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How to use CPU thermal conductive silicone grease?

2021-04-02

How to use CPU thermal conductive silicone grease?

Thermal conductive silicone grease, also known as a thermal paste or thermal paste, etc., can be applied to the heat transfer link between CPU and heat sink, with thermal conductive medium, increase the contact area, cushion vibration, fill heat dissipation, and other application roles, but the use of thermal conductive silicone grease to achieve the use of the effect, the key is to master the product's operating specifications and requirements, and now we will introduce how to use the CPU thermal conductive silicone grease well.

Operation steps

1, first apply the appropriate amount of thermal grease on the CPU, this time you can not care about its uniformity, coverage, and thickness.

2Prepare a soft and hard plastic scraper (or cardboard), spread the thermal grease, and scrape it in one direction at an angle of about 45 degrees so that the thermal grease can form a thin layer evenly on the whole CPU surface.

3, will be a small amount of thermal grease applied to the bottom of the heatsink, the same use we just coated the CPU method, the thermal grease coated into an area as large as the corresponding CPU shell, the purpose of this step is to make the particles in the thermal grease fill the bottom of the heatsink uneven pits and grooves flat, then you can install the heatsink on top of the CPU, fasten the buckle can be.

Also, some users, for convenience, squeeze a little thermal grease on the surface of the processor, after using the heat sink buckle, using the pressure of the heat sink to squeeze the thermal grease evenly, this method is a relatively lazy approach, such a method may appear thermal grease overflow, mainly because of the application of too much. And it is also difficult to squeeze the force of thermal conductive silicone grease evenly, resulting in the uneven spread of thermal conductive silicone grease and even local lack of glue, so pay attention to such sizing methods.

Caution

1The main function of thermal grease is to fill the gap between CPU and heat sink, not the thicker it is applied, the better it is. The thicker it is, the worse the thermal conductivity will be, and bubbles will easily appear to affect the thermal performance.

2, the coating should be even. For ordinary heat sink bottom, the thickness of the thermal grease is about the thickness of a piece of paper. After the thermal grease is applied to the cooler on the CPU, at this point can only be light pressure, can not turn or pan the cooler, otherwise, it may lead to uneven thickness of thermal grease between the cooler and the CPU.