I have a 17 inch MacBook Pro with Thunderbolt. Occasionally, it heats up and the fan has to kick on. This happens typically during heavy CPU utilization, but also seemingly randomly when doing mundane tasks.
If I could half the speed of my CPU, it would still be more than fast enough for most of my day to day tasks. Is there a way to reduce the CPU speed for the entire system? Will this minimize the heat related issues and prevent the fan from kicking on?