IBM System x3500 Installation And User Manual page 38

Table 2. Light path diagnostics panel LEDs (continued)
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
When only the Power supply LED
is lit, a power supply has failed.
Power supply
Power supply + Configuration
When both the Power supply and
Configuration LEDs are lit, the
power supply configuration is
invalid.
The power supplies are using
more power than their maximum
rating.
Over spec
An error has occurred on a PCI
card or a PCI bus.
PCI
A nonmaskable interrupt has
occurred, or the NMI button was
pressed.
NMI
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IBM System x3500 M4 Type 7383: Installation and User's Guide
Action
If the CONFIG LED is not lit, the system might detect a power
supply error. Complete the following steps to correct the
problem:
1. Check the power-supply with an lit yellow LED (see
"Power-supply LEDs" on page 24).
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 voltage.
5. Replace the failed power supply (see "Installing a
hot-swap power supply" on page 106).
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.
If the Over spec LED on the light path diagnostics panel is lit,
complete the following steps in order until the problem is
solved:
1. Add a second power supply.
2. Replace the failed power supply.
3. Remove the optional devices.
1. Check if any PCI slot error LED is lit to identify the
component that caused the error.
2. Check the system-error log for information about the error.
3. If you cannot isolate the failing component by using the
LEDs and the information in the system-event logs,
remove one component at a time; and restart the server
after each component is removed.
4. If the failure remains, go to http://www.ibm.com/systems/
support/supportsite.wss/docdisplay?brandind=5000008
&lndocid=SERV-CALL.
1. Check the system-event logs for information about the
error.
2. Restart the server.