CPU air cooler runs ice-cold water through its heatpipes to liquid-cool a GPU — negative-temp DIY mod sees up to 17% performance uplift

Watch as a crazed modder grinds down the heatpipes of an excellent air cooler, then injects ice-cold water through them with retrofitted tubes, and finally puts the entire apparatus on two GPUs to see how far he can push performance, witnessing massive clock-speed uplifts across the board.