Meaning: The system has detected that the NVRAM is potentially failing. There has been an excessive amount of PCI or Memory errors. The nvram tables 'nvramProperties' and 'nvramStats' may provide for information on why the NVRAM is failing. What to do: check the status of the NVRAM after reboot, and replace if the errors continue.
Sources for this description
Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community)