Systems installed in carpeted areas are at greater risk for damage due to static discharge. Static-guard sprays are available to treat carpets in areas where static electricity is a problem. Always disconnect power cables prior to removing the system cover. To avoid discharging static electricity, ground yourself by resting one hand on the metal chassis of the computer before touching any components. Do not allow dust to accumulate inside your computer.
Dust acts as an insulator that prevents the escape of heat.
Circuit boards and your processor may become over-heated and cease to function properly. To clean the inside of your computer, remove the case and gently remove the dust using compressed air or a vacuum designed specifically for computers. Never connect or disconnect any peripheral device while your computer has power. Use a cotton swab and an alcohol solution to clean your mouse and keyboard. Disconnect your mouse and keyboard before cleaning them.