cRIRIc

sudo dmidecode -t memory

# dmidecode 3.6
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0028, DMI type 16, 23 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: None
        Maximum Capacity: 16 GB
        Error Information Handle: Not Provided
        Number Of Devices: 2

Handle 0x0029, DMI type 17, 34 bytes
Memory Device
        Array Handle: 0x0028
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 4 GB
        Form Factor: DIMM
        Set: None
        Locator: DIMM1
        Bank Locator: BANK 0
        Type: DDR3
        Type Detail: Synchronous
        Speed: 1600 MT/s
        Manufacturer: Kingston
        Serial Number: CE1829DA
        Asset Tag: 9876543210
        Part Number: HP698650-154-HYAG 
        Rank: 1
        Configured Memory Speed: 1600 MT/s

Handle 0x002B, DMI type 17, 34 bytes
Memory Device
        Array Handle: 0x0028
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 4 GB
        Form Factor: DIMM
        Set: None
        Locator: DIMM3
        Bank Locator: BANK 2
        Type: DDR3
        Type Detail: Synchronous
        Speed: 1600 MT/s
        Manufacturer: Kingston
        Serial Number: CD1862D6
        Asset Tag: 9876543210
        Part Number: HP698650-154-HYAG 
        Rank: 1
        Configured Memory Speed: 1600 MT/s

Valid type keywords are:
  bios
  system
  baseboard
  chassis
  processor
  memory
  cache
  connector
  slot