Heat grease or silicone paste is used to transfer heat from the heat source to the heat transfer part. The way these pastes work is that they are placed between the heat generator and the transfer part. The doughy state of this material causes the air between the two pieces to disappear and there is no obstacle to heat transfer.
The job of silicone paste is to remove air and barriers to heat transfer from the heat generating part to the heat part. The most common use of silicone paste is to place it between the processor and the heatsink to facilitate heat transfer from the processor to the heatsink. These processors can be computer CPUs or graphics card GPUs.
Expensive laptops with powerful processors and graphics cards have the right silicone paste, but after a few years, the paste loses its effectiveness and becomes solid and dry. If these laptops are not serviced in time and their silicone paste is not replaced, the processors may overheat and damage the laptop components.
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The job of silicon paste, as mentioned, is to transfer heat from the processors to the heatsink. Using silicone paste, heat can be transferred from the CPU to the heat sink between 10 and 20 ° C. The lower the temperature of computer processors, the better the performance, and the lower the temperature, the better they can handle heavy processing. For this reason, special methods of heat transfer from processors to heat components must be used.
The silicone paste works in such a way that it is placed on the smooth surface of the processor. Due to the fact that the top and smooth surface of the processors are made of metal, they have grooves and microscopic cuts. These grooves are where the air is located, and as you know, air is not a conductor of heat transfer, and if air is placed between the processor and the heatsink, it will heat the processor.
The job of silicone paste is to fill these grooves and prevent air from accumulating between the processor and the heatsink. This easily transfers heat from the processor to the heatsink, cooling the processor.