Preparation before cleaning: silicone grease (available in computer stores, up to 5 yuan per tube), small-sized brush (the kind used for painting should be small, with slightly harder hair) ), used toothbrushes, a few pieces of wet paper or paper towels, a tap (essential), and an electric fan.

The process is as follows: First remove the heat sink together with the fan head (with a hand press The clip is better, if not, you can use a flat-head screwdriver to remove it), then clean the remaining thermal grease on the bottom of the heat sink and the CPU core, then remove the fan head from the heat sink, and then use a brush to clean the heat sink (you can also cooperate with Use a toothbrush (depending on the situation) to clean it once. When the dust on the heat sink cannot be brushed off with a brush, take it to the faucet and rinse it thoroughly. Then dry it with paper towels and put it in front of the electric fan to blow dry. Then use the electric brush and toothbrush to clean the fan head. Brush it clean, and finally wipe the dust on the fan head with a paper towel.

After the heat sink is completely dry, install the fan head and apply an appropriate amount of it on the CPU core. Apply a layer of heat-dissipating silicone grease, and then carefully fasten the fan as a whole. The fan is now completely cleaned. Suggestions before installation: Check whether the fan head has reached its expiry date. You can gently turn the fan leaf by hand. If the rotation is flexible and there is rebound when stopped, Like this, it proves that the fan is in its prime and its heat dissipation performance is good. Otherwise, the fan head should be changed or replaced as a whole (when replacing, you can take your existing fan to the computer store to choose one). If you have strong hands-on skills, you can replace the fan head with yours. Remove the fan head of the shaft, peel off the trademark tape on the back, and drop 2 drops of engine oil. Then stick the tape on it, or use a small piece of ordinary transparent tape to stick it on.