Fujitsu PRIMERGY TX2550 M4 Upgrade And Maintenance Manual page 187

Hard disk drive (HDD) / solid state drive (SSD)
Figure 103: Removing the intrusion switch holder (B)
Ê Slide back the intrusion switch holder until it disengages from the HDD bay
top cover (1).
Ê Remove the intrusion switch holder (2) and set aside.
Ê Leave the intrusion switch cable connected to the system board.
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TX2550 M4 Upgrade and Maintenance Manual