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2. Insert the board in the slot you have selected so the edge connector on the bottom rear of the board mates with the socket on the motherboard. Press down firmly on the board. Use the removed screw to secure the board.
3.Replace any other adapter boards you may have removed and
4.Attach cable/bracket assembly to Serial B and Parallel B connectors on the IO board, making sure that the red stripe plugs into pin number “1” on the board connector. After removing screw and, for the Turbo 2x2, adjacent rear slot cover, secure the bracket using the screw you just removed.
5.Replace the system cover taking care not to let it catch on the disk drive or power cables. Once the cover is in place, replace all the screws that you removed earlier. Reconnect any previously removed external cables.