Thermal grease on the CPU and heat sink competition
Thermal grease, as its main function is known to be heat dissipation, is to improve the temperature conduction between the CPU and the heat sink, and can improve the heat dissipation of the CPU. However, many people will search on the Internet, and will find that the heat dissipation function of the metal heat sink is much stronger than the heat dissipation of the current thermal grease, and the effect is much better, so many people will subconsciously think that the thermal grease does not have a metal heat sink. Well, a few books will choose metal heat sinks instead of silicone grease.
But this time sharing is not to say that the metal heat sink does not have good silicone grease. The heat dissipation capability of the metal heat sink is undeniable. It can be said that it is the best choice for CPU heat dissipation. Its heat dissipation function is not comparable to silicone grease, but in turn Say, why does the thermal grease of the thermal grease have no metal heat sink, and so many people choose thermal grease? The secret is not known to everyone.
In fact, it is very simple. The CPU surface of the factory or the new computer is very smooth, which is very consistent with the surface of the metal heat sink. The metal heat sink also matches the surface of the heat sink. Based on the powerful heat dissipation function of the heat sink, all uses. The friends of the new computer know that the cooling of the new computer is very good. But the older CPU, the CPU surface that has been replaced a few times will appear pitted, the eyes can not be seen, it can be clearly seen with the amplifier, this time if you use the heat sink, it will not be worth the loss, The contact area between the CPU and the heat sink is reduced, and the heat conduction is also slowed down. At this time, the value of thermal grease is located. Silicone grease is liquid. It fills the pits on the CPU surface and increases the contact area between the CPU and the heat sink, thus enhancing the CPU and the heat sink. Thermal conductivity.
This is the difference between thermal grease and metal heat sink, each has its own strengths, and what time period uses different heat dissipation. Another point to note. Do not think that thermal grease is the main body of heat dissipation, it only helps the heat conduction between the CPU and the heat sink.