IBM pSeries 630 6C4 Service Manual page 130

Step 1521-7
1. Unplug the power cables from the system unit.
2. Exchange the operator panel assembly.
3. Plug the power cables into the system unit and wait for the OK prompt located on the operator panel
display.
4. Turn on the power.
Does the power LED on the operator panel come on and stay on?
NO Reinstall the original operator panel assembly. Go to "Step 1521-8".
Go to "MAP 0410: Repair Checkout" in the RS/6000 Eserver pSeries Diagnostic Information for
YES
Multiple Bus Systems.
Step 1521-8
1. Turn off the power.
2. Unplug the power cables from the system unit.
3. Record the slot numbers of all the adapters. Label and record the location of any cables attached to
the adapters. Disconnect any cables attached to the adapters and remove all the adapters
4. Remove all but one quad of memory DIMMs from the first processor card.
5. Remove processor card #2 (if installed).
6. Unplug the signal and power cables from the DASD backplane.
7. Unplug the disk drives from the DASD backplane.
8. Unplug the signal and power cables from any devices in the media bays.
9. Remove all the fans.
10. Plug the power cables into the system unit.
11. Turn on the power.
Does the power LED on the operator panel come on and stay on?
NO Go to "Step 1521-9".
YES Go to "Step 1521-10" on page 111.
Step 1521-9
Note: Either the processor card, PCI riser card, CEC backplane, or the power supplies may be defective.
To test each FRU, exchange the FRUs that have not already been exchanged in the following order:
1. Primary power supply
2. Redundant power supply (if installed)
3. CEC backplane.
4. Processor card
5. Memory
6. PCI riser card
110 Eserver pSeries 630 Model 6C4 and Model 6E4 Service Guide