Ok so i was playing Mass Effect for a while and decided to turn off my 360 for a bit. When I turned it back on it started making this buzzing noise. I learned later that it was the fan that was making the noise. What i'm wondering is if i should use some kind of dust cleaner and spray the inside or something else. I'm not sure if its still under waranty, i've had it for 2-3 years so i'm guessing not.
