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

 

[deb_user]

You could just open the laptops up and see what RAM is in them. You'll have to open them up to install the new RAM anyway, and investigating in advance might be useful.

SSD is the way to go these days. I don't own a drive using spinning rust disks, haven't in years.