I have a better idea.
It's called RMClock and there's a free version. It allows you to undervolt the processor. If the laptop is from any time in the last 5 years it should work.
Most processors have idling technology built in to them, so that if you aren't doing anything taxing on the processor, it'll run slower to reduce energy consumption. It's especially useful in laptops to extend battery life. But it's not used as well as it could be.
If you use RMClock, you will often find you can run a laptop at a lower power setting than it needs. For instance, on my Acer, default voltage of the C2D chip in it was 1.3V for when it was running at maximum speed. With RMClock, I was able to run it at 1.125V. In terms of temperature, this brought it down under full load from 90 degrees C to just 60 degrees C. So it stopped powering off! Essentially, RMClock allows you to set the voltage level from a lower multiplier (and slower speed) to a higher multiplier.
To do this properly you'll need to run some stability tests like Prime95 or OCCT and test both max and min multipliers and then some of the ones in between so it doesn't reboot. If you've ever overclocked a processor, it's the same theory of more power gives more stability at faster speed but done the other way around so it's same speed with less power (and therefore heat)
Hope this made vague sense. I've been using it for years on a few laptops and run them 24/7 under 100% load running BOINC applications.
