Light Path Diagnostics Leds - IBM x3550 M4 Type 7914 Installation And Service Manual

Light path diagnostics LEDs

This section 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 16 and
"System-board LEDs" on page 32 for the location of the system board LEDs.
Table 14. Light path diagnostics panel LEDs
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v If an action step is preceded by "(trained technician only)," that step must be performed only by a trained
technician.
LED Description
Check log LED An error has occurred and cannot
be isolated without performing
certain procedures.
System-error LED An error has occurred.
PS When only the PS LED is lit, a
power supply has failed.
PS + CONFIG
When both the PS and CONFIG
LEDs are lit, the power supply
configuration is invalid.
OVER SPEC The system consumption reaches
the power supply over-current
protection point or the power
supplies are damaged.
Action
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.
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.
The system might detect a power supply error. Complete the
following steps to correct the problem:
1. Check the power-supply with a lit yellow LED (see
"Power-supply LEDs" on page 141).
2. Make sure that the power supplies are seated correctly
and plugged in a good AC outlet.
3. Remove one of the power supplies to isolate the failed
power supply.
4. Make sure that both power supplies installed in the
server are of the same AC input voltage.
5. Replace the failed power supply.
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.
1. If the Pwr Rail (1, 2, 3, 4, 5, or 6) error was not detected,
complete the following steps:
a. Use the IBM Power Configurator utility to determine
current system power consumption. For more
information and to download the utility, go to
http://www.ibm.com/systems/bladecenter/
resources/powerconfig.html.
b. Replace the failed power supply.
2. If the Pwr Rail (1, 2, 3, 4, 5, or 6) error was also detected,
follow actions listed in "Power problems" on page 166
and "Solving power problems" on page 175.
Chapter 4. Troubleshooting
137