Nvidia DGX-2 System Service Manual page 56

Dual-port ConnectX-5 PCI Card/PCI Riser Replacement
b). Remove the right PCI riser card from the motherboard tray.
6. Replace the dual-port PCI card (if applicable).
a). Loosen and remove the screw that secures the PCI card to the riser.
b). Pull the old card out of the riser and install the new card into the riser.
DGX-2 System DU-09224-001 _v09 | 50