IBM iSeries Series, Hardware Problem Analysis And Isolation

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b. Remove one of the memory cards that was not previously removed in this procedure and replace
it with the new one.
c. Power on the system.
Does a power reference code occur?
v
Yes : Continue with the next step.
v
No : The memory card that was removed in this step was the failing item.
This ends the procedure.
6. Have all of the memory cards been swapped out with a new unit?
v
No : Perform the following:
a. Remove the new memory card that was installed in step 5 (See page 158) and replace the
original memory card.
b. Repeat step 5 (See page 158).
v Yes : Continue with the next step.
7. Perform the following:
a. Power off the system.
b. Remove the processor card and replace it with the new one.
c. Power on the system.
Does a power reference code occur?
v Yes : Continue with the next step.
v
No : The processor card was the failing item.
This ends the procedure.
8. Perform the following:
a. Power off the system.
b. Remove one of the power supplies that was not previously removed in this procedure and replace
it with the new one.
c. Power on the system.
Does a power reference code occur?
v
Yes : Continue with the next step.
v No : The power supply that was removed was the failing item.
This ends the procedure.
9. Have all of the power supplies been swapped out with a new unit?
v No : Perform the following:
a. Remove the new power supply that was installed in step 8 (See page 159) and replace the
original power supply.
b. Repeat step 8 (See page 159).
v
Yes : Replace the “BACKPLN” on page 284.
This ends the procedure.
10. Perform the following:
a. Power off the system.
b. Reinstall all of the cards you removed in step 2 (See page 158).
c. Reconnect the ac power cable to the unit you are working on.
d. Power on the system.
Does a power reference code occur?
v Yes : Continue with the next step.
v
No : Go to step 13 (See page 160).
11. Perform the following:
Analyze hardware problems
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