The only thing that has information is SMBIOS / DMI, and the only way to access this is through /dev/mem.
If you are interested in the fact that the user has too many privileges using sudo, you can add specific permission to run dmidecode by a specific user:
stub example from sudoers file:
Cmnd_Alias DMI_COMMANDS = /usr/sbin/dmidecode -t memory
dmiuser ALL= NOPASSWD: DMI_COMMANDS
dmiuser dmidecode -t memory ( ).