IBM pSeries 690 Service Manual page 293

Step 152j-44
Are all the green "power good out" LEDs of both I/O subsystem DCAs off?
Yes Go to "Step 152j-45".
No Call for support.
Step 152j-45
Replace the cards in the following list one at a time and in the order listed:
v DCA 1 at V1
v DCA 2 at V2
Step 152j-46
Turn on the power.
Step 152j-47
Did the system stop with the same error code as recorded in "Step 152j-1" on page 267?
Yes Go to "Step 152j-48".
No The card just replaced is 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 152j-48
Turn off the power.
Make sure all the green "power good out" LEDs of both I/O subsystem DCAs are off.
Step 152j-49
Remove the new card that was just installed in "Step 152j-45" and reinstall the original card.
Step 152j-50
Have all the cards listed in "Step 152j-45" been replaced with new or original cards?
Yes Go to "Step 152j-51"
No Go to "Step 152j-45".
Step 152j-51
Examine the green "power good out" LEDs of both I/O subsystem DCAs.
Chapter 3. Maintenance Analysis Procedures
273