Reset/Clear BIOS using the Jumper on the Mobo, or remove the Button cell on the mobo and power on the machine after a min or so shutdown the machine put in the battery again…
He has already mentioned that he is not able to access BIOS,
And the Chassis Intrusion Check is disabled in BIOS as Default settings…
And thats why i have mentioned resetting the BIOS will disable the Chassis intrusion
and he will be able to Access BIOS too…