Samsung 970 EVO Plus performing slowly in second SSD slot on my AN515-45

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notLozo
notLozo Member Posts: 1 New User
edited 3:03PM in Nitro Gaming
Screenshot 2025-07-27 191402.png Screenshot 2025-07-27 192554.png Screenshot 2025-07-27 222751.png Screenshot 2025-07-27 222802.png

Just want to ask, guys. Why is my Samsung 970 EVO Plus performing so slowly in terms of read/write speeds? It’s supposed to reach around 3,500MB/s, but when I checked it twice using a benchmark tool (crystaldiskmark & Samsung Magician), the results were almost identical and much lower. Surprisingly, the pre-installed SSD on my laptop is even faster. I just bought and installed this drive in the same shop.

My laptop is AN515-45-R2NV.

[Edited the thread to add model name to the title]

Answers

  • Vicezz
    Vicezz Member Posts: 10

    Tinkerer

    One slot is PCIe 4.0 and the other slot is PCIe 3.0. I think that is the reason.