IBM pSeries 670 Service Manual page 210

Step 152e-16
Did the system stop with the same error code as recorded in "Step 152e-1" on page 188?
Yes Go to "Step 152e-17".
No 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.
Step 152e-17
Turn off the power.
Make sure all amber logic-power LEDs of all installed processor subsystem DCAs are off.
Step 152e-18
Remove the new book that was just installed in "Step 152e-14" on page 189 and reinstall the original book.
Step 152e-19
Have all the books listed in "Step 152e-14" on page 189 been replaced with new or original books?
Yes Go to "Step 152e-20".
No Go to "Step 152e-14" on page 189.
Step 152e-20
Turn off the power.
Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
Step 152e-21
Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
Yes Go to "Step 152e-22".
No Call for support.
Step 152e-22
Attention: Before you remove or replace any MCM or L3 module, stop, read and understand the
following procedures: "MCM Module (Processor) and Pass Through Modules" on page 799 and "L3 Cache
Modules" on page 819.
Record the location of each installed MCM module.
Attention: MCM modules have a limit of three plug cycles. Before replacing any of the MCMs in the
following list, call for support.
Record the original location on each MCM. Remove the following MCM modules, if present:
v MCM module 0, at location U1.18-P1-C1
v MCM module 3, at location U1.18-P1-C2
v MCM module 1, at location U1.18-P1-C3
v MCM module 2, at location U1.18-P1-C4
190 Eserver pSeries 670 Service Guide