Views: 83 Author: Site Editor Publish Time: 2020-03-10 Origin: Site
A CPU fan is used to quickly blow the heat transferred by the CPU into the nearby air. The cooling effect is directly related to the quality of the CPU cooling fan and the heatsink, so how to choose a suitable CPU fan has become an important topic to us. But since the market is full of fake and shoddy products, if we don't know the basics about CPU fans, it will be easy to be deceived during the purchase. Therefore, before we buy a CPU fan, it is necessary to understand some performance parameters about it. Once you know these identification standards, you will definitely choose a practical and suitable CPU fan. Next we will introduce several main performance parameters about the CPU fan to everyone, we hope it to be helpful to you.
The main performance of the CPU fan is reflected in the following aspects: rotating speed, fan blade shape, fan blade angle and bearing system. In general, the fan rotating speed is indicated on the heatsink's instructions. Generally speaking, the heat dissipation effect of the heatsink is 30% depending on the rotating speed of the fan. But it doesn’t mean that the higher the rotating speed, the better. The correct fan rotating speed should be determined according to the heat generated by the CPU. The fan rotating speed selection of different specifications should be differentiated. The basic principle is: under the premise of generating the same air volume, the larger the fan, the lower the rotating speed, the noise will also be smaller, generally between 3,500 rpm and 5,200 rpm is conventional.
The higher the power, the stronger the wind power of the fan and the better the heat dissipation effect. The power of the fan is directly related to the rotating speed of the fan, which means that the higher the fan rotating speed, the stronger the fan. Most of the fans sold in the computer market are DC 12V, and the power ranges from 0.X W to 5.04W. The power needs to be selected according to the heat generated by your CPU. Special reminder is that you can't emphasize the high power on one side. You only need to match the power of the CPU itself. If the power is too large, not only the cooling effect will not be much enhanced, but also it may increase the workload of the computer and eventually shorten the life of the CPU and fan. Therefore, while selecting the CPU power size, it should depend on the heat generated.
Better heatsink will have no burr on the edge, no distortion of the fins, smooth and no crack in the bottom, neat appearance, generous shape, quality assurance, anti-counterfeiting marks or other trademarks. In addition, you should pay attention to the bottom of the radiator not be too thick, because the thermal conductivity of aluminum is not very good, too thick bottom will affect the heat transfer. At the same time, the guide groove of the surface of the radiator should be dense to ensure that the heatsink can have a large contact area with the air, thereby enhancing the heat dissipation effect.
The specifications of CPU fans are mainly 60, 70, 80, 120 or even 140. What is this specification?
We know that the shape of the outer frame of the CPU fan is square, and its specification is the side length of the square. For example, if a CPU fan has a frame side length of 60 mm, the specification is 60. In addition, the fan is divided into thick type and thin type, and the fans for the CPU are all thin. Fans with the same size are interchangeable. For example, the fans of Tt Volcano 9 and Coolermaster HV81 are all 80. You can remove the Volcano 9 fan and put it on the heatsink of HV81. There is no problem at all. There are also some specially designed fans that cannot be interchanged with other fans, such as the Intel original radiator fan, which is connected to the clip and cannot be replaced.
