July 23, 2011

Heat Sink Definition in a cpu


Heat Sink Definition In a cpu is a device that allows the lowering of the temperature of components that give off heat like the transistor or processors, preventing overheating of the same cause it to malfunction, shutdown or failure.

The materials used are copper and aluminum, the first is used in cases where it should be the maximum efficiency in heat transfer, accepting the higher cost and higher specific weight, aluminum is chosen for less demanding operating conditions. Heat Sink Definition for All CPUs have them because of the heat generated. It is usually shaped toroidal blades configured to increase the efficiency in heat dissipation, is coupled to a fan powered by a small electric motor (connected directly to the motherboard) that provides a flow of ventilation air. There are many other forms, conformed according to the components that have to pluged, in some cases, mainly bulky equipment evolving much heat, are part of the carrier frame. When you need extreme performance and small footprint, we adopt the solution called "ventilation", as in the case of CPU or electronic instrumentation.

Particular attention should be paid to the coupling between the mechanical device that generates heat and the heat sink, for maximum efficiency, is interposed between two surfaces in contact, thermal paste, which functions as a completely eliminate the veil of air inevitably present, being the itself a poor thermal conductor, would limit the efficiency.

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