IBM pSeries 670 Service Manual page 305

Step 1545-6
Did the system stop with the same error code as recorded in "Step 1545-1" on page 284?
Yes Go to "Step 1545-7".
No The book or module just replaced was defective. This ends the procedure.
Return the system to its original configuration.
Go to "MAP 0410: Repair Checkout" in the RS/6000 and Eserver pSeries Diagnostic Information
for Multiple Bus Systems.
Step 1545-7
Have all the books or modules listed in "Step 1545-4" on page 284 been replaced?
Yes Go to "Step 1545-8".
No Go to "Step 1545-2" on page 284.
Step 1545-8
Turn off the power.
Step 1545-9
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 1545-10
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
Yes Go to "Step 1545-11".
No Call for support.
Step 1545-11
Attention: Before replacing the system backplane, call for support.
Replace the system backplane at U1.18-P1.
Step 1545-12
Turn on the power.
Step 1545-13
Did the system stop with the same error code as recorded in "Step 1545-1" on page 284?
Yes Go to "Step 1545-14".
No The part just replaced was defective. This ends the procedure.
Return the system to its original configuration.
Go to "MAP 0410: Repair Checkout" in the RS/6000 and Eserver pSeries Diagnostic Information
for Multiple Bus Systems.
Step 1545-14
Turn off the power.
Make sure all amber logic-power LEDs of all installed processor subsystem DCAs are off.
Step 1545-15
Call for support.
This ends the procedure.
Chapter 3. Maintenance Analysis Procedures
285