STEP ONE: Prepare your computer
Ground Yourself! Static electricity can severely damage electronic parts.
Before touching any electronic parts, drain the static electricity from your body. You can do this by touching the internal metal frame of your computer.Power off the computer and all attached devices such as monitors, printers, and external componentsDisconnect the monitor cable from the back of the computerRemove your computer cover (In most cases this is held in place by several screws or clips - you may need to consult your system manual or case manual for additional information)Allow your computer to cool before touching any internal parts