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The following illustration shows the rear view for the currently available power
modules.
Power module LEDs: These LEDs indicate the condition of the power module. For
additional information, see “Identifying problems using the Light Path Diagnostics
feature” on page 29.
v AC power: When this green LED is lit, ac input to the power module is present
and within specifications. During typical operation, both the ac and dc power
LEDs are lit. For any other combination of LEDs, see “Identifying problems using
the Light Path Diagnostics feature” on page 29.
v DC power: When this green LED is lit, the dc output from the power module to
the other components and blade servers is present and within specifications.
During typical operation, both the ac and dc power LEDs are lit. For any other
combination of LEDs, see “Identifying problems using the Light Path Diagnostics
feature” on page 29.
v Power module error LED (2320-watt power modules only): When this amber
LED is lit, it indicates that an error has been detected in the power module.
When this LED is lit, the BladeCenter unit system error LED is also lit.
Management module: The type of management module that is installed in your
BladeCenter unit depends on the BladeCenter unit model and devices that are
installed.
v A BladeCenter unit that has a media tray with a diskette drive can use either a
management module or an advanced management module, depending on which
devices are installed in the BladeCenter unit.
v A BladeCenter unit that has a media tray without a diskette drive must use an
advanced management module.
v If 2320-watt power modules are installed in the BladeCenter unit, you must use
an advanced management module.
v See the documentation that comes with your BladeCenter device to determine if
a specific management module type is required to support the device.
See the documentation for your management module for additional information and
instructions.
16 BladeCenter E Type 8677 and 1881: Hardware Maintenance Manual and Troubleshooting Guide