I have a Dimension 4550 2.66 Ghz computer that is making really loud noises when playing games. The fan is already kind of loud to begin with, but the second I start to play games, the fan goes crazy. It spins really fast and loud, and hot air would start to come out. If I exit from the game right after loading it, the fan does not slow down, it keeps spinning at high speed. Even when I try restarting the computer, it would still be spinning like crazy, and the only way for me to get it back to normal speed is to shutdown and turn the computer back on. Is this something normal?