IBM pSeries 690 Service Manual page 348

Step 1544-7
Have all the books or modules listed in "Step 1544-4" on page 327 been replaced?
Yes Go to "Step 1544-8".
No Go to "Step 1544-2" on page 327.
Step 1544-8
Turn off the power.
Step 1544-9
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 1544-10
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
Yes Go to "Step 1544-11".
No Call for support.
Step 1544-11
Attention: Before replacing the system backplane, call for support.
Replace the system backplane at U1.18-P1.
Step 1544-12
Turn on the power.
Step 1544-13
Did the system stop with the same error code as recorded in "Step 1544-1" on page 327?
Yes Go to "Step 1544-14".
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 1544-14
Turn off the power.
Make sure all amber logic-power LEDs of all installed processor subsystem DCAs are off.
Step 1544-15
Call for support.
This ends the procedure.
328 Eserver pSeries 690 Service Guide