Quiet

Most of the noise that one hears is from the fans in ones case. Remove case fans, chipset fans, motherboard fan, video and psu or anything else you have a fan on and your system is virtually silent except for optical and hard drive seek and writes. If you submerge your case or componants in a liquid the whole point is for the liquid to keep the componants cooler without the use of fans. Putting fans in the liquid would bog them down or if anything act as a propeller circulating the liquid wich in all would not be a bad idea but case fans or any kind of fan in your system does not have the power for that effect and would most likley burn out quickly.

But thinking a little most liquids heat to there surroundings so one is still not seperated from having a radiator as with basic water cooling of any kind. Yes submersing your whole case in liquid without the use of a heat disipator would work far better than a standard water cooling system with a radiator that contains a fraction of the liquid, but if you never turn your pc off that liquid your case is sitting in is going to slowly heat up to the tempurture of your componants. It may take a day or I dont know how long but the temp of the liquid will rise to the temp of your componants. I could be wrong but it makes sense in my head.

Just like in an air system or a water cooled system, you have to keep the hot "something", whether it be hot air or hot water, moving, to keep components cool. In a fully submerged system, the goal is often either to keep the liquid very cool via refridgeration, which requires a compressor and a radiator elsewhere to dissapate the heat, or a constant circulation of the water, keeping the fastest moving liquid nearest to the hottest parts.

Heat does not travel through most liquids as well as it does through aluminum or copper, which is why you have to do these things.

alright i wanna post this before i forget it. seperate the fridge into 2 parts. 1 small part for the computer (assuming it is completely and properly sealed of course) and a medium part for the food. then there is no need to turn off the fridge and its easier to clean and its less food you need to buy. or if your loaded just keep the fridge running 24/7

Welcome to the real world. Where we never turn our fridges off.

actually your submersed system is commonly used on super computers...... I've never seen it on home systems though....

Maybe this will be the dawn of a new error where well all have 'computer baths' on our desks and have to drop in cooler periodically to lower temperatures...you know, on the hand, buying a few more fans would be a lot simpler, maybe you could have an ice tray under a fan so the cool air would be sucked into the system...condensation may be an issue though. I am vaguely tempted to try this whole underwater pc thing though...got an old pc I could use . Would the fan on the CPU's heatsink burn out though, as well as other fans such as the ones on graphics cards, could be fun though

eh? is that sarcasim? if it is what is that supposed to mean! u turn off your fridge? god im confused. i quit. when i get it to work you can all be envious! MWAHAHHAHAHAHA!