It is best to change the processor in your computer or just the cooling system by using the services of a service center. In the event that you decide to do it yourself, the question inevitably becomes about the correct application of thermal paste, which is necessary to ensure sufficient contact between the surface of the processor and the heatsink. At the same time, it is important that the thermal paste is not a lot, and not a little, and its distribution is uniform.
The method of applying thermal paste may differ in that it can be liquid or thick, organosilicon or with the addition of metals and crystals. The question of choosing a thermal paste in itself can occupy a separate topic for an article. Cooling systems often come with their own thermal paste in a bag or in a tube, then the question of choice disappears by itself.
The main goal is to distribute the thermal grease evenly over the entire surface when installing the cooling system heatsink on top of the processor chip on the motherboard or video card. The thickness of the layer should be within half a millimeter, so that it is sufficient, and no excess is formed, which subsequently protrudes on the sides of the crystal or processor case. This should not be allowed, since thermal paste itself has less thermal conductivity than a heatsink, so a layer over 0.5 mm will only worsen the processor cooling process.
Applying liquid thermal paste
Liquid thermal paste is applied evenly to the entire upper surface of the processor or to the chip of the microcircuit, without going to the side edges or to the substrate. The layer should be thin and uniform, without grooves or bulges. Thermal paste is applied using a brush, which is most often attached to her tube. Any thermal paste is applied only to the cooled surface, and not to the radiator of the cooling system.
If the thermal paste is liquid enough, then it will quickly spread and equalize, after which you can place the radiator in place and click the fasteners.
It is important to remember that thermal grease can be conductive, so you should not allow it to get on the board and the elements of the strapping around the processor, microcircuit or elements on its substrate.
Application of thick thermal paste
Thick thermal paste can be found much more often. It is not necessary to distribute it over the cooling surface, because air pockets or places of its surplus or shortage are likely to form. For uniform application, it is enough to apply the required amount of thermal paste in the center of the cooling surface and carefully, lowering the radiator parallel to the surface, press it against the processor. As a result, the thermal paste will be distributed over the entire surface without missing spots and air pockets. If the thermal paste is too thick, then you should additionally press the radiator and slightly twist it along the axis from side to side.