DELL fatal error was detected after Proxmox install

upgrade your firmware.
I did it, upgraded idrac, bios, lifecycle controller and raid controller but it didn't solve the problem. In my case HPE network cards can be the reason too(not properly recognized by the BIOS), so I'm going to replace them with Dell ones. I hope that's gonna make it work.
 
I did it, upgraded idrac, bios, lifecycle controller and raid controller but it didn't solve the problem. In my case HPE network cards can be the reason too(not properly recognized by the BIOS), so I'm going to replace them with Dell ones. I hope that's gonna make it work.
me too :) no good at the moment, i just hope it will get fixed in time
 
I had issues with the onboard Broadcom NICs on my Dell PowerEdge T440 (driver instability). The solution that worked for me was:
  1. In BIOS → System BIOS / Integrated Devices → Embedded NIC1/2, I disabled both onboard Broadcom ports.
  2. Installed an Intel PCIe NIC in one of the available slots.
  3. Verified that the new card was detected in BIOS and the OS, then installed the Intel drivers.

After this change, the system became stable and networking works without problems. The Broadcom interfaces are no longer visible to the OS, and the Intel card is handling all network traffic.

cheers