ARS-110M-NR; We have such system with NO OS installed.
Could not find the "Reset Intrusion" button inside the Sensor Readings Page. Tried below all failed.
SUM execution failed (UEFI) and IPMICFG execution failed
How to reset chassis intrusion flag?
Actually, as long as the lid/cover is installed correctly on the physical server, the chassis intrusion flag is supposed to be cleared on its own.
For temporary work-around, please shutting the system down, removing power for 30 seconds and then powering it back up.
The chassis intrusion flag will be cleared.