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How is the chassis air duct designed for heat dissipation?

How is the chassis air duct designed for heat dissipation?

The chassis air duct refers to the channel through which the air flows in the computer chassis, including the flow direction and the air volume. A reasonable chassis air duct can quickly discharge the heat accumulated by the CPU, graphics card and other heating users inside the host out of the chassis, and quickly absorb the cold air into the chassis, forming convection with the outside air, so as to enhance the heat dissipation inside the host.

A chassis with reasonable air duct design supports back wiring, not only for the beauty of the interior of the chassis, but also for making the interior space of the computer chassis larger, more open and better ventilated, maintaining the complete air duct of the chassis, which is conducive to heat dissipation. It supports lower power supply. It is better to have an independent storage space for power supply, which will not affect the heat dissipation of CPU, graphics card and other large heating users. In addition, fans are installed in the front and back of the chassis, or in the front and back of the chassis, so as to facilitate consumers to reasonably layout the internal air duct of the chassis and enhance the heat dissipation.

When installing fans, the rear and upper parts of the chassis are air outlets, and the front and lower parts of the chassis are air inlets. This is a reasonable arrangement of the air ducts of the chassis.

Since the number of chassis fans purchased by each user is different, the air ducts are arranged reasonably for different numbers of fans. The fan installation positions of the chassis are as follows.

When one fan is installed, the air outlet fan at the rear of the chassis has the best effect, especially the CPU temperature, which is the most obvious.
When there are two fans, one rear air outlet fan and one front air inlet fan are installed to reduce the temperature most obviously and achieve a good heat dissipation effect. Cold air is sucked in the front and hot air is sucked in the back.
When there are three fans, one rear air outlet fan and two front air inlet fans are installed to achieve the best cooling effect.
When there are four fans, one rear air outlet fan, two front air inlet fans and one upper air outlet fan are installed. Compared with three fans (two front fans and one rear fan), the cooling range is very small.
When there are five fans, one fan is added at the bottom of the chassis, which has little effect on the CPU temperature, but it can slightly reduce the temperature of the graphics card, which is only 1-2 degrees.

How many fans are suitable for the chassis?
If you need to install fans, generally 1-3 fans have the best cooling effect. If there are more fans, the cooling range will be very small, and the noise will increase significantly, especially in the dead of night.

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