Removing a SAS conduit card from a 5802 expansion unit with the power turned off

Learn how to remove a SAS conduit card from a 5802 rack-mounted expansion unit if you must replace a failing part with the power turned off.

1. Complete the prerequisite tasks. For instructions, see Before you begin.
2. Identify the card you want to remove. For information, see Identifying a part.
3. Stop the system or logical partition. For instructions, see Stopping the system or logical partition.
4. Remove the drives and fillers as shown in Figure 1.
   1. Squeeze the latch of the drive and pull the handle (A) toward you to release the drive.
   2. Support the bottom of the drive with your hand and slide the drive out of the backplane.
   Figure 1. Removing the drives from the backplane

   
5. Remove the port cards and fillers as shown in Figure 2.
   1. Hold the end of the latching handle (A) and pull it upward to unlock the port card.
   2. Using your hand to support the bottom of the port card, slide the port card out of the backplane.
   3. Place the port card on an electrostatic discharge (ESD) surface.
   Figure 2. Removing the port card from the backplane

   
6. Remove the backplane as shown in Figure 3.
   CAUTION:
   The backplane might be heavy. Ensure that you can safely complete the procedure.
   1. Squeeze the blue latches (A) to unlock the handles.
   2. Pull the handles (B) outward in the direction shown to release the backplane.
   3. Slide the backplane out of the enclosure and use your hand to support the bottom of the backplane.
   Figure 3. Removing the backplane from the enclosure

   
7. Disconnect both the offline converter assembly (OCA) power cords by completing the following steps:
   1. Slide the power cord holders (A) to the left, located on the front of both the OCAs. See Figure 4.
   2. Label and disconnect both the OCA power cords (B) from each OCA.
   Figure 4. Disconnecting the OCA power cords

   
8. Remove the offline converter assemblies by completing the following steps:
   1. Pull the OCA handle (A) all the way down in the direction shown to unseat the OCA. See Figure 5.
   2. Hold both sides of the OCA and pull it out of the enclosure.
      Note: Use both the hands to support the OCA as you pull it out of the enclosure.
   3. Repeat these steps to remove both OCAs.
   Figure 5. Remove the offline converter assemblies

   
9. Remove the enclosure management controller by completing the following steps:
   1. Label and disconnect any cables connected to the enclosure management controller card.
   2. Pinch the latch (A) to unlock the handle (B). See Figure 6.
   3. Pull the handle outward in the direction shown to unseat the EMC card.
   4. Slide the enclosure management controller card straight out of the enclosure.
   Figure 6. Remove the enclosure management controller

   
10. Remove the power cord plate by turning the thumbscrew (A) and pulling the plate away from the system, as shown in Figure 7.
    Figure 7. Removing the power cord plate

    
11. Disconnect the cables from the back of the I/O system board.
12. Squeeze the release latches (A) and pull the levers (B) out away from the system, as shown in Figure 8.
    Figure 8. Removing the I/O system board

    
13. Slide the system board out of the system.
14. Remove the SAS conduit card and midplane from the enclosure by doing the following steps:
    1. Pull the spring plungers (A) up and turn them one quarter to the left.
    2. Turn the captive screws (B) and (C) counterclockwise until they are completely loosened.
    3. Pull the SAS conduit and midplane component out of the enclosure.
    Figure 9. Removing the SAS conduit card and midplane

    
15. Push the handles (A) on the conduit card down to disengage the card from the midplane, and remove the card.
    Figure 10. Removing the SAS conduit card from the midplane