I havent tryed this yet, but im certain it will work.

1. Locate tank (such as fish tank, or plexi glas) larg enough to contain your MB, and Cards, and Power supply, but not mechanical parts (you wont need the fans if i pull this off).

2. apropreate cable extensions for all you ports, connectors ect. that will reach to a "lid" for the tank, tankmust be deep enough to compleatly "submerge" equipment.

3. place the system in the tank and fill with transformer oil (non conductive, and extemly heat tolerant), heat sinks problay not required.

4. attach mecahnigal parts (drives) to the connectors taht were riged up on the lid.

5. go.

should be capapbe of keeping the entire system at sub zero tempatures (-40 easy) if you add a pump and a radiator(with apropreate cooling) to system.