KCPUCooler

Optimizing the energy consumption on a PC may not be a concern for many users, mainly because the modern computers have a lot of built-in methods of keeping the power usage to a minimum when the system is not being used.
On the other hand, keeping the PC cool while it is functioning is definitely one of the top priorities for regular users and hardware manufacturers as well because putting too much stress on the components will have a negative impact on both their performance and their lifespan.
Some years back, though, when things were not too evolved by todays standards, utilities like KCPUCooler were greatly appreciated. This was because with the help of such programs it was possible to tweak the processor and set its running parameters so as to obtain maximum efficiency with minimal efforts.
This particular tool is able to set the CPU in an idle state when it is not being used and thus keep the processor and also the whole system temperature at lower values. This translates in both a much lower energy consumption and also a longer lifespan for one of the most important components of the computer.
Since it is designed to function in the background and minimized in the system tray, KCPUCooler is also RAM friendly, as it takes up a mere couple of hundred kilobytes of memory when it is up and running.
As most users would probably find for themselves, an ideal usage scenario for this software would be on a portable platform because notebooks have a limited amount of power stored in their batteries and this utility can save some of that precious energy.
Another projected use for KCPUCooler is on PCs with overclocked processors, where the power usage and the temperatures are certainly higher than on normal systems.