Replacing a PCIe adapter in the 8001-12C or 8005-12N system

Learn how to replace a PCIe adapter in the IBM® Power® System S821LC (8001-12C) or the IBM CS821 (8005-12N) system.

1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
2. Refer to the PCIe adapter positions as shown in Figure 1.
   Figure 1. 8001-12C PCIe adapter positions

   

   Position	Step
   1 (UIO Network)	4
   2 (UIO Slot1)	3
   3, 4, 5 (PLX Slot1, WIO Slot1, WIO Slot2)	5

3. If you are working with a PCIe adapter in position 2, do the following:
   1. Remove the standard tailstock from the adapter.
   2. If you are inserting a storage drive adapter, connect the signal cables to the adapter before inserting the adapter. See Drive installation details for the 8001-12C system for cabling information.
   3. If needed, install a support bracket for the PCIe adapter to the system backplane. Also install a special support tailstock to the PCIe adapter.
   4. Insert the adapter into the PCIe riser.
   5. If you installed the support bracket for the PCIe adapter, fasten the special support tailstock to that bracket.
4. If you are working with the PCIe adapter in position 1, do the following steps:
   1. Replace the PCIe adapter riser into the system backplane.
   2. Replace the two screws to secure the PCIe riser card to the chassis as shown in Figure 2.
   3. If a PCIe adapter was in position 2, replace that adapter.
   Figure 2. Replacing the PCIe riser screws

   
5. If you need to replace the riser cards for positions 3 (A), or 4 or 5 (B); replace the screws that secure the PCIe riser card to the cage (C) as shown in Figure 3.
   Figure 3. Replacing the PCIe riser cards in the adapter cage

   
6. If the PCIe adapter to replace is in positions 3, 4 or 5, do the following steps:
   1. If you are inserting a storage drive adapter, using your labels, connect the signal cables to the adapter before inserting the adapter.
   2. Insert the adapter (A) into the riser (B) as shown in Figure 4, aligning it properly and inserting it fully into the slot. Secure the adapter tail-stock with 1 or 2 screws as needed.
      Figure 4. Inserting an adapter into position 3 of the riser

      
      Figure 5. Inserting an adapter into position 4 or 5 of the riser

      
   3. If the riser contains a GPU, replace the power cable (A) into the system backplane as shown in Figure 6.
      Figure 6. Plugging the GPU power cable

      
   4. Place the PCIe adapter riser and the cards it contains into the system backplane as shown in Figure 7.
      1. Ensure that the PCIe holder release pins (B) are retracted, so the arrows point into the system.
      2. Use the alignment pins (A) and slots to help you properly insert the riser cards and replace the cover
      3. Reset the retaining pins to secure the PCIe cage.
      Figure 7. Replacing the PCIe riser

      
7. Using your labels, replace any cables and plugs that you removed from the adapters.