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106 Working Inside the System
Front Panel Controller Board
The front panel board contains the server controls and indicators. It is mounted on snap-on and
threaded standoffs on the profusion carrier tray.
Removing the Front Panel Controller Board
See Figure 29.
1. Observe the safety precautions, warnings, and cautions at the beginning of this chapter.
2. Remove the:
• Top cover (see “Removing the Top Cover” on page 98).
• Fan array housing (see “Removing the Fan Array Housing” on page 101).
• LCD module (see “Removing the LCD Module” on page 102).
3. Remove the insulating material from the front panel controller board.
4. Remove the nine screws that attach the board to the chassis.
5. Using even pressure, slide the board straight toward the front of the chassis. The connector
attaching the board to the profusion carrier is at the left (A in Figure 29), so be sure to pull the
board STRAIGHT and not twist it.
CAUTION
When the front panel controller board is free of the profusion carrier tray
connector, its switches are surrounded by sheetmetal. Be careful not to
damage these switches when lifting the front panel board.
6. Push/pull the front panel board horizontally to free it from the profusion carrier connector, and
lift the board from the chassis.
7. Place the board on a nonconductive, static-free surface, or store it in an antistatic protective
wrapper.
Installing the Front Panel Controller Board
See Figure 29.
CAUTION
When positioning the front panel board for reinstallation, be sure its
switches are in the sheetmetal holes before mating its connector with the
profusion carrier. If the switches are not in the holes, they might be
damaged.
1. Observe the safety precautions, warnings, and cautions at the beginning of this chapter.
2. Position the front panel board over the threaded standoffs with its switches protruding through
the sheetmetal holes.
3. Push the board horizontally to mate the connector with the profusion carrier connector.
4. Insert the screws you removed earlier loosely into the threaded standoffs.
5. Make sure the board is properly seated, then tighten all screws firmly (8.0 inch-pounds).