How does that get rid of that annoying coil whine? According to my knowledge it's got nothing to do with the cooling, it's an issue with the power delivery system. In my case it renders the cards completely unusable, unless you're deaf. If I won't be able to return the cards, does it qualify for an RMA procedure, i.e will the warranty cover it and declare it's a defect or do they have any safeguards against returning cards with deafening coil whines? In hindsight I overestimated the importance of voltage control, the default voltage of 1.168V is already very high as evidenced by the fact that I can reduce it to 1.05V at stock clocks, and increasing the voltage past the stock voltage does not allow for more then a few MHz on the core(the gain's under 50MHz, totally not worth it)