Does the cpu fan blow inward or outward?

CPU fan, also known as cooling fan, is a fan used to dissipate heat for the CPU. It is provided to the radiator and chassis to use them to quickly conduct the heat of the CPU out and Blow it into the nearby air to have a cooling effect. The cooling effect is directly related to the quality of the CPU cooling fan and heat sink.

The cpu fan blows inward, because the CPU is attached under the radiator. The CPU fan blows air against the radiator, causing the air to flow to achieve a cooling effect, and the CPU passes to the radiator. The heat above is also dissipated with the convection of air.

Performance of CPU fan

The main performance of the fan is reflected in the following aspects: rotation speed, fan blade shape, fan blade angle and bearing system. Generally, the fan speed is indicated on the radiator manual. Generally speaking, 30% of the cooling effect of the radiator depends on the speed of the fan. But the higher the fan speed, the better. The correct fan speed should be determined based on the heat generated by the CPU. The selection of fan speeds of different specifications should be differentiated. The basic principle is: on the premise of generating the same air volume, the larger the fan, the lower the speed, and the noise will also be Smaller, generally a speed between 3500 rpm and 5200 rpm is more conventional.

The greater the power, the stronger the fan wind force and the better the heat dissipation effect. The power of the fan is directly related to the speed of the fan, which means that the higher the speed of the fan, the more powerful the fan will be. Most fans sold on the computer market are DC 12V, and the power ranges from 0. I would like to remind everyone that high power cannot be emphasized one-sidedly. It only needs to match the power of the CPU itself. If the power is too high, not only will the cooling effect not be greatly enhanced, but it may increase the workload of the computer and ultimately shorten the time. CPU and fan lifespan. Therefore, when selecting the CPU power, you should consider "heat".

A better radiator will have no burrs on the edges, no deformation of the cooling fins, a smooth bottom without cracks, a neat appearance, a generous shape, a warranty, an anti-counterfeiting mark or other trademarks, etc. In addition, when choosing a radiator, everyone should also pay attention to the fact that the bottom of the radiator should not be too thick, because the thermal conductivity of aluminum is not very good. If it is too thick, it will affect the heat transfer; in addition, the guide groove on the surface of the radiator should be denser. , this can ensure that the radiator has a larger contact area with the air, thereby enhancing the heat dissipation effect.

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