This article will show you step-by-step how to properly clean the inside of a computer and its components.
How to Clean Your PC | Computers & Coffee
Cleaning a PC is basically just removing dust. Your tools are a can of compressed air, a computer vacuum cleaner, and a dust mask. Cotton swabs and rubbing alcohol (for the case only) are optional.
The basic idea is to blow dust off components and if possible, trap it with a computer vacuum. Use alternative items such as a dust cloth or a gloved finger in tricky areas where canned air doesn't work.
How to clean your PC: