Getting infos about the RAM that can be added to a Notebook

good day, dear Endeavor-experts,

…i have two T520 (beside a T420S and also 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

Let us have a closer look at the T420 now:

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

Code: Select all

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

I use a far easier method to determine what to buy for a RAM upgrade. I open the box, look at what’s in there, and buy more like (or larger than) it. But yes, you need a DDR3-1333 SODIMM.

As for SSD, I’m guessing you’re referring to replacing a SATA hard-disk with a SATA SSD? Completely worth it. No question. Just do it.