Curious to how this happened, I'm lead to presume that the Mineral oil inside the tank was actually cold enough on the surface to condense the water moisture in the air it came into contact with, thus forming on the surface and sinking to the bottom, might i propose 2 possible solutions?
Option 1, create an air tight tank, fill to the brim with mineral oil, then you will get a minimal, if any, layer of water forming at bottom of tank, no problem if mother board is slightly elevated, but down side could possible be if you are circulating your oil the smallest amounts of water, and probably not visible to the eye might be churned up there and cause some problems creating a small short, guess it would almost have to be in a vacuum for this to properly work, maybe install some air conditioning to lower the humidity
condensation would of course still be present on the pipes outside the air tight tank, and on the outside surface of the tank, but this is okay.
Option 2, hook up a phase change cooling system up to just your cpu, and then submerge you entire mobo back in the tank, the pipes for the phase change running into the tank and through the mineral oil, would not the cool the oil so much to cause condensation as before, this enables you to run the processor 24/7 at extremely cool temperature, and having it in the oil stop the mobo being a limiting factor, you could have the phase change hooked to the graphics card and ram also, but i doubt they would need it as the oil will more than enough cool them enough in tandem with the phase change cooling the cpu when over clocked, however if hooked up to these also, the oil would still be extremely beneficial at stopping multiple parts of the mobo being limiting factors of your 24/7 over clock system. And as for keeping the mineral oil cool, as the phase change doesn't work , to keep it at a cool but not freezing temperature so as that to condense water moisture, a simple pump and radiator or two could be used, or a lower power condenser of some kind. This is my favourite and most practical scenario.
I'de love to hear if anyone else has had any other similar idea's and actually put them into practise.
Funds are the only thing in my way.
Forgot to add, when installing the phase change heat sink, thermal paste will not work, use something like 'Indigo extreme', not super important, but many say capacitors would be blown, in which case it is a much safer bet to use ALL 'solid capacitors' , careful though some mobo's are advertised with 'solid capacitors' ONLY around the cpu socket. Any further questions on my potential project I would be happy to help Edited by Jgudgin - 11/28/12 at 5:14am