IBM System x3800 Problem Determination And Service Manual page 75

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, "Parts listing, System x3800 Type 8866," on page 107 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Operator
Power-supply
information
LEDs
panel
power-on
AC DC LED
Off Off Off
Lit Off Off
Lit Lit Off
Lit Lit Flashing
Lit Lit
Description
No power to the
server, or a problem
with the ac power
source.
DC source power
problem
Standby power
problem
System power-on
problem
Lit The power is good.
Action
1. Check the ac power to the server.
2. Make sure that the power cord is connected to a
functioning power source.
3. Remove one power supply at a time.
1. Make sure that the microprocessor tray is connected
to the power backplane.
2. Replace the failing power supply.
3. (Trained service technician only) Replace the power
backplane
4. View the system-error log (see "Error logs" on page
18).
1. View the system-error log (see "Error logs" on page
18).
2. (Trained service technician only) Use the
force-power-on jumper as a debugging aid (see "I/O
board internal connectors and jumpers" on page 8) to
determine whether the information panel switch and
cable are faulty.
3. (Trained service technician only) Replace the power
backplane.
1. View the system-error log (see "Error logs" on page
18).
2. Press the power-control button on the operator
information panel.
3. (Trained service technician only) Use the
force-power-on jumper as a debugging aid (see "I/O
board internal connectors and jumpers" on page 8) to
determine whether the information panel switch and
cable are faulty.
4. Remove the optional Remote Supervisor Adapter II
SlimLine, and try to turn on the server.
5. Reseat the microprocessor tray.
6. (Trained service technician only) Replace the
microprocessor tray.
No action.
59
Chapter 2. Diagnostics