Dell EMC PowerEdge R750 Installation And Service Manual page 215

3. Remove the BOSS S2 module. To remove the BOSS S2 controller card module, see
to 8.
4. Install the BOSS S2 module blank.
NOTE: Removal of the BOSS S2 card carrier does not require the system to be powered off. System shutdown is only
required when removing the BOSS S2 module.
NOTE: Disconnect the BOSS signal cable and the BOSS power cable before lifting the module from the system.
removing the BOSS S2 module
Upgrade Kits
steps 5
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