If you receive the FWPCI4 symbolic FRU, perform the following.

1. If a location code is associated with the checkpoint, replace the adapter identified by the location code. See Managing PCI Adapters, order number SA76-0092 for PCI adapter FRU part numbers.
2. If no location code is specified, go to PFW1542: I/O problem isolation procedure, or see "PFW1542: I/O problem isolation procedure" in the service guide for the server.

This ends the procedure.