The dmidecode command gives you all informations available about your memory. With the special parameter “-t 16”, you can see the maximum (physical) memory that your server can have: $ dmidecode -t 16 # dmidecode 2.8 SMBIOS 2.4 present. Handle 0x1000, DMI type 16, 15 bytes Physical Memory Array Location: System Board Or Motherboard Use: …