Reply #2: Not a new idea...

[lapfog_1]

immersion cooling has been around for more than 20 years.

Seymour Cray (the Cray II) used a product called Fluorinert (3M) to cool his second generation Supercomputer. Made for a neat "waterfall" display near the machine as the Fluorinert was circulated to a heat exchanger and a reservoir (which either was the aforementioned "waterfall" or a set of Plexiglas columns).

There have been many gamer hacks to do much the same thing with PCs.

The problems are:

Eddy currents that can create hot spots. Fluid flow around block obstacles (like a add on board or even a memory chip) can create a hot spot behind the blocking object.

PC testing and repair. either removing the PC from the bath or draining the container to service the device can be challenging, not to mention messy. If you frequently change things in your PC, this is a huge issue.

Uneven cooling. If you do not circulate the bath, you can have severe problems in areas like the CPU, all of which now depend on rapid heat dissipation to continue operating. If you do circulate the bath, you may need a heat exchanger or radiator (most likely with a fan) to effectively cool the liquid.

If you do try this with your home PC, do some research online first to see what other solutions are available and what has worked for other people.