Oil PC (pool cooled)
March 24th 2009
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The cooling system has been an evolution from pumping oil through an air cooled radiator to evaporative cooling with a bong (something like this http://www.overclockers.com.au/techstuff/a_bong/) to peltier cooling (next to PSU) and finally to my 20,000L above ground pool pumping water to a heat exchanger (orange fans left of tank), peltier and home made CPU heat block. The Pugent system that inspired me is a bit misleading and makes it sound too simple. It is easy to cool a low end PC but a high end OC'ed to the max PC produces a lot more heat which is rather difficult to extract from oil. The pool cooling is great because it now makes the whole setup dead quiet, maintenance free and all the heat is transported out of my non-air-conditioned office. I did not have a large budget for this project and found it is more fun inventing and scrounging bits for free anyway. I am particularly proud of the CPU and peltier water blocks which i got for free from an electrician friend who had some broken brass solenoid valves. I lapped the base soldered a cap over the hole where the coil was and hey presto a water block. The peltier works well in this environment as you don't have any condensation to worry about. I still have a bit to do like add another fan on the heat exchanger to bring down the temp a couple more degrees. The oil temp is currently 2 C higher than the pool 23 C, ambient 15C - 25C.