IBM eserver 630 6C4, Service Manual

Page: 118 / 573

Step 1520-11
Does the system contain two power supplies?
NO Go to “Step 1520-12”.
YES Go to “Step 1520-14” on page 99.
Step 1520-12
Shut down the system and remove all power cables from the rear of the system unit.
Exchange the following FRUs in the order listed:
1. Power supply
2. CEC backplane
3. PCI riser card
Restart the system and perform error log analysis.
Do you get an SRN indicating a voltage sensor is out of range?
NO The last FRU exchanged is defective. Go to
″
MAP 0410: Repair Checkout
″
in
the RS/6000
Eserver
pSeries Diagnostic Information for Multiple Bus
Systems.
YES Reinstall the original FRU.
Repeat the FRU replacement steps until a defective FRU is identified or all the
FRUs have been exchanged.
If the symptom did not change and all FRUs have been exchanged, go to
“Step 1520-13”.
If the symptom changed, check for loose cards, cables, and obvious problems.
If you do not find a problem, go to the “Quick Entry MAP” on page 58 and
follow the instructions for the new symptom.
Step 1520-13
Check that the wall outlet is properly wired and is providing the correct voltage.
Did you find a problem?
NO Go to “MAP 1540: Minimum Configuration” on page 101.
YES Correct the problem. Go to
″
MAP 0410: Repair Checkout
″
in the
RS/6000
Eserver
pSeries Diagnostic Information for Multiple Bus Systems.
98 Eserver
pSeries 630 Models 6C4 and 6E4 Service Guide