Hot-Swap Power-Supply Led Errors - IBM 84885BU Maintenance And Troubleshooting Manual

Note: See Chapter 7, "Parts listing Type 8488 and 8648," on page 129 to determine which components are
replaceable by the customer (CRU), and which components must be replaced by a field service technician (FRU).
Symptom
Suspected software problem.

Hot-swap power-supply LED errors

Use the information in this section to solve power-supply problems.
Note: The minimum configuration required for the dc good light to be lit is:
Note: See "System replaceable units" on page 131 to determine which components should be replaced by a field
service technician.
AC good DC good
LED LED
Off Off
On Off
On On
FRU/action
1. To determine if problems are caused by the software, verify that:
v The server has the minimum memory needed to use the software. For
memory requirements, see the information that comes with the software.
Note: If you have just installed an adapter or memory, you might have a
memory address conflict.
v The software is designed to operate on the server.
v Other software works on the server.
v The software that you are using works on another system.
If you received any error messages when using the software program, see the
information that comes with the software for a description of the messages and
suggested solutions to the problem.
2. If you have verified these items and the problem remains, contact the place of
purchase.
v Power supply
v Power cage assembly, if installed.
v System board (press the power-control button; see "Server controls,
connectors, LEDs, and power" on page 4).
Description FRU/action
No power to system or
1. Check ac power to the system.
ac problem.
2. Power supply.
Standby mode or dc
1. Check system board cable connectors JPWR1 and
problem.
2. Remove the adapters and disconnect the cables and power
3. Power supply.
4. Power cage assembly, if installed.
5. System board.
Power is working N/A
properly.
Software
JPWR2. (See "System board internal connectors" on page
86.) Press the power-control button; see "Server controls,
connectors, LEDs, and power" on page 4. If the dc good LED
is lit, press Ctrl+Alt+Delete. Watch the screen for any POST
errors. Check the system error log for any listed problems. If
the system starts with no errors:
a. Power switch assembly
b. System board
connectors to all internal and external devices. Turn on the
system. If the dc good LED is lit, replace the adapters and
devices one at a time until you isolate the problem.
Chapter 6. Symptom-to-FRU index
117