EPUB_PRC_HB_CODE isolation procedure

The service processor detected a problem during the early boot process.

About this task

Procedure

  1. Update the system firmware image. Go to Getting fixes and update the system firmware with the most recent level of firmware. Then, reboot the system. Does the problem persist?
    If Then
    Yes: Continue with the next step.
    No: This ends the procedure.
  2. Can you boot the system to the Petitboot menu?
    If Then
    Yes: From the Petitboot menu, select Exit to shell. Then, continue with step 4 and list SELs by using the Petitboot command line.
    No: Continue with the next step.
  3. Is another system available with the Linux operating system and ipmitool installed?
    If Then
    Yes: Continue with the next step and list SELs remotely over the LAN.
    No: Go to Collecting diagnostic data. Then, go to Contacting IBM service and support.
  4. Use the ipmitool command to examine system event logs (SELs).
    • To list SELs by using the Petitboot command line, use the following command: 
      ipmitool sel elist
    • To list SELs remotely over the LAN, use the following command: 
      ipmitool -I lanplus -U <username> -P <password> -H <BMC IP addres or BMC hostname> sel elist
  5. Identify all SELs with the value OEM record df and Correctable Machine Check Error or Transition to Non-recoverable in the description. Did you find one or more SELs with the value OEM record df and Correctable Machine Check Error or Transition to Non-recoverable in the description?
    If Then
    Yes: Continue with the next step.
    No: Go to Contacting IBM service and support. This ends the procedure.
  6. For each of the SELs that you identified in step 5, determine the sensor name that is associated with each SEL. Replace the following items, one at a time, until the problem is resolved:
    Note: To identify the physical location and removal and replacement procedure, see 7063-CR1 locations.
    • If the sensor name is CPU Func 1 or CPU Core Func x, where x is 1 - 12, replace system processor CPU 1.

    Does the problem persist?

    If Then
    Yes: Replace the system backplane. If the replacement of the system backplane does not resolve the problem, go to Contacting IBM service and support. This ends the procedure.
    No: This ends the procedure.