Lenovo System x3630 M4, Installation And Service Manual

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Light path diagnostics LEDs
The following table describes the LEDs on the light path diagnostics panel and suggested actions to correct
the detected problems.
For additional information, see “Server controls, LEDs, and power” on page 14 and the “System-board
LEDs” on page 33 for the location of the system board LEDs.
Note: Check the IMM system-event log or system event log for additional information before replacing a FRU.
Table 11. Light path diagnostics panel LEDs
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If a action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
LED Description Action
Check log LED
An error has occurred and cannot
be isolated without performing
certain procedures.
1. Check the IMM2 system event log and the system-error
log for information about the error.
2. Save the log if necessary and clear the log afterwards.
System Error
LED An error occurred. 1. Check the light path diagnostics LEDs and follow the
instructions.
2. Check the IMM2 system event log and the system-error
log for information about the error.
3. Save the log if necessary and clear the log afterwards.
PS When only the PS LED is lit,
a power supply has failed.
When both the PS and CONFIG
LEDs are lit, the power supply
configuration is invalid. 1. If the CONFIG LED is not lit, the system might detect
a power supply error. Complete the following steps to
correct the problem:
a. Check the power-supply with a lit yellow LED (see
“Power-supply LEDs” on page 24).
b. Make sure that the power supplies are seated correctly
and plugged in a good AC outlet.
c. Remove one of the power supplies to isolate the failed
power supply.
d. Make sure that both power supplies installed in the
server are of the same AC input voltage.
e. Replace the failed power supply (see “Removing
a hot-swap ac power supply” on page 223) and
“Replacing a hot-swap ac power supply” on page 225.
2. If the PS LED and the CONFIG LED are lit, the system
issues an invalid power configuration error. Make sure that
both power supplies installed in the server are of the same
rating or wattage.
OVER SPEC
The power supplies are using
more power than their maximum
rating.
If the OVER SPEC LED is lit, use one of the following
procedures:
1. Turn off the server, disconnect the power from the server,
and install additional power supplies. Two power supplies
are needed for a fully configured server in non-redundant
mode. Four power supplies are required to support fully
loaded, redundant operation.
2. Remove any recently installed options.
3. Restart the server to see whether the problem remains.
Chapter 4
.
Troubleshooting
131