On the left side of the computer, there is a clicking noise that sounds like a fan isn't working right. Imagine one of those round fans on a stand that turns back and forth that makes a noise and that's what the noise sounds like. I've done some searching and most people say that it's usually the hard drive but if I use SMCFanControl to raise the fan speed, the noise gets faster, so I know it is definitely not the hard drive. I would just take it to an apple store but there is a dent on the back left corner so they might say it's my fault and won't do anything about it. What do you think? Is it worth my time to go to the store?