Replacing the desktop PC fan

So now you have a thermal paste kit and a PC CPU fan with you that it's time to install. To do this, do the same as the first option, take care to completely turn off your computer and disconnect it from the power by cutting off the power, the button 0 at the back. You can also unplug all cables (note their locations to reconnect them later) so that you can lay the PC on the floor, this way it will be more comfortable when changing the fan.
Discharge static electricity by touching a ground outlet (the protruding rod of electrical outlets) for a few seconds. This will allow you to touch the electronic parts of your computer without risk.

Step 3: Replace the Old PC Fan with a New One

Once done, open the side panel of your computer and locate the CPU cooler inside. Unlike fans that can be installed in your computer, the CPU cooler is usually located in the center of the motherboard and not on the walls. You will need to remove it before installing its replacement.
Unscrew the screws holding the CPU cooler and disconnect the power cable that connects it to the motherboard (note the location once again). Once all the screws are raised, pull gently but firmly on the CPU cooler to remove it.




The CPU appears under the CPU cooler, potentially with remnants of the previous thermal paste. Dampen the soft cloth slightly with acetone and gently, in small touches, remove the paste. Once the CPU is clean, let it dry for a few moments before continuing.
Read the instructions provided with your new CPU fan carefully; it contains information on how to install it.

The steps are relatively similar, but the CPU cooler models may vary. Take your thermal paste kit and apply a thin layer directly on the processor. You can use a plastic card or another tool to spread it more effectively.
Now remove the plastic from the heatsink that will come directly into contact with the processor and place it on top. Screw the mounting system and attach the fan to the heatsink. Be sure to respect the direction of the indicated air circulation; it should be expelled to the back of the PC case.
Connect the fan to the motherboard where the previous one was connected (it should be labeled CPU FAN next to the connector).

There you go, you have replaced the CPU fan of your PC; all that's left is to close it and reconnect the cables to start it up and listen to the absence of noise that this installation has allowed.
As you can see, if your computer becomes too noisy, don't hesitate to replace the CPU fan with a more efficient model. As you have understood, the benefit is twofold because a properly cooled computer has a longer lifespan!