Thinkpad T520: how to find out which RAM is used here ?

[dhubs]

good day dear linux-experts, hello everyone,

....i have two T520 and one T 420 S and a X220 with the standard RAM. And as i am a big big fan of these robust notebooks i want to add more RAM to it.

i want to add more RAM: how ot find out which one fits best:
i guess its best mehtod is to run the command:

sudo dmidecode --type memory

on the T 420 and the X220 to see which ram is necesary:

sudo dmidecode --type memory

253:0    0 116,2G  0 lvm  /var/snap/firefox/common/host-hunspell
                                          /
sr0              11:0    1  1024M  0 rom 
ubuntu@T420s:~$  sudo dmidecode --type memory
[sudo] Passwort für ubuntu:
# dmidecode 3.4
Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.

Handle 0x0005, DMI type 16, 15 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 0x0006, DMI type 17, 28 bytes
Memory Device
    Array Handle: 0x0005
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 4 GB
    Form Factor: SODIMM
    Set: None
    Locator: ChannelA-DIMM0
    Bank Locator: BANK 0
    Type: DDR3
    Type Detail: Synchronous
    Speed: 1333 MT/s
    Manufacturer: Samsung
    Serial Number: 004AF22C
    Asset Tag: 9876543210
    Part Number: M471B5273CH0-CH9 
    Rank: Unknown

Handle 0x0007, DMI type 17, 28 bytes
Memory Device
    Array Handle: 0x0005
    Error Information Handle: Not Provided
    Total Width: Unknown
    Data Width: Unknown
    Size: No Module Installed
    Form Factor: DIMM
    Set: None
    Locator: ChannelB-DIMM0
    Bank Locator: BANK 2
    Type: Unknown
    Type Detail: None

well - what do you say -is this correct - is this the methd to check out which RAM fits !?
BTW: Do you think that it is a good idea to add a SSD too!?

look forward to hear from you

 

[//////]

BTW: Do you think that it is a good idea to add a SSD too!?

absolutely, ssd (or m2 ssd) will be big upgrade and you will notice that your laptop is faster.

 

[GatorsFan]

Your command listed gives you physical memory details

The kernel also stores memory data in a special file. You can view it using

cat /proc/meminfo

This tells you what process is using how much RAM