So I bought a new Acer 1440p 60hz IPS monitor about 6 months back. Its working like charm and I'm very happy with the performance. However, I came to know just recently that even monitors can be overclocked. So I viewed a few videos on how to do so on Nvidia cards and have managed to achieve a stable 75hz refresh rate very easily. Its been 4 days now since I'm running it at 75hz without any issue, and am enjoying the even smoother gameplays at 75 frames per second. But officially the monitor states that it is not overclockable. So my question is whether its safe to overclock it, or should I return to base clock. Will it harm my monitor's lifespan, or will it void my warranty? Can a 15hz of overclocking really hurt bad?