Dell EMC PowerEdge R650 Installation And Service Manual page 114

Figure 96. Removing the BOSS S2 module
7. Remove the BOSS power cable and BOSS signal cable from the BOSS S2 controller card module.
Figure 97. Removing the BOSS power cable and BOSS signal cable
8. Using the Phillips #1 screwdriver, remove the M3 x 0.5 x 4.5 mm screw that secures the BOSS cover on the BOSS S2
controller card module. Slide the BOSS cover out from the BOSS S2 controller card module.
114 Installing and removing system components