thx u very much .
it's worked ,but the effect is not obvious. When I only use two cores, the temperature of the mac does drop but it is still hot. At the same time, I show in the fusion that my mac has 8 cores.
i thought that's this model bad heat dissipation , but improved my fan speed to 7200rpm (max rpm and only one fan ) the surface temperature of mac still heart and cpu core average always 176 οF - 195 οF .
