IBM pSeries 690 Service Manual page 254

Step 152e-10
Did the system stop with the same error code as recorded in "Step 152e-1" on page 233?
Yes The book just reinserted is defective. Replace it. 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 152e-11".
Step 152e-11
Have all the books listed in "Step 152e-4" on page 233 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 152e-8" on page 233.
Step 152e-12
Turn off the power.
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 152e-13
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
Yes Go to "Step 152e-14".
No Call for support.
Step 152e-14
Replace the books in the following list, if present, one at a time and in the order listed:
v DCA 1, at location U1.18-P1-V1
v DCA 2, at location U1.18-P1-V2
v DCA 3, at location U1.18-P1-V4
v DCA 4, at location U1.18-P1-V5
v DCA 5, at location U1.18-P1-V6
v DCA 6, at location U1.18-P1-V8
Step 152e-15
Turn on the power.
234 Eserver pSeries 690 Service Guide