Acer A515-41G-12AX RAM upgrade to 16 GiB

leonardopsantos
leonardopsantos Member Posts: 17 Troubleshooter
edited October 2023 in 2020 Archives
Hi there! I tr4ied replacing the ADATA AO1P21FC8T1 DDR4 RAM module with a Corsair Value Select Series 16GB (1x16GB) DDR4 2133MHz (PC4-17000) CL15 DIMM.

https://www.corsair.com/ca/en/Categories/Products/Memory/Mainstream-Memory/Corsair-Memory-16GB-%281x16GB%29-DDR4-SODIMM-2133MHz-C15-Memory-Kit/p/CMSO16GX4M1A2133C15

After physically replacing the module, I went in the BIOS and it correctly detected 16384 MiB of RAM. Next, I booted on Windows 10. On Windows, I noticed that instead of having 555 MB of "Hardware reserved" memory, I had 8 GB! Task manager shows the amount of RAM as 16 GiB, but only 8 GiB as usable.

I upgraded the BIOS to v1.09, the same thing. There *IS NOT* a setting to change the amount of RAM reserved for the video card.

I tried the "msconfig" config setting, "Maximum Memory" is *not* ticked.

If I go to the Acer product page for my laptop, it says the maximum amount of supported RAM is 16 GiB:

https://www.acer.com/datasheets/2017/4876/A515-41G/NX.GPYAA.003.html

This model seems to have the particularity of having *ONLY ONE* RAM slot. If I open the cover, there's only ONE ram slot there and Windows Task Manager shows "Slots used" as "1 of 1", so adding a second 8GiB RAM module is not possible.

Has anyone had any luck upgrading this particular laptop model to 16 GiB of RAM?

I'm guessing that the problem is that the original memory is single-rank, and although I could not find if the replacement memory is dual-rank, I couldn't find any single-rank 16 GiB DDR4 modules, so I'm assuming the replacement memory is dual-rank. I don't know if this is an issue or not.

Thanks!

Best Answer

Answers