242 Upgrade and Maintenance Manual TX140 S1
Expansion cards and backup units
9.2.4 Replacing the TFM
9.2.4.1 Required tools
● Preliminary and concluding steps: tool-less
● Replacing an TFM: Phillips PH1 / (+) No.1 screw driver
9.2.4.2 Preliminary steps
Before replacing the TFM, perform the following steps:
Ê Disable BitLocker functionality as described in section "Disabling BitLocker
functionality" on page 93.
Ê If applicable, open the rack door as described in section "Opening the rack
door" on page 61.
Ê Locate the desired server as described in section "Locating the defective
server" on page 54.
Ê Shut down the server as described in section "Shutting down the server" on
page 61.
Ê Remove the AC power cord from the cable tie and disconnect it from the
system as described in section "Disconnecting power cords" on page 63.
Ê Remove all external cables from the expansion card to be removed.
Ê When working on a rack-mounted server, extend it out of the rack as
described in section "Extending the server out of the rack" on page 65.
If further required, remove the server from the rack as described in section
"Removing the server from the rack" on page 66.
Ê Bring the server to its horizontal position.
Ê Open the side / top cover as described in section "Removing the top cover"
on page 67 (rack server) or "Removing the side cover" on page 71 (tower
server).
Upgrade and Repair Units (URU)
Average task duration: 10 minutes
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