According to CoreDuoTemp, my Macbook 1.83 GHz Core Duo CPU runs either at 1.83 GHz (load) or 1.5 GHz (idle). Windows and Linux are able to throttle the CPU down to 1 GHz when idle, saving battery power and reducing the enormous heat. Why doesn't OSX do that? Is CoreDuoTemp accurate? How can I make OSX throttle it to 1 GHz?