Sun Microsystems 5500, Справочное руководство

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Chapter 4 I/O+ Boards and Components 4-9
1. Ensure that the board has been disabled by the ASR software. See Section 4.4
“Hot-Plug Feature.”
Once disabled by ASR, one of two results occurs:
■
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 is
in low power mode).
Note –
System software operates such that the LED pattern described is the same
for a board that is component side down (installed in front of card cage) or
component side up (installed in rear of card cage).
2. Unfasten any cable connectors from the front panel and set them aside.
Label cables to identify them for reconnection later.
3. 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 (
FIGURE 4-7
).
FIGURE 4-7
Unlocking and Locking Quarter-Turn Access Slots
4. Pull the ends of both extraction levers outward simultaneously to unseat the
board centerplane connector from the centerplane receptacles (
FIGURE 4-8
).
Unlocked Locked