why do you want to do this?
do you desire a monster over-clock?
is the fan too loud?
Just curious as to your reasons why.
Some where on site there is a thread where a guy did one in a fishtank of coolant. but the coolant must be pumped out of the tank and into a radiator to cool it.
Mineral oil seems like it could be a good alternative to the Noctua NF-F12 industrialPPC-3000 PWM Fan I've been using for reaching 1300 gh/s because it offers the same if not better capacity for overclocking with much lower noise levels (even though the Noctua fan is pretty quiet compared to the stock fan) and hopefully ridiculously good temperatures. I understand that I'd probably still need fans for a radiator, but they wouldn't need to be as powerful and loud as the Noctua since dissipation of heat would occur in both the tank and the radiator, right?
Your looking the wrong way. Get a C1 and an S5 if for some reason you cannot use the fan's. Mineral oil just seems like chances are a lot of work and I doubt it's made for it.
If you want silent look at Avalon 4.1's used. They are VERY VERY quiet.
Thanks for your recommendation, for some reason I overlooked that miner when I was looking for something to get into mining with. My miner is located at home in a room fairly close to my computer and runs at 375M. I can just barely hear it when I walk by; temperatures are my main concern. I've read here that optimum temperatures for the S5 are around the 50's to the mid-sixties (Celsius of course). It runs at about 64c on one board and 68c on the other, with the peak for both being about 71c. It's been a week since I posted this and forgot about it and considering the responses I've gotten, it doesn't seem as clear-cut as it used to. I'll definitely look into liquid cooling a bit more, though.