just registered so I could post this useful info for anyone else that just wanted to get 120hz on their Lenovo Y500. I was just about to do this bios unlock which seemed pretty daunting, but then I found this: You guys know you can overclock the lcd Once you create the custom resolution 1920x1080 / 120hz, don't forget to actually select it after you save it. Just as simple as that. And YES I see a SIGNIFICANT difference. I play LOTS of counterstrike: global offensive (CS:go) and have played countless hours of the older CS's... I'm not sure if it makes a difference, but for CS I think you may need to put "-freq 120" or "-hz 120" to force the game to run at that refreshrate. Even in windows you can tell a big difference by dragging a file or folder back and forth quickly.