TX140 S1 Upgrade and Maintenance Manual 151
Power supply
V CAUTION!
Never leave the bay for the power supply module empty for more than
two minutes during operation. Otherwise, excessive temperatures could
damage system components.
6.3.2.4 Installing the new power supply module
Ê Install the new PSU module as described in section "Installing the power
supply module" on page 147.
6.3.2.5 Concluding steps
Perform the following procedures to complete the task:
Ê Connect the AC power cord to the new power supply unit and secure it with
a cable tie as described in section "Connecting the server to the mains" on
page 90.
Ê Only when replacing a power supply module in a non-redundant
configuration: Switch on the server as described in section "Switching on the
server" on page 91.
Ê If applicable, close the rack door as described in section "Closing the rack
door" on page 92.
Ê If BitLocker functionality is used and has been disabled before starting the
maintenance task, re-enable BitLocker as described in section "Enabling
BitLocker functionality" on page 116.
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