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Is the more fans on the case, the better?

Update:11-08-2020
Summary:

More fans may not be better For most current cases, fan […]

More fans may not be better

For most current cases, fan space is generally provided in several areas such as front, rear, upper, lower, and side. Before we buy a fan, the first thing to do is to decide which parts of the chassis to add fans according to the different configurations of our own, so as to improve the heat dissipation capacity. In addition, in terms of the number of fans, more is not better. Although the heat dissipation capacity is improved, the noise and dust problems that follow are also something we have to consider. If you want to figure out how many fans you need, the first thing to figure out is the role each fan on the chassis plays in heat dissipation.

Front and rear fans:

Forward and backward air duct

At present, most computer cases have reserved space for installing fans on the panel and back. At the same time, it is also the most commonly used heat dissipation method by adopting the "forward and last out" air duct mode. The external cold air is sucked in by the front panel fan of the chassis, gradually heats up through the internal hardware, and finally becomes hot air and is discharged from the cooling fan behind the chassis. For most configurations, the fans at the front and rear of the chassis can be said to be the basis of the air duct.

Upper and lower fans:

Vertical duct design

The fan on the top of the chassis is mainly responsible for auxiliary heat dissipation, and can quickly draw out the hot air that cannot be discharged in time inside the chassis. With the cooperation of the mixed air duct, the rear fan can be used to speed up the exhaust speed at the end of the air duct. For some configurations that use high-heat processors and graphics cards. The heat dissipation effect is more obvious.

Fan position at the bottom of the chassis

The role of the fan at the bottom of the chassis is somewhat similar to the vertical duct design used in some high-end chassis. Intake cold air from the bottom to provide more cold air for the upper graphics card to cool down. The disadvantage is that it is easier to suck the dust on the desktop and the floor directly into the chassis.

Side fan:

Side fan position

At present, most of the mainstream cases on the market provide openings of different areas in the side panel position. Some game case products can also be equipped with multiple fans on the side panel. The side panel fan can not only directly provide external cooling for the graphics card. Air to cool down also plays a role in increasing internal wind pressure.

If you are using an integrated platform or an entry-level discrete graphics platform, install an intake fan on the front and rear of the chassis to form a positive pressure air duct mode inside. If you are using a high-end gaming platform that generates a lot of heat, you need not only the support of the front and rear fans, but also install fans on the side panels of the chassis to enhance heat dissipation. For those overclockers, the fan on the top of the case is also a must.

 

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