IBM pSeries 670 Service Manual page 268

Step 152m-18
Note: The following steps will require the system power to be removed. The operating system must be
shut down in all partitions before turning off the power.
Turn off the power. Turn off the UEPO switch. Examine the amber logic-power LEDs of all installed
processor subsystem DCAs. Also examine the green "power good out" LEDs of all installed I/O subsystem
DCAs.
Step 152m-19
Are all amber logic-power LEDs of all installed processor subsystem DCAs and all green "logic
power out" LEDs of all installed I/O subsystem DCAs off?
Yes Go to "Step 152m-20".
No Call for support.
Step 152m-20
Replace the second FRU in the list of FRUs recorded in step "Step 152m-1" on page 246.
Step 152m-21
Turn on the UEPO switch. Turn on the power.
Step 152m-22
Does the error code recorded in "Step 152m-1" on page 246 reappear?
Yes Go to "Step 152m-23".
Return the system to its original configuration. Go to "MAP 0410: Repair Checkout" in the
No
RS/6000 and Eserver pSeries Diagnostic Information for Multiple Bus Systems.
Step 152m-23
Go to "Step 152m-24".
Step 152m-24
Turn off the power. Turn off the UEPO switch. Examine the amber logic-power LEDs of all installed
processor subsystem DCAs. Also examine the green "power good out" LEDs of all installed I/O subsystem
DCAs.
Step 152m-25
Are all amber logic-power LEDs of all installed processor subsystem DCAs and all green "logic
power out" LEDs of all installed I/O subsystem DCAs off?
Yes Go to "Step 152m-26".
No Call for support.
Step 152m-26
Replace the third FRU in the list of FRUs recorded in step 152m-1.
Step 152m-27
Turn on the UEPO switch. Turn on the power.
Step 152m-28
Does the error code recorded in "Step 152m-1" on page 246 reappear?
Yes Call for support.
Return the system to its original configuration. Go to "MAP 0410: Repair Checkout" in the
No
RS/6000 and Eserver pSeries Diagnostic Information for Multiple Bus Systems.
248 Eserver pSeries 670 Service Guide