Inspiron 17R Graphics Card/GPU clicking noise

I recently bought a new Dell Inspiron 17R with a 2GB Nvidia GeForce GT 525M graphics card. Everything works fine, but whenever I play a video game a constant, very rapid clicking sound, almost a buzz, comes from somewhere inside the computer, similar to the sound made when loading something, but deeper and louder. Given that it only occurs when the laptop is running video games, I'm assuming it's something to do with the graphics. The frequency and loudness of the clicking is unchanged by what graphics setting the game is on. The noise immediately stops whenever the game is minimised, or if the game freezes for whatever reason, the noise will stop for the duration of the freeze.

Any idea what the problem could be, and if there are any solutions to it that don't involve sending it in to Dell? Also, apologies in advance if I'm unable to answer many technical questions: I know next to nothing about the technical side of computers.

Thanks in advance for your help.

 

My keyboard just stopped responding, and the laptop would not restart or even turn off until I manually removed the battery. I'll send it in to Dell, ignore this thread.