Remove model 55x, 720, or attached expansion-unit, PCI adapters with the system power off

You might need to remove a PCI adapter. Use the procedure in this section to perform this task.

1. Perform the prerequisite tasks described in Before you begin.
2. Take appropriate precautions for avoiding electric shock and handling static-sensitive devices. For information, see Avoiding electric shock and Handling static-sensitive devices.
3. If you are removing a failing PCI adapter, see Identify a failing part. If you are removing the PCI adapter for other reasons, continue to the next step.
4. Stop the system or logical partition.
5. Disconnect the power source from the system by unplugging the system.
   Note: This system might be equipped with a second power supply. Before continuing with this procedure, ensure that the power source to the system has been completely disconnected.
6. If you are removing a PCI adapter in a rack-mounted system or expansion unit, follow these steps.If you are servicing a stand-alone system, go to the next step.
   • If you are placing an adapter in a model 5790 or D11, use the PCI adapter cassette procedures. See Model 560Q, 570, 590, 595 , and attached expansion units, PCI adapters and cassettes.
   • Installing, removing, or replacing a PCI adapter in a D10, 5791, or 5794 expansion unit is not a customer procedure. Contact your service provider.
   • For the 55x system unit, the 0595, 5095, or D20 expansion unit, follow these steps:
     1. Open the front rack door.
     2. Place the system or expansion unit in the service position. See Place the rack-mounted system or expansion unit in the service position.
     3. Remove or open the service access cover as follows:
        • Remove the service access cover from the model 285, 51x, 52x, 55x, 710, or OpenPower 720
        • Open the model 0595, 5095, or D20 service access cover
   • For all other rack-mounted expansion units, follow these steps:
     1. Open the back rack door.
     2. Remove the cover or covers. For instructions on removing covers, select the appropriate procedure from the following:
        • Remove the back door from the 5074, 5079, and 5094 expansion unit. These steps also apply to the 5294, 8294, and 9194 expansion units. When the cover is removed, remove the PCI adapter access plate.
        • Remove the back cover from the 0588 expansion unit. These steps also apply to the model 5088.
        • Open the model 0595, 5095, or D20 service access cover
7. If you are removing a PCI adapter in a stand-alone system or expansion unit, follow these steps:
   • Remove the service access cover from the model 285, 51x, 52x, 55x, 710, or OpenPower 720
   • Remove the back door and cover from the 5095 expansion unit
8. Determine which adapter you plan to remove, then label and disconnect all cables attached to that adapter.
9. Record the slot number and location of each adapter being removed.
   Note: Adapter slots are numbered on the rear of the system.
10. Rotate the adapter locking latch A counterclockwise as shown in Figure 1 or Figure 2.
11. Lift the black tab B attached to the adapter retainer assembly, and keep the black tab in a vertical position.
12. Carefully grasp the PCI adapter by its top edge or upper corners, and remove it from the system. Store the adapter in a safe place.
    Figure 1. PCI adapter removed from the rack-mounted system unit

    
    Figure 2. PCI adapter removed from the stand-alone system unit

    
13. If you are removing a PCI adapter as part of another procedure, return to that procedure. If not, continue to the next step.
14. If you plan to install another adapter into the vacated slot, go to Replace model 55x, 720, or attached expansion-unit, PCI adapters with the system power off; otherwise, continue with the next step.
15. Seal the expansion slot using an expansion-slot cover.
16. Replace or close the covers.
17. Reconnect the power source to the system.
18. Place the rack-mounted system or expansion unit in the operating position if you are servicing a rack-mounted system. If you are servicing a stand-alone system, continue to the next step.
19. On a rack-mounted system, close the rear rack door.
20. Start the system or logical partition.
21. To replace the PCI adapter, see Replace model 55x, 720, or attached expansion-unit, PCI adapters.