How can I clean the dust on the computer power fan?

1. In the first step, shut down the computer and unplug the power cord.

2. Now let's take apart the data center and remove the power supply. Note: unscrew the three screws of the fixed fan and unplug the power fan from the outside (there will be some differences between different chassis)

3. As shown in the following figure, we can use related tools to cut and remove the rubber cover for sealing with a knife.

4. Now let's remove the fan blades. Here, we just need to remove the fixed bearing washer to remove the fan blades.

5. Now we can start to deal with the gray soil, and use a brush to clean it step by step. Remember not to wash it with water.

6. After cleaning, install the software step by step.