SS2 M2 Gen 4 replacement for Laptop Acer Aspire 5 A515-57-727C

leandroct

I bought an Acer Aspire 5 A515-57-727C Laptop and I need to upgrade it's small 250 GB SSD. I bought an V-NAND SSD 1080 PRO PCIe 4.0 NVMe M2 SSD with 4TB from China. It's speed specs are 7450 MB/s write and 6900 MB/s read. The SSD worked, but using the software CristalDiskMark 8.0.5, the SSD reached only 1620 MB/s of read speed and 736 MB/s of write. The original SSD (Generation 3, installed originally at the Gen 4 slot) is faster than it (4889MB/s read and 2033 MB/s write). This laptop model has any limitation that justify this smaller speed from a Gen 4 compared to a Gen 3? Or the problem would be the bad quality of the SSD M2 I bought?

Thanks!

Puraw

https://community.acer.com/en/discussion/707857/ss2-m2-gen-4-replacement-for-laptop-acer-aspire-5-a515-57-727c

Did you try the other slot (picture), I recommend getting a Samsung 990Pro 4TB without the heatsink model as the laptop is slim.

leandroct

I put the SSD at the generation 3 slot, as you aked for, and it remains slow, as expected.

I think that there is no doubt the SSD has bad quality.

AnhEZ28

@leandroct

I suggest you return and refund that SSD since it doesn't have any branding or specific specifications. It is a bad quality SSD so it cannot reach the Gen 4 speed.

leandroct

I put a Movespeed SSD Nvme M2 Gen 4 1TB 7450 MBps and now its ok.