Quote:
Originally Posted by DuckieHo

Fans should NOT go into the oil. The greatly increased viscosity will burn them out.
Just so you know, oil cooling a PC is only for looks. There is little to no benefit in terms of cooling. Oil based cooling is generally for systems that deal with extremely high temperatures or high heat loads.
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Fans will have a higher resistance in the oil. (Physical resistance translates to electrical resistance.) As long as you don't force them to torque like crazy (by high fan voltage adjustment) they should be fine afaik. However, if you
do try to use high fan settings, you can probably burn the fans out eventually. Avoid using automatic fan control, obviously. The fans help to circulate the oil thru the heat sinks.
As far as benefits go, it gets pretty expensive to cool with oil, but you can have a performance computer whose heat exchanger is in another room, and the system runs SILENTLY. Just dunking it in oil is pretty pointless without some sort of external heat exchanger. I would actually like to implement a geothermal temperature regulator.
Just bury a length of pipe in the ground, circulate oil thru it, to and from your computers.
Cooling lines!
Oil-cooled systems obviously get pretty heavy, and should generally be considered as hazardous (unless you don't mind the idea of gallons of oil pouring onto your floor). They are not very portable, and should be temporarily mounted in place (IMO) to prevent spillage. Setup and accidents can be/are extremely messy.