Graphics Card and Monitor

Hmm, that is odd what kind of noise how would you describe it?

how do u get 100 fps with v-sync on ?!!!

Well what he said was is he turns on vsync. He didn't specify when but my guess would be that he turns it on to avoid the sound. And you should be using Adaptive Vsync by the way with your 660Ti.

How do you do adaptive vsync?
I just got a 660 ti and I kinda want to try out the nvidia settings (like the stuff they advertised lol, you know fxaa and all that stuff)

I only get 100+fps when I turn v-sync off   I do run adaptive v-sync btw... The noise is like a hummm, like a fast-running computer fan.

I really enjoy my 660ti   I don't recommend fxaa though, it can make the game look blurry. I like to add my own AA injector called SweetFX which is as fast as Fxaa but as good looking as Msaa; download link http://www.guru3d.com/files_details/sweetfx_shader_suit... (at the bottom of the post, the post shows some pictures of how it looks and works)

Well Nvidia's tech is TXAA. You go through Nvidia 3D settings and then go to application and set the application you are wanting to set to Adaptive. By doing so you can turn off vsync in your in game settings and Nvidia will handle it on its own. Also I would think perhaps when your monitor is being stressed it probably cools itself to keep up with the frames you are putting out.