Air filters on an air conditioner, cooling fins on a refrigerator, a fan blade... anything that has a fan pushing or pulling air through will inevitably collect more as the airflow is increased.
Your computer is no exception.
- Blocks the air flow inside the computer, effectively preventing heat from being transfered to the outside of the case thus creating overheating problems, and eventually processor failure.
- Makes fan blades heavier, noisier and prone to breaking down.
- Can create shorts on board circuits.
- Can be a nest for nasty pests.
- And more...
As a preventive maintenance procedure, whenever you see a little dust accumulated on the vents on your computer, you can use a vacuum to suction that dust out.
If you decide you want to clean the interior as well, please note that:
- Opening the case might void your warranty.
- Electrostatic Electricity created by the airflow on the vacuum plastic can damage the components inside your computer.
- Touching any component inside without following proper ESD guidelines can cause component failures.
- Do not tilt the bottle, least the liquid might come out and short the components inside.
- Make sure the computer is off, and let it cool down before cleaning it. Blowing cold air from a pressurized container into hot components can cause serious problems to them.
If you're unsure or don't know exactly how to safely perform this task, please contact a professional technician that can do the job safely and efficiently.