Hi everyone, i just recently purchased an asus g750 laptop with windows 8. It's working great except for one problem. When i play games on it and sometimes media like youtube (although it's less common on youtube) my laptop emmits a strange buzzing/static like sound. It's not one continuous noise it's like a bzzzt,bzzzt,bzzzt sound and the screen itself tends to slow down as if it's lagging when this happens too. I've uninstalled and reinstalled my speaker drivers hoping that would help and i thought it did for about a day untill the problem came back. Just wanting to know what could possibly be the problem and what would be the best course of action to fix it. Again, it's mainly a problem that comes up when gaming.

Thanks for all your help.