6.3.3 Replacing a hot-plug PSU
Customer Replaceable
Unit (CRU)
Hardware: 5 minutes
Tools: tool-less
Note for servers using CMA (Cable Management Arm)
Regarding of removing PSUs, additional tasks are needed, due to an
interference between CMA and the PSUs.
▶
Push the lock spring inward to unlock the CMA bracket, see Figure 43.
▶
Remove the CMA.
▶
Hold the CMA including cables in the one hand.
▶
Remove the PSU (see Figure 44) and install the new PSU carefully
.
Note for PSU 1:
Remove the PSU 1 carefully while lifting PSU 1 and bringing PSU 1
to the right, in order to avoid interference.
▶
Mount the complete assembly (CMA bracket and the CMA) again into the
rail.
Preliminary steps
▶
"Locating the defective server" on page
97
.
▶
"Locating the defective component" on page 44.
▶
Check which PSU is defective.
A PSU is defective when the PSU status indicator lights orange. For more
information, see "Indicator on hot-plug PSU" on page 414.
▶
Only when replacing a PSU in a non-redundant configuration: "Shutting
down the server" on page 46.
▶
Remove the power cord from the defective PSU, see "Disconnecting the
power cord" on page 47.
Power supply unit (PSU)
128 Upgrade and Maintenance Manual RX4770 M6
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