Well, this may be off topic a little bit, but it works pretty well.
I OC the shit out of my machines, an run liquid cooling. The fans for the radiator/heat exchanger tend to be loud as shit. I took my case apart and sprayed it with the rubber undercoating for cars and it dropped the noise noticeably. It probably retains a bit more heat this way, but I have spare cooling capacity so....
Anyway I hope this helps someone.
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