Dell POWEREDGE C6105 - Manual (Page 129)

Installing System Components | 129
Figure 3-27. Removing and Installing the Expansion-Card Bracket
1 screw (4) 2 expansion-card bracket
3 system-board assembly
5 Remove the four screws that secure the Mellanox card assembly. See
Figure 3-28.
6 Lift the Mellanox card assembly away from the mezzanine-card bridge
board on the system board. See Figure 3-28.