house and reduce the effectiveness of my existing room A/C.