Remove the two retaining screws securing the power supply to the back of the computer and the third retaining screw holding the power supply to the base of the computer. Be careful not to disconnect any of the cables. Slide the power supply out of the way.
2.Remove the retaining screws securing the option slot cover to the computer. (Keep the screw to secure the option card to the computer.)
3.Slide out the slot cover and set it aside. (Store it in a safe place in case you remove the option card later.)
4.Unpack the option card and adjust any switches or jumpers on it, if necessary. (Check the option card instructions.) When you handle the card, be careful not to touch any of the components on the circuit board or the