What is the maximum RAM capacity of my Acer Aspire A715-42g?is maximum 32GB?

Stevn

Hi guys,

I'd love to upgrade my RAM but I am unsure what the maximum capacity is. The official website of my laptop and Crucial.com both indicate that the maximum supported RAM for my model is 32GB.

However, when I checked the maximum capacity through cmd, it showed me 67108864KB -> 64GB (see photo)

.

Thanks for your input :)

[Edited the thread to add issue detail]

mdlogin

67108864 = 64x1024x1024 which is 64 GB. maxcapacity gives result in KB and computers are binary, so multiply by 1024 to get MB and multiply again by 1024 to get GB.

mdlogin

(I'm guessing you have a A715-42G-R2QH? It looks like most of the A715-42G models might max out at 32GB, but memorystock lists 64 GB max for the R2QH. [Caveat: I've never purchased from memorystock and make no claims about the veracity of their information or quality of their service, one way or another.])

Puraw

https://community.acer.com/en/discussion/697333/what-is-the-maximum-capacity-of-my-acer-aspire-a715-42g

There are two removable RAM slots for up to a 16GB DDR4-3200MHz module per slot for a total of 32GB RAM.

The WMIC command retrieves the number of memory slots and the amount of memory installed on a target computer, not the total RAM capacity. WMIC is not a reliable method to read SODIMM modules, use CPU-Z instead.

mdlogin

According to Microsoft documentation, it is part of the Win32_PhysicalMemoryArray class. The maxcapacity value "comes from the Maximum Capacity member of the Physical Memory Array structure in the SMBIOS information" and is the "Maximum memory size (in bytes[sic*]) installable for this particular memory array". It is not the installed memory. [I have used it on my past three windows computers (2 laptops and a desktop) to determine how much memory I can add.]

*units are actually kilobytes, also in the documentation.

Stevn

https://community.acer.com/en/discussion/comment/1249202#Comment_1249202

No, it's not…it's this one

Stevn

https://community.acer.com/en/discussion/comment/1249205#Comment_1249205

Could you kindly say what info is relevant regarding this?

Puraw

https://community.acer.com/en/discussion/comment/1249292#Comment_1249292

CPU-Z reads that 1x 8GB-3200MHz SODIMM is installed in slot 1 with the Micron part number, if you want to match the module buy exactly the same part number accurate to the last 4 digits that represent the CL. You cannot determine what a motherboard supports for Ram with WMIC or any other command, the only way is to physically test RAM, that is what Acer did (see table above) If you believe your MOBO will support 64GB, contrary what Acer, Kingston and Crucial state, try it with 2x32GB modules.
https://www.kingston.com/en/memory/search/model/103471/acer-aspire-7-a715-42g-xxx

Stevn

https://community.acer.com/en/discussion/comment/1249295#Comment_1249295

Got it, thank you :)