IBM pSeries 690 Service Manual page 239

Step 152c-11
Have all the books listed in "Step 152c-4" on page 218 been reinserted?
Yes The symptom has changed. 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.
No Go to "Step 152c-8" on page 218.
Step 152c-12
Turn off the power.
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 152c-13
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
Yes Go to "Step 152c-14".
No Call for support.
Step 152c-14
Pull out the following books about 25 mm (1 inch), if present:
v Memory book 4, at location U1.18-P1-M4
v Memory book 5, at location U1.18-P1-M8
v Memory book 6, at location U1.18-P1-M5
v Memory book 7, at location U1.18-P1-M1
Step 152c-15
Turn on the power.
Step 152c-16
Did the system stop with the same error code as recorded in "Step 152c-1" on page 218?
Yes Go to "Step 152c-22" on page 220.
No Go to "Step 152c-17".
Step 152c-17
One of the books just removed is defective.
1. Turn off the power.
2. Make sure all amber logic-power LEDs of all installed processor subsystem DCAs are off.
Step 152c-18
Reinsert one of the books that is pulled out and listed in "Step 152c-14".
Step 152c-19
Turn on the power.
Chapter 3. Maintenance Analysis Procedures
219