Replace an adapter card
1) Touch the chassis to ground any static.
2) Grasp the expansion card by its edges and insert the card bottom (the part with the gold-striped bars) into the free slot.
3) Press down firmly until the card is completely seated (especially if it is an EISA card).
CAUTION: Avoid side-to-side movements when positioning the card because circuit boards crack easily.
4) Insert the screw previously removed from the rear metal slot cover, into the top notch of the mounting bracket on the card and the screw hole, and tighten it securely.