Use a Phillips #1 screwdriver to mechanically release the board from the system card cage.
Insert the screwdriver into each quarter-turn access slot (the slots are located on the left and right sides of the board front panel) and then turn a quarter turn so that the arrow points to the unlocked position. See Figure 3-2.
Pull the ends of both extraction levers outward simultaneously to unseat the board from the centerplane receptacles (Figure 3-3).
If a board is not immediately replaced, a filler panel must be installed in its place.
See "Filler Panels".