There is an immediate connection between CPU power consumption and VRM heating. The more the processor consumes, the greater the load on the power circuits, and, therefore, the more they heat up. MOSFETs create a lot of warmth during activity. Therefore, passive cooling is installed on them as a radiator to abstain from overheating and unstable operation. Therefore, passive cooling is installed on them in the form of a radiator to avoid overheating, failure, and unstable operation.