Markus Leonhardt has taken the shortest route possible to liquid cooling.
throw motherboard in fish tank
cover in vegetable oil
there is no step 3
Markus has been using this system for over a year. it is quiet and is cooled by the still functional fans circulating the oil. he has swapped components and even successfully used pulled hardware in other pcs. the pages are in the process of being translated to english, but the english forum is already up with links to other projects. I’ve got some extra hardware and fish tanks are cheap, so I’ll give this a try some time. I doubt my roommate will feel this is an improvement over my plan of just nailing the motherboards to the wall.