A26361-K863-Z102-8-7619
Rev. 8.0
119
The Power Supply Concept
Power Supply Unit (PSU)
11.1.1 Replacing a Power Supply Unit
If a power supply unit fails, the amber front identify LED on the front panel of the
system blinks. The defective power supply unit can be replaced without turning
the server OFF.
V
CAUTION!
If a system error has occurred and the front identify/fault LED is blinking,
the error must be resolved, before adding or removing any additional
components.
V
CAUTION!
Because of chassis airflow disruption, the power supply unit slot should
not be vacant and/or not covered for more than five minutes when the
system power is ON. Exceeding the five-minute limit may damage
components.
V
CAUTION!
If one power supply unit has failed, do not remove front fan module!
Ê
Look at the FAN LED (2) on the back side of the system (see figure 76 on
page 118) to determine which power supply unit is defective.
Ê
Disconnect first the power supply cable of the defective PSU from the
mains.
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