IBM pSeries 690 Service Manual page 356

Step 1548-5
Turn on the power.
Step 1548-6
Did the system stop with the same error code as recorded in "Step 1548-1" on page 335?
Yes Go to "Step 1548-7".
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 1548-7
Have all the books or modules listed in "Step 1548-4" on page 335 been replaced?
Yes Go to "Step 1548-8".
No Go to "Step 1548-2" on page 335.
Step 1548-8
Turn off the power.
Step 1548-9
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 1548-10
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
Yes Go to "Step 1548-11".
No Call for support.
Step 1548-11
Attention: Before replacing the system backplane, call for support.
Replace the system backplane at U1.18-P1.
336 Eserver pSeries 690 Service Guide