Glaswegian Computing.

I'm currently looking into options for an unpowered and silent yet efficient cooling system for a mid-to-high end gaming rig.
At first, I looked into heatpipes and/or thermosyphon based designs, but I recently stumbled on an old experiment, and it got me thinking.

Yes, at the uncanny crossroads of Scottish cuisine and Xtr3m3 nerdiness, people figured deep-fried computing was an operating concept, provided the tub is see-through.
Seriously, follow the link, I'll wait…

The quick and dirty cooking-oil-in-a-tub proven surprisingly solid, especially on the noise reduction end of things, which is kind of a big deal for me.
I also like the elegant simplicity of a pure convection liquid cooling system with zero pumps or extra power requirements.

The main limitations of the oil-immersion model (besides the yuck factor when adding extra RAM) seem to be the potentially harmful capacitance and corrosive characteristics of cooking oil, but provided a similar fluid without those drawbacks can be substituted, this approach has real potential.
Oil-like liquids, despite being less thermally efficient, are especially attractive as they don't evaporate as easily, which fits the general less is more angle I'm going for.

It would seem practical enough to build a kit based on a ready-made durable container, where the motherboard and PSU would be placed near the bottom, while everything that needs to remain easily user accessible such as drives and I/O connectors could be installed above 'sea level'.
Some passive funnels could also be mounted inside the cooling pool to boost the convection cycle.

Provided the side walls of the containers were made of acceptably transparent material, plexiglass style, and that two or more (non-soluble with each other) fluids of different densities could be found (that fit the conductive/capacitance/corrosion bill), a 3GHz lava-lamp becomes a distinct possibility.

Obviously the one big technical bump is finding the right fluid(s).

Any ideas ?

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