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fan speed controller CPU cool software principle is that the CPU idle time
CPU cool software principle is that the CPU idle time, automatically reduce the frequency of CPU, thus reducing the calorific value, in general CPU cool cool software to 3-5 degrees or so

Cool software can use HLT instruction to let the CPU into "sleep" state, should be able to reduce the CPU temperature using them, the author has also specially around the cool under the operating system to try the software, the software detected can indeed make the CPU temperature drop 3 degrees or so, but we must not to point at this time to take plane that cool software can work in any environment can effectively reduce the CPU temperature.Because the author later under Win98 operating system, using the same cool software, found that the temperature of the CPU in the spare time was not significantly reduced, sometimes slightly instead of temperature on the high side, it is how to return a responsibility?It turns out that similar Win98, operating system and WinXP Win2000, itself has the function of cool software, in terms of the CPU cooling link has been enhanced, can let the CPU is idle automatic cooling;If we at this point in the operating system is running in the other cooling process, the excessive automatic cooling process will interfere with each other, cause system can't call HLT instruction to control the CPU to sleep, which would destroy the cooling effect of the operating system itself, even lead to system in the use of the CPU temperature rises sharply after cool software.The idea that the use of cool software must, therefore, can reduce the CPU temperature display is not correct.

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