Mineral Oil Cooled Computer 2

No not at all. I just did that because i wanted to keep the temps down more is all. Just make sure you get a high quality motherboard as mineral oil is mildly corrossive and will eat away rubber seals of the capacitors on the cheap motherboards.

You honestly dont even need a radiator unless you want to keep things down or do 12 hour sessions of video gaming, etc. It will run fine without one though.

would i need to do that to make the computer run properly submerged.

You would need to reconstruct the tempature circuit with a reprogramable chip to tie into the sensor on the fan. This will allow you to set your own custom tempatures for the sensor which would then increase the voltage you determine to be sent to the fan thus increasing its speed.

so these oil cooled computers seem interesting and i was thinkng about making one myself and was wondering how i would reprogram the tempature and if i would to change the fan speed ect.

Thanks. Ill have a couple more coming out soon if i can find the time and money to do them.

very nice man keep it up!