The failing component is the system backplane.
Procedure
- Replace the system backplane.
- After you have replaced the part, set the enclosure serial number before powering on, otherwise
the machine will not perform an IPL. See the system unit service information for more information
regarding setting the enclosure serial number.
For more information about failing part numbers, location codes, or removal and replacement
procedures, see Part numbers topic. Select your machine type and model number to see applicable
procedures for your system.
This ends the procedure.