IBM E Server x336 Series, Option Installation Manual

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Light Path diagnostics panel
The following illustration shows the controls and LEDs on the Light Path diagnostics
panel.
Use the Light Path diagnostics panel to diagnose system errors. The Light Path
diagnostics panel is on the top of the operator information panel. To access the
Light Path diagnostics panel, press the release latch to the left, on the front of the
operator information panel; then, slide out the operator information panel.
For more information about Light Path diagnostics, see the Hardware Maintenance
Manual and Troubleshooting Guide on the IBM xSeries Documentation CD.
The following table lists the LEDs on the Light Path diagnostics panel, the problems
that they indicate, and actions to solve the problems. The actions in the table refer
to two different error logs; the event error log and the POST error log.
v
If a Remote Supervisor Adapter II SlimLine option is installed in the server, use
the system event error log.
v
If a Remote Supervisor Adapter II SlimLine option is not installed in the server,
use the POST error log
Note: The Intelligent Platform Management Interface (IPMI) baseboard
management controller (BMC) obtains system error information and lights up
the appropriate Light Path LED.
The two error logs are in the Configuration/Setup Utility in the Event/Error logs
option. For more information, see the User’s Guide .
LED Problem Action
None An error has occurred and cannot be
diagnosed, or the ASM processor has
failed. The error is not represented by a
Light Path diagnostics LED.
Check the system error log for information about the error.
OVER
SPEC
The power supplies are using more
power than their maximum rating.
Replace the failing power supply, or remove optional devices
from the server.
PS 1 When the LED is lit, the power supply
in bay 1 has failed. When the LED
flashes, an invalid power-supply
configuration has occurred.
If the power supply has failed, call for service. If a configuration
error has occurred, make sure that the power supply is installed
correctly.
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IBM xSeries 336 Type 8837: Option Installation Guide