238 Upgrade and Maintenance Manual BX924 S4
System board components
© cognitas. Gesellschft für Technik-Dokumentation mbH 2013 Pfad: C:\Programme\FCT\tim_app\tim_local\work\PICHOL\OBJ_DOKU-20569-001.fm
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 91.
10.2.3 Replacing the UFM
10.2.3.1 Required tools
● Preliminary and concluding steps:
– combination pliers and flat nose pliers
● Replacing the UFM:
– Phillips PH0 / (+) No. 0 screw driver
10.2.3.2 Preliminary steps
Before replacing 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.
Field Replaceable Units (FRU)
Average hardware task duration: 10 minutes
Average software task duration: 5 minutes
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