Of course, it's a good idea toturn your computer off before you do this, but leave itplugged into your power bar. A grounded computer is a safecomputer. While the computer is still off and grounded, open thecase. Before you touch anything, be sure to ground yourself. Touch a metal object not connected to your computer todiffuse any static electricity.
Dust accumulates inside yourcomputer at an amazing rate.
The cheap method of disposingof excess dirt is to put a stocking over your vacuum cleanerhose and gently remove dust components, suggests MathewFiszer, a senior technican at the west EdmontonCompuSmart store. He also suggests buying some cannedair to efficiently blow the dirt away. Be sure to clean the fanon your chip, if you have one. Also check the fan in thepower source. Clean your mouse.