BX924 S4 Upgrade and Maintenance Manual 231
System board components
10.2 USB Flash Module (UFM)
10.2.1 Installing the UFM
10.2.1.1 Required tools
● Preliminary and concluding steps: tool-less
● Installing the UFM: Phillips PH1 / (+) No. 1 cross-head screwdriver
10.2.1.2 Preliminary steps
Before installing the UFM, perform the following steps:
Ê Disable BitLocker functionality as described in section "Disabling BitLocker
functionality" on page 66.
Ê Disable boot watchdog functionality as described in section "Disabling boot
watchdog functionality" on page 67.
Ê If applicable, open the rack door as described in section "Opening the rack
door" on page 51.
Ê Locate the desired server blade as described in section "Locating the
defective server blade" on page 43.
Ê Shut down the server blade as described in section "Shutting down the
server blade" on page 52.
Ê Remove the server blade from the system unit as described in section
"Removing the server blade from the system unit" on page 54.
Ê Open the server blade as described in section "Opening the server blade"
on page 55.
Field Replaceable Units (FRU)
Average hardware task duration: 5 minutes
Average software task duration: 5 minutes