I want to upgrade - RAM upgrade for Acer Aspire 5 - A515-51G-54AH

AntonínGabriel
AntonínGabriel Member Posts: 5 New User
edited December 2022 in Aspire Laptops

Hello,

I have Acer Aspire 5 - A515-51G-54AH which have 1 fixed 4GB RAM and 1 slot for RAM where I have 8GB this one:

Corsair ValueSelect - 8GB (1x 8 GB) / SO-DIMM DDR4 2133 MHz / Non-ECC, Un-registered (un-buffered)


I want to upgrade now to 20GB with this one:

Corsair ValueSelect - 16GB (1x 16 GB) / SO-DIMM DDR4 2133 MHz / Non-ECC, Un-registered (un-buffered)

boths are the same 2133 MHz, Single-Channel CL15


After upgrade the RAM in notebook I see in CPU-Z:

But in task manager I see only 12GB:

And if I exceed the 12GB alocated memory, the blue death screen is shown. There is propably some problem with alocation memory more than 12GB in this notebook? I used windows 10.


What is wrong? Could you please help?


Thansk a lot,

Antonin

[Edited the thread to add the issue detail]

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