INTERNAL MODEM INSTALLATION WITH WINDOWS 3.X154. Find an empty ISA expansion slot atleast as long as the gold edge of yourmodem. (ISA slots have black plasticgrooves lined with silver metal.)Unscrew and remove the expansionslot cover (the long narrow piece ofmetal that keeps dust from enteringthrough the opening perpendicular tothe slot). Be careful not to drop thescrew into the computer. You willneed it later to screw the modem intoplace.