I have a macbook aluminum 13' inch. I got my fan replaced recently as it was really noisy. now, its gone. however, my mac gets incredibly hot. the bottom part to be exact. i have fan control and smcfancontrol. tried to increase the speed and all. still hot. it would be so hot that my mac would shut off even. anyways. i downloaded i stat. my cpu is 78-80 heatsink a-b 65-75. AND my fans exhaust is 0rpm. does that mean my fan is broken?