IBM pSeries 670 Service Manual page 257

Step 152k-49
Reinsert one of the DASD 4-packs that is removed and listed in "Step 152k-45" on page 235.
Step 152k-50
Turn on the power.
Step 152k-51
Did the system stop with the same error code as recorded in "Step 152k-1" on page 230?
Yes One of the DASD in the DASD 4-pack 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-52".
Step 152k-52
Have all the cards listed in "Step 152k-45" on page 235 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-49".
Step 152k-53
Turn off the power.
Examine the green "power good out" LEDs of both I/O subsystem DCAs.
Step 152k-54
Are all the green "power good out" LEDs of both I/O subsystem DCAs off?
Yes Go to "Step 152k-55".
No Call for support.
Step 152k-55
Replace the books in the following list one at a time and in the order listed:
v DCA 1 at V1
v DCA 2 at V2
Step 152k-56
Turn on the power.
Step 152k-57
Did the system stop with the same error code as recorded in "Step 152k-1" on page 230?
Yes Go to "Step 152k-58" on page 238.
No The part 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.
Chapter 3. Maintenance Analysis Procedures
237