[Video Guide] BIOS Tweaks To Reduce CPU Temperature
20This guide shows how to reduce CPU core voltage in BIOS to reduce temperature under load. I achieved -5 celsius just by changing BIOS settings.
CPU Core Voltage is how much voltage is required for CPU to run at a certain frequency. Different chips have different required voltage, so manufacturers, just to be safe, significantly increase it. As a result CPUs are stable, but hot.
Experimenting with core voltage in most cases will allow you to reduce it. Less voltage means less heat, and less heat means CPU can run at a higher frequency (without thermal throttling) or consume less power (useful for notebooks).
I use offset mode, it means that whatever default voltage is - a certain value will be subtracted. -0.075 volts is quite high, not every chip can achieve this, but some chips can achieve even more. This is called silicon lottery.
The strategy to finding the real required voltage for your CPU is to set something high (like -0.1 volts) and keep reducing it by -0.0125 volts until you are able to boot into windows. Then use a memory stability test (like Prime95) to see if you have errors. Keep reducing offset until Prime95 shows no errors.
And don't forget to enable Cool and Quiet, as it reduces CPU frequency and voltage when its idle.