What is the sysfan interface on the motherboard?

The SYSFAN interface on the motherboard is the system fan interface, which is the chassis fan.

1. This is the interface for the fan.

2. sys means system, fan means fan, and sys fan means "system fan", which is connected to the system fan or power supply fan interface.

There are two types of fans that need to be distinguished here. Computer fans are divided into: chassis fans and CPU fans. The case fan is installed on the computer case to dissipate heat for the entire internal space of the computer case, while the CPU fan is mainly installed on the CPU processor to dissipate CPU heat. Usually it's the buzzing thing when the computer starts up.

The system fan is used to plug in the host fan. That is to say, plug in the chassis fan and it has the function of detecting the status of the fan. Nowadays, many chassis do not have fans with this interface, and they all directly connect the chassis fan to the power supply. However, there are such fans available in the market. Some cases also come with them, but very few. Many cases have fans that you have to buy separately.

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