Replacing the Centerplane

1. Replace the 24 screws to secure the centerplane to the main chassis.

2. Replace and secure the front chassis to the centerplane.

   Use the three guide pins to align the front chassis with the centerplane.

   Figure E-12 Centerplane Guide Pins

   
   

3. Replace the two screws on the top front corners that secure the front chassis to the main chassis. See Figure E-11.

4. Replace the 15 screws on each side that secure the front chassis to the main chassis. See Figure E-11.

5. Connect all the cables to the centerplane.

   1. Connect the key switch PWB centerplane cable assembly.

      See "Key Switch PWB Centerplane Cable Assembly" for information on connecting this cable.

   2. Connect the media tray data and DC power cable assemblies.

      See "Media Tray Data and DC Power Cable Assemblies" for information on connecting these cables.

6. If present, connect the auxiliary fan tray to the centerplane.

   See "Auxiliary Fan Tray Assembly" for information on replacing the auxiliary fan tray.

7. Connect the PCMs to the centerplane.

   See Chapter 7, Power Supplies for information on replacing the PCMs.

8. Connect the peripheral power supplies to the centerplane.

   See Chapter 7, Power Supplies for information on replacing the peripheral power supplies.

9. Connect all the boards to the centerplane.

   See Chapter 3, CPU/Memory+ Boards and Components, Chapter 4, I/O+ Boards and Components, Chapter 5, Clock+ Board, and Chapter 6, Interface Board for information on replacing the boards.

10. Replace all the filler panels.

    1. Slide the filler panels toward the centerplane.

       Ensure that the arrows in the quarter-turn access slots point to the unlocked position.

       The filler panel should insert and seat smoothly. If it binds, remove it, and inspect the slot for any obvious obstructions.

    2. Use a Phillips #1 screwdriver to turn the arrows in the quarter-turn access slots to the locked position. See Figure E-2.

11. Replace all the disk drives.

    See Chapter 8, Internal SCSI and FC-AL Devices for information on replacing the disk drives.

12. Replace the fan tray assembly.

    See "Fan Tray Assembly" for information on replacing the fan tray assembly.

13. Replace the panels covering the front of the chassis.

    Complete the steps in Appendix E, Non-Chassis Field Replaceable Units (FRUs).