542 Upgrade and Maintenance Manual TX300 S7 / RX350 S7
Expansion cards and backup units
9.7.2 Installing a BBU
V CAUTION!
For further safety information, please refer to chapter "Important
information" on page 51.
9.7.2.1 Required tools
● Preliminary and concluding steps: tool-less
● Installing a BBU: tool-less
9.7.2.2 Preliminary steps
Before installing a BBU, perform the following steps:
Ê Disable boot watchdog functionality as described in section "Disabling
SVOM boot watchdog functionality" on page 142.
Ê Shut down the defective server as described in section "Shutting down the
server" on page 71.
Ê Remove the AC power cords from the PSU cable brackets and disconnect
them from the system as described in section "Disconnecting the server
from the mains" on page 72.
Ê When working on a rack-mounted server, extend it out of the rack as
described in section "Extending the server out of the rack" on page 76.
If further required, remove the server from the rack as described in section
"Removing the server from the rack" on page 77.
Ê Open the side / top cover as described in section "Removing the top cover"
on page 79 (rack server) or "Removing the side cover" on page 88 (tower
server).
Ê Remove the air duct as described in section "Removing the system air duct"
on page 100.
Upgrade and Repair Units (URU)
Average task duration: 5 minutes
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