IBM pSeries 670 Service Manual page 326

Step 154B-5
Turn on the power.
Step 154B-6
Did the system stop with the same error code as recorded in "Step 154B-1" on page 305?
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.
Yes Go to "Step 154B-7".
Step 154B-7
Have all the books or modules listed in "Step 154B-4" on page 305 been replaced?
No Go to "Step 154B-2" on page 305.
Yes Go to "Step 154B-8".
Step 154B-8
Turn off the power.
Step 154B-9
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 154B-10
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
No Call for support.
Yes Go to "Step 154A-11" on page 302.
Step 154B-11
Attention: Before replacing the system backplane, call for support.
Replace the system backplane at U1.18–P1.
Step 154B-12
Turn on the power.
Step 154B-13
Did the system stop with the same error code as recorded in "Step 154B-1" on page 305?
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.
Yes Go to "Step 154B-14".
Step 154B-14
Turn off the power.
Make sure all amber logic-power LEDs of all installed processor subsystem DCAs are off.
Step 154B-15
Call for support. This ends the procedure.
306 Eserver pSeries 670 Service Guide