Is RAM expandable in my laptop

[vivek07]

I wanted to upgrade my RAM and i've installed into the slot which earlier had 4GB ram along with that i added another RAM of 4GB, even after inserting i checked the BIOS menu it seems to show only 4GB RAM to reconfirm i had to check the Properties window even there it was 4GB..
My question here is my laptop compatible for expansion of not

[banhien]

@vivek07

Is it an  HP Notebook - 15-ac636tu, you need to know what is the model/product of your machine.  its specs :

     https://support.hp.com/au-en/document/c04919812

It has Two non-customer-accessible/upgradable memory module slots (Intel Core processors)
DDR3L-1600 dual channel support. Supports up to 8 GB of system RAM in the following configurations:

• 8192-MB total system memory (8192×1) or (4096×2)
• 6144-MB total system memory (4096×1) + (2048×1)
• 4096-MB total system memory (4096×1) or (2048×2)
• 2048-MB total system memory (2048×1)

Probably it is out of warranty now and you can ADD 1 stick of 4GB of RAM to your machine to make 8GB using the following part

   4-GB (PC3L, 12800, 1600-MHz)  part # 691740-005

Or use CPU-Z tool to find out the brand and specs of the existing RAM and order a same one. You can download CPU-Z tool from

       https://www.cpuid.com/softwares/cpu-z.html

Regards.