ITPUB

Mar 21, 2019 · Operations

How to Reveal a Missing Mellanox 25G NIC in UEFI on Dell PowerEdge C6420

When upgrading a Linux OS on a Dell PowerEdge C6420 via UEFI, the Mellanox 25G network adapter disappears from Device Settings, and this guide walks you through using the Mellanox Firmware Tools to enable the NIC with detailed commands, screenshots, and hardware requirements.