850 EVO running at SATA II speed

e.wilson6595

Prominent
Jan 4, 2019
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In my laptop I have an NVMe as my main OS drive and an 850 evo as my secondary drive. CrystalDiskMark shows speeds half of what you'd expect from an 850 evo, and Speccy says that the drive is using SATA II transfer speeds. Is this a case of both my drives sharing bandwidth and slowing each other down?

Here's a picture of my configuration: https://imgur.com/a/rH6h6
 


Model is MSI GP62MVR 6RF. I don't know the exact motherboard model but I know for a fact that it supports SATA III
 


There are no options in the BIOS for SATA settings. When I select boot order options, the SATA drive doesn't even show up strangely (as if it doesn't even recognize the drive).