IBM pSeries 690 Service Manual page 356

Step 1543-6
Did the system stop with the same error code as recorded in "Step 1543-1" on page 339?
Yes Go to "Step 1543-7."
No The 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 1543-7
Have all the modules listed in "Step 1543-4" on page 339 been replaced?
Yes Go to "Step 1543-8."
No Go to "Step 1543-2" on page 339.
Step 1543-8
Turn off the power.
Step 1543-9
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 1543-10
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
Yes Go to "Step 1543-11."
No Call for support.
Step 1543-11
Attention: Before replacing the system backplane, call for support.
Replace the system backplane at U1.18-P1.
Step 1543-12
Turn on the power.
Step 1543-13
Did the system stop with the same error code as recorded in "Step 1541-1" on page 312?
Yes Go to "Step 1543-14."
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 1543-14
Turn off the power.
Make sure all amber logic-power LEDs of all installed processor subsystem DCAs are off.
340 Eserver pSeries 690 Service Guide