Remove a board from a powered-on system only after the ASR software has disabled the board. If a board has not been disabled by the ASR software, then the operating system should be halted and the system powered off prior to board removal. See Chapter 11, Powering Off and On and then see "Removing a Board From a Powered-Off System".
Ensure that the board has been disabled by the ASR software. See "Hot-Plug Feature".
There are two possible results:
The three LEDs on the board are not lit (board has no power).
The outer two green LEDs are not lit and the middle yellow LED is lit (board in low power mode).
Use a Phillips #1 screwdriver to unlock the board.
Insert the screwdriver into each quarter-turn access slot (the slots are on the left and right sides of the board) and turn the arrow to the unlocked position (Figure 3-3).
Pull the ends of both extraction levers outward simultaneously to unseat the board centerplane connector from the centerplane receptacles (Figure 3-4).
If a board is not immediately replaced, a load board (Enterprise 6500 systems only) or a filler panel (Enterprise 4500 and 5500 systems only) must be installed in its place.