BX920 S4
Upgrade and Maintenance Manual
155
Expansion cards and backup units
7.2.6
Removing the FBU (Flash Backup Unit)
7.2.6.1
Required tools
●
Preliminary and concluding steps: tool-less
●
Installing FBU: tool-less
7.2.6.2
Preliminary steps
Before removing the FBU, 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
Ê
Remove the server blade from the system unit as described in section
"Removing the server blade from the system unit" on page 55
.
Ê
Open the server blade as described in section
.
Upgrade and Repair Units (URU)
Average hardware task duration: 5 minutes
Average software task duration: 5 minutes