High performance of modernprocessors are provided with efficient heat removal from the working area using active and passive cooling systems. In addition to the cooler, the smoothness of the surface on the built-in heatsink (IHS) affects the heat dissipation process. An enthusiast from Sweden, Simon Penrow, contributor to the Penrowe YouTube channel, decided to use hand sanding to increase the contact surface on the IHS Ryzen 9 3950X lid. It took him about six months to achieve the goal.
The CPU cooling principle is based onusing the IHS cover, which performs a double task: protecting the microcircuit from mechanical damage and removing heat from the central processor crystal with further heat removal by an air or water cooling system.
However, the IHS surface is imperfect, and forTo eliminate existing defects, thermal paste is used - a conductive material that fills in all microscopic chips and cracks in the IHS and heatsink to facilitate better heat transfer. To create a perfectly flat surface and ensure maximum flush fit, Penrow began sanding the IHS cover.
In the course of long-term work, the enthusiast useda lapping surface of his own manufacture, which, he said, was softer than the metal being processed, covering the processor. The result is "the world's smoothest processor with flatness accuracy within 0.3 microns."
However, the enthusiast does not provide any data withusing the processor temperature graph to confirm the effect of your 6-month experiment. Moreover, he stated that he had already sold the processor. Perhaps the buyer of the "smoothest CPU" in the future will share statistics and comment on the possibility of abandoning thermal paste with the ideal smoothness of the IHS lid.