140
Upgrade and Maintenance Manual
BX920
S4
Expansion cards and backup units
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7.1.4
Replacing mezzanine cards
7.1.4.1
Required tools
●
Preliminary and concluding steps: tool-less
●
Replacing expansion cards: tool-less
7.1.4.2
Preliminary steps
V
Note on network settings recovery
When replacing network controllers or onboard CNA, network
configuration settings in the operating system will be lost and replaced
by default values. This applies to all static IP address and LAN teaming
configurations.
Ensure to note down your current network settings before replacing the
controller.
Before replacing an mezzanine card, perform the following steps:
Ê
Disable BitLocker functionality as described in section
Ê
Disable boot watchdog functionality as described in section
watchdog functionality" on page 67
Ê
If applicable, open the rack door as described in section
.
Ê
Locate the desired server blade as described in section
defective server blade" on page 45
Ê
Shut down the server blade as described in section
.
Upgrade and Repair Units (URU)
average hardware task duration: 10 minutes
Average software task duration: 5 minutes