Nvidia DGX-2 SYSTEM - 8.2 Overview of BMC Controls

Optional Dual-port ConnectX-5 PCI Card Installation
DGX-2 System DU-09224-001 _v09|57
7. Install the left PCI riser.
a). Replace the left PCI riser card on the motherboard tray.
b). Tighten the black screw on the left PCI card riser.