So I've brought my MBP in 3 or 4 times now due to the noises it has been making. There is this really high pitched whining noise coming from the left side of the keyboard. I brought it into the apple store once and they said they would replace the logic board. I got it back and it seemed to go away for a couple months but now it is back again. They said there's not much more that they can do to help so maybe one of you will know what to do.