dmidecode --type memory
# dmidecode 2.11 SMBIOS 2.7 present. Handle 0x1000, DMI type 16, 23 bytes Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: Multi-bit ECC Maximum Capacity: 1536 GB Error Information Handle: Not Provided Number Of Devices: 24 Handle 0x1100, DMI type 17, 34 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: 72 bits Data Width: 64 bits Size: 16384 MB Form Factor: DIMM Set: 1 Locator: DIMM_A1 Bank Locator: Not Specified Type: DDR3 Type Detail: Synchronous Registered (Buffered) Speed: 1333 MHz Manufacturer: 00CE04B300CE Serial Number: 13DA8CB1 Asset Tag: 03133621 Part Number: M393B2G70BH0-YH9 Rank: 2 Configured Clock Speed: 1333 MHz Handle 0x1101, DMI type 17, 34 bytes