Note for servers using CMA (Cable Management Arm)
Regarding of replacing power supply units, additional tasks are needed, due to
an interference between CMA stopper and the power supply units.
Ê Push the lock spring inward to unlock the CMA stopper (see figure 31).
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 32).
Ê Hold the CMA stopper, the crossbar and the CMA including cables in the one
hand.
Ê Remove the power supply unit (see figure 33) and install the new power
supply unit carefully.
Ê Mount the complete assembly (CMA stopper, the crossbar and the CMA)
again into the rail.
6.3.3.1 Preliminary steps
Ê "Locating the defective server" on page 43
Ê "Locating the defective component" on page 45
Ê Check which power supply unit is defective.
A power supply unit is defective when the indicator (1) in figure 228 lights
orange. For more information see section "Connectors and indicators" on
page 300.
Ê Only when replacing a power supply unit in a non-redundant configuration:
"Shutting down the server" on page 45
Ê Remove the power cord from the defective power supply unit as described
in section "Disconnecting the server from the mains" on page 46
6.3.3.2 Removing the defective hot-plug power supply unit
Ê Remove the power supply unit as described in section "Removing a hot-plug
power supply unit" on page 102.
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