Welcome to our peer-to-peer forums, where owners help owners. Need help now? Visit eSupport here.

English Community

Lenovo NotebooksLenovo P, Y and Z series Notebooks
All Forum Topics

7 Posts



26 Signins

30 Page Views

  • Posts: 7
  • Registered: ‎01-06-2021
  • Location: Chile
  • Views: 30
  • Message 1 of 4

Z400 RAM & SSD Upgrade? it's possible?

2021-07-25, 21:36 PM

Hello. I have the z400 laptop model 20201, for about 6 years.

He currently has win8.1 and factory had win 8. He has win 8.1 because windows for a while let the upgrade be done for free for security reasons.

Currently has:

6 GB of RAM. 2 x 3gb ram 1600 MHz SODIMM slots

Hard drive already in not very good condition, I think 1T


1. I want to buy RAM, I think this model allows up to 16 GB of RAM. but I don't know which one I can buy? only 1600MHZ SODIMM?

Can it be changed or is it welded?

I would buy it in this store: https://www.pcfactory.cl/memorias-notebook?categoria=100 or else in Amazon

What do you recomend me?



2. SSD disk ... I want to remove the disk in bad condition hdd and install in the new disk SSD win 8.1 or better still install windows 10

I don't know, which one could I buy? what dou you recommend? I see that there are many and I do not know which one fits the notebook in question. neither which is more recommendable. I am interested that it lasts many years




3. How to install the SSD and RAM?

Do you just take out the old and put on the new?



4. Bonus: When I remove the HDD and ram, do I lose the win8 license for that disk or is it kept because the operating system is inside that disk? I ask if I would like at some point to install that disk in case I can recover what I have on it. Nothing important, but to know



Hola. Tengo el laptop z400 modelo 20201, desde hace unos 6 años.

Actualmente tiene win8.1 y de fabrica tenia win 8. Tiene win 8.1 porque windows un tiempo dejo hacer el upgrade por seguridad de manera gratuita.

Actualmente tiene:

6 GB de RAM. 2 ranuras de 3gb ram 1600 MHz SODIMM

Disco Duro ya en no muy buen estado, creo que de 1T


1. Quiero comprar RAM, creo que este modelo permite hasta 16 GB de RAM. pero no sé cual puedo comprar? solo de 1600MHZ SODIMM?

¿Se puede cambiar o viene soldada?

La compraria en esta tienda: https://www.pcfactory.cl/memorias-notebook?categoria=100 o sino en Amazon

¿Cual me recomiendan?



2. Disco SSD ... Quiero sacar el disco en mal estado hdd e instalar en el nuevo disco SSD win 8.1 o mejor todavia instalar windows 10

No se, ¿cuál podria comprar? que me recomiendan? veo que hay muchos y no se cual le calza al notebook en cuestion. tampoco cual es mas recomendable. me interesa que dure muchos años




3. ¿Cómo instalar el SSD y la RAM?

Simplemente se saca lo antiguo y se pone lo nuevo?



4. bonus: Al sacar el HDD y ram pierdo la licencia de win8 para ese disco o se mantiene porque está el sistema operativo dentro de ese disco? Pregunto en el caso que quisiera en algún momento a instalar ese disco por si volver a recuperar lo que tengo en el. Nada importante, pero por saber




2835 Posts



346 Signins

14411 Page Views

  • Posts: 2835
  • Registered: ‎03-11-2020
  • Location: Greece
  • Views: 14411
  • Message 2 of 4

Re:Z400 RAM & SSD Upgrade? it's possible?

2021-07-26, 10:22 AM

Hi LucienL,


Welcome to the Community Forums.


Could you please provide the community with the Machine Type & Model (MTM ex: 90DG0023US) of your device. This will help us track down the configuration and specs of your specific machine so that we can better assist you.
How to locate MTM






Did someone help you today? Press the thumbs-up icon below to thank them with a Kudos!!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

Please don't ask me questions by Private Message; questions belong in the forums.


1 Posts



1 Signins

10 Page Views

  • Posts: 1
  • Registered: ‎07-31-2021
  • Location: Germany
  • Views: 10
  • Message 3 of 4

Re:Z400 RAM & SSD Upgrade? it's possible?

2021-07-31, 19:36 PM

try to check the kingston website for RAM. Unfortunately if you want kingston ram please buy two 8GB of them because two different manufacturer make problems.




and crucial:






7 Posts



26 Signins

30 Page Views

  • Posts: 7
  • Registered: ‎01-06-2021
  • Location: Chile
  • Views: 30
  • Message 4 of 4

Re:Z400 RAM & SSD Upgrade? it's possible?

2021-08-04, 0:23 AM

ideapad Z400 model 20201. nowadays only have an HDD 5400rpm

I see a sticker with S/N  numbers and P/N numbers... that will help?


What SSD would be ok to install windows 10? how many Gb?

Should you remove the old HDD, put the new SSD and install windows? that simple?

and about the RAM ... does it have to be of that frequency or can it be another? I know that you should buy 2 of the same .. as Dewo86 says, 2 sticks of 8gb each. After installing it, will the system recognize them automatically?


Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop





No, I don’t want to share ideas Yes, I agree to these terms