IBM pSeries 690 Service Manual page 242

Step 152c-34
Replace the books in the following list, if present, one at a time and in the order listed:
v Primary I/O book, at location U1.18-P1-H2
v DCA 1-RH, at location U1.18-P1-V1
v DCA 2-RH, at location U1.18-P1-V2
v DCA 3-RH, at location U1.18-P1-V4
v DCA 4-RH, at location U1.18-P1-V5
v DCA 5-RH, at location U1.18-P1-V6
v DCA 6-RH, at location U1.18-P1-V8
Step 152c-35
Turn on the power.
Step 152c-36
Did the system stop with the same error code as recorded in "Step 152c-1" on page 218?
Yes Go to "Step 152c-37".
No The book 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 152c-37
Turn off the power.
Make sure all amber logic-power LEDs of all installed processor subsystem DCAs are off.
Step 152c-38
Remove the new book that was just installed in "Step 152c-34" and reinstall the original book.
Step 152c-39
Have all the books listed in "Step 152c-34" been replaced with new or original books?
Yes Go to "Step 152c-40".
No Go to "Step 152c-34".
Step 152c-40
Turn off the power.
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 152c-41
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
Yes Go to "Step 152c-42" on page 223.
No Call for support.
222 Eserver pSeries 690 Service Guide