PWR1918

Instructions for the 9117-MMA

1. Is the reference code 1xxx 8450?
   • No: Continue with the next step.
   • Yes: You have fewer voltage regulator cards than processor cards. Add another regulator card in the next empty position. This ends the procedure.
2. Is the reference code 1xxx 8451?
   • No: Continue with the next step.
   • Yes: You have too few voltage regulator cards installed. Add another regulator card in the next empty position. This ends the procedure.
3. Is the reference code 1xxx 1611, 1612, or 1613?
   • No: Continue with the next step.
   • Yes: Voltage regulator 1 is the failing item and needs to be replaced. This ends the procedure.
4. Is the reference code 1xxx 1621, 1622, or 1623?
   • No: Continue with the next step.
   • Yes: Voltage regulator 2 is the failing item and needs to be replaced. This ends the procedure.
5. Is the reference code 1xxx 1631, 1632, or 1633?
   • No: Continue with the next step.
   • Yes: Voltage regulator 3 is the failing item and needs to be replaced. This ends the procedure.
6. Is the reference code 1xxx 2602?
   • Yes: Continue with the next step.
   • No: Return to Starting a Service Call. This ends the procedure.
7. Perform the following:
   1. Remove one of the voltage regulator cards that you have not already removed in this procedure and replace it with a new one.
   2. Power on the system (see Powering on and powering off).

      Does reference code 1xxx 2602 appear again?

      • Yes: Continue with the next step.
      • No: The voltage regulator card that you replaced was the failing item. This ends the procedure.
8. Have you replaced all of the voltage regulator cards?
   • Yes: Replace the regulator distribution connection backplane (P2). This ends the procedure.
   • No: Reinstall the original regulator card, and then repeat step 7.