Why can't I throttle down to 0%

[fred]

The lowest setting is 1%, even if you put in less, TThrottle only goes as low as 1%.

Why? Because otherwise programs may not get enough time to run. As most programs are not tested for this, because Windows will always allow programs to run a minimum amount of time.

If a program would be stopped for some time, it may become instable, unpredictable and even crash.

And if at 1% the CPU or GPU still gets too hot  , something else is wrong..

And you can always set the automatic shutdown at the maximum temperature, so the system shuts down gracefully, in the event of overheating