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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 service technician only)," that step must be performed only by a
trained service technician.
Symptom
A blower module is not working. 1. Make sure all power cords are plugged into 220-Volt power sources and that
Media tray problems
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 service technician only)," that step must be performed only by a
trained service technician.
Symptom
The optical drive is not
recognized by any blade server.
Light path diagnostic LEDs
Light path diagnostic LEDs are a system of LEDs on the BladeCenter unit and the
BladeCenter components that can be used to identify system errors. If the front or
rear system-error LED of the BladeCenter unit is lit, one or more error LEDs on the
BladeCenter components also might be lit. These LEDs help identify the cause of
the problem.
Diagnosing problems using diagnostic LEDs
To identify the component that is causing the error, locate the lit error LED on that
component.
The following example shows how to use the LEDs to diagnose a system error:
1. Note that the BladeCenter system-error LED is lit on the system LED panel.
2. Locate the module or blade server that also has error LED (see "BladeCenter
44
BladeCenter H Type 8852, 7989, and 1886: Installation and User's Guide
Action
the power sources are working.
2. Reseat the blower module.
3. Replace the blower module.
Action
1. Reseat the following components:
a. Media tray
b. Optical drive
2. Replace the optical drive.
components, controls, and LEDs" on page 12 for the location of error LEDs; see
the documentation that comes with your blade server for the location of error
LEDs on the blade server).
v If the component is a module, replace the module.
v If the component is a blade server with its system error LED lit, follow the
instructions in the documentation that comes with the blade server to isolate
and correct the problem.
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