After using the computer for a period of time, the temperature of the CPU can easily soar to more than 90 degrees Celsius, and then an alarm will sound and remind you that the CPU temperature is too high. This is your computer protesting with its life! So brothers, hurry up and arrange thermal grease for it!

First of all, let’s understand what is thermal conductive silicone grease?

Thermally conductive silicone grease is a high thermal conductivity insulating silicone material with thermal conductivity. To put it simply and crudely, it is something that can dissipate heat.

Let’s understand the principle of heat dissipation again.

The contact surface between the CPU and the heat sink looks smooth to the naked eye, but in fact there are many tiny pits at the microscopic level, and the air between the pits is a poor conductor of heat.

The role of silicone grease is to fill these pits, and use its own thermal conductivity to conduct the heat of the CPU.

So how to apply silicone grease?

First, ensure that the bonding surface is clean and free from water vapor or dust;

Second, fully stir the thermal conductive silicone grease, and then use a tool (usually a scraper will be given as a gift) to scrape it flat to prevent uneven thickness.

Be careful not to apply with your hands! ! !

How thick should the silicone grease be?

In theory, the thinner the better. Because the main function of silicone grease is to fill those gaps. After all, in terms of thermal conductivity, no matter how good silicone grease is, it is not as strong as metal materials such as copper and aluminum.

How often should silicone grease be replaced?

Silicone grease that has been used for a long time will dry out, and its performance will not be as good as before, so it can be replaced once every six months or a year. Silver-containing silicone grease is more durable, and it is also possible to change it every two years.

Recommended Thermal Grease

Honeywell 7950 Phase Change Thermal Conductor

Thermal conductivity: 8.5W/mk

Thermal resistance: 0.04℃cm2/W

Honeywell 7950 uses a phase change material, which is different from common liquid silicone grease. At normal temperature, the thermally conductive phase change material is solid, and when it reaches the temperature of phase change, it will become liquid, and the air in the pit will be discharged.

But the working principle is similar, and the heat conduction effect is very good, the disadvantage is that it is a little expensive.

Overclocking Three GT-3

Thermal conductivity: 12.8W/mk

Thermal resistance: 0.03℃cm2/W

GELID GC-Extreme

Thermal conductivity: 8.5W/mk

Overclocking Triple A1

Thermal conductivity: 7.5W/mk

Contains 25% pure silver, non-conductive

After reading this issue, go and apply thermal grease to your computer to reduce the temperature of the CPU! However, it should be clear that the CPU temperature is too high, and it may be caused by excessive CPU operation, high ambient temperature, excessive computer dust, etc. In addition to applying thermal conductive silicone grease, other aspects also need to be paid attention to.



Reviewing editor: Liu Qing

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