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6.2.3
Replacing a PSU
Customer Replaceable Unit
(CRU)
Tools: tool-less
V
CAUTION!
When replacing a PSU in a non-redundant PSU configuration, the
●
server must be switched off first.
6.2.3.1
Preliminary steps
"Locating the defective server" on page 49
Ê
"Locating the defective component" on page 51
Ê
Ê Check which PSU is defective.
A PSU is defective when the PSU status indicator lights orange. For more
information, see section
Ê Only when replacing a PSU in a non-redundant configuration:
down the server" on page 52
Ê Remove the power cord from the defective PSU, see section
the power cord" on page
6.2.3.2
Note for servers using CMA (Cable Management Arm)
Regarding of replacing PSUs, additional tasks are needed, due to an
interference between CMA stopper and the PSUs.
Ê Push the lock spring inward to unlock the CMA stopper (see figure 66).
V
CAUTION!
In case of not enough space at the under side, unlock the CMA
stopper of the server below and pull out the CMA to the rear side
Ê Remove the CMA stopper with the mounted crossbar (see figure 67).
Ê Hold the CMA stopper, the crossbar and the CMA including cables in the one
hand.
TX2550 M4
"Indicators on PSUs (slide-in units)" on page
53.
Upgrade and Maintenance Manual
Power supply unit (PSU)
Hardware: 5 minutes
"Disconnecting
512.
"Shutting
147
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