IBM pSeries 670 Service Manual page 255

Step 152k-39
Reinsert one of the cards that is removed and listed in "Step 152k-35" on page 234.
Step 152k-40
Turn on the power.
Step 152k-41
Did the system stop with the same error code as recorded in "Step 152k-1" on page 230?
Yes The card 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 152k-42".
Step 152k-42
Have all the cards listed in "Step 152k-35" on page 234 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 152k-39".
Step 152k-43
Turn off the power.
Examine the green "power good out" LEDs of both I/O subsystem DCAs.
Step 152k-44
Are all the green "power good out" LEDs of both I/O subsystem DCAs off?
Yes Go to "Step 152k-45".
No Call for support.
Step 152k-45
Remove the following DASD 4-packs, if present, from the I/O subsystem. Record the DASD locations:
v DASD 4-pack at P3
v DASD 4-pack at P4
v DASD 4-pack at P5
v DASD 4-pack at P6
Step 152k-46
Turn on the power.
Step 152k-47
Did the system stop with the same error code as recorded in "Step 152k-1" on page 230?
Yes Go to "Step 152k-53" on page 237.
No Go to "Step 152k-48".
Step 152k-48
One of the DASDs just removed is defective.
Turn off the power.
Chapter 3. Maintenance Analysis Procedures
235