In the early days of computers, there weren't many computer components that used large heat sink . With the increasing power of computers and prevalence of overclocking among computer players, modern computers have increasingly high requirements for the heat sink of important components. Methods of heat-dissipating are various , basically divide d into air cooling, chip heat sink , water cooled plate and so on. The commonly used one--- air cooling, in fact, is heat sink fins with good thermal conductivity tightly against the larger chip . A bove the heat sink there is a small fan. In this way, the airflow generated by the high-speed rotation of the fan takes the heat away from the fins. P ay attention to these points when choose air cooling: R egardless of the material problem, I believe there are still many people think that , the larger the size of the heat sink is , the better the heat dissipation effect can play. In fact, the quality of heat sink has n