Now that you’re finally inside the case and grounded properly, take a can of compressed air and blow short bursts onto the components. Position the can so it’s as upright as possible and blow the dust out of the case. There’s no point in blowing the dust and dirt from one area of the case to another. Make sure you’re in a place where you don’t mind dust flying about though; there will be a lot of it!Tip: Before using compressed air make sure that no loose screws or other items have fallen into the case.If you don’t think the compressed air got all of the dust, grime, hair, pollen, and other contaminants, there are other ways to attack it. You can use a vacuum cleaner and a brush or other attachment to pull dust off the motherboard and components. This is a bit more dangerous, though, because you could pull components loose and damage the computer. If you do decide to vacuum, keep the attachment a few inches away from the motherboard. When moving a vacuum, use slow movements and take your time.Finally, you can use a small paintbrush to remove stuck-on dirt and grime. Be careful not to leave any brush hairs inside the case or loosen any wires or other components though. Use the brush as archaeologists do during a dig. If you are not careful, you’ll have a hard time figuring out where a stray jumper or wire goes if one comes loose.After cleaning the motherboard and components, take a look at the tower itself. The inside of the air vents may be just as dirty as the outside was. Use a vacuum or compressed air to clean these areas.When cleaning the inside components, remember these tips:
- Never use anything wet on any component.
- Work slowly and deliberately. Working too fast will likely cause errors in judgment.
- Don’t leave anything inside the case when you’re done. Stray screws can cause damage to components and cause problems that are really difficult to diagnose.
- Perform these tasks twice a year.