Linux check memory

Copy#dmidecode --type memory

        Memory Device
        Array Handle: 0x0007
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 8192 MB
        Form Factor: DIMM
        Set: None
        Locator: ChannelB-DIMM1
        Bank Locator: BANK 3
        Type: DDR3
        Type Detail: Synchronous
        Speed: 1333 MHz
        Manufacturer: Kingston
        Serial Number: 7A23C804
        Asset Tag: 9876543210
        Part Number: 99U5471-047.A00LF 
        Rank: 2
        Configured Clock Speed: 1333 MHz