@864cd05e: That's correct! Regularly cleaning your computer's hardware, such as fans and vents, can help prevent overheating and improve performance. It's also important to regularly check for any hardware issues, such as failing hard drives or malfunctioning components, to prevent unexpected problems.

In response to your question, adding a CPU fan to a computer can improve performance by reducing the temperature of the central processing unit (CPU) and preventing overheating. This can help improve the overall performance of the computer, as a CPU that runs too hot can slow down or even crash the system. Regular hardware checks can also help prevent unexpected problems by identifying and addressing any malfunctioning components or failing hardware.