Replacing a SAS conduit card in a 5802 expansion unit with the power turned off

Learn how to replace a SAS conduit card in the 5802 expansion unit with the power turned off.

1. Complete the prerequisite tasks. For instructions, see Before you begin.
2. Stop the system or logical partition. For instructions, see Stopping the system or logical partition.
3. Disconnect the power source from the system by unplugging the system.
   Attention: This system might be equipped with a second power supply. You must disconnect the power source from the system by disconnecting all power cords to prevent system damage during this procedure.

   (L003)

   
   or
   

4. Complete the following steps to replace the midplane and SAS conduit card into the system:
   1. Place the card connector (C) on the midplane connection (D) using the guide track (B) to ensure a good connection.
   2. Lift the handle (A) to seat and secure the SAS conduit card to the midplane as shown in Figure 1.
      Figure 1. Installing the SAS conduit card into the midplane

      
5. Complete the following steps to replace the midplane and SAS conduit card into the system:
   1. Align the midplane with the track and ensure that the slot (A) on the midplane attaches to the post (B) in the system.
   2. Secure the thumbscrews (C) and (D) on the SAS conduit card.
   3. Secure the thumbscrews (E) on the sides of the midplane.
   Figure 2. Installing the SAS conduit card and the midplane

   
6. Attach the power cord cover and secure the thumbscrew (A) to the system.
   Figure 3. Installing the power cord plate

   
7. Carefully slide the enclosure management controller into the system and close the latch (A) as shown in Figure 4.
   Figure 4. Replacing the enclosure management controller

   
8. Carefully lift and align the I/O system board with the slot at the rear of the expansion unit.
9. Insert the I/O system board firmly into the server, as shown in Figure 5.
10. Secure the I/O system board with the locking tabs (A), as shown in Figure 5.
    Figure 5. Install the I/O system board on a rack-mounted model

    
11. To replace the power supply, with the locking handle (A) in the open position, push the power supply into the expansion unit as shown in Figure 6.
12. Close the locking handle (A) until the power supply locks into position.
    Figure 6. Replacing a power supply

    
13. To replace the disk drive backplane, lift the backplane along the two sides and align the backplane with the guide rails in the expansion unit.
    CAUTION:
    The backplane can be heavy to lift. Ensure that you can safely complete this task before you begin.
14. Using your hand to support the bottom of the backplane, slide it into the expansion unit as shown in Figure 7.
15. Secure the backplane in place by moving the locking tabs from the open position (B) to the locked position (A).
    Figure 7. Installing the backplane on a rack-mounted model

    
16. Replace all disk drive units and fillers, if you had removed them earlier.
    1. Support the bottom of the disk drive unit as you align it with the guide rails in the backplane.
    2. Slide the disk drive unit all the way into the backplane.
    3. Push the handle (A) toward the disk drive unit to lock it into place.
    
17. Replace all expander cards and fillers, if you had removed them earlier.
    1. Supporting the bottom of the expander card with your hand, align it with the guide rails in the backplane.
    2. Slide the expander card all the way into the backplane.
    3. Push the handle (A) toward the card to lock it into place.
    
18. Start the system. For instructions, see Starting the system or logical partition.