Question Samsung evo 970 write speeds low

[Christopher Magnussen]

i switched out an ssd from my gp72vr 6rf an MSI laptop with a Samsung evo 970
for some reason im getting low write speeds when running samsung magician benchmarks below 1000MB/s in write speed

 

[USAFRet]

"switched out "

Details, please. From what, to what?
What motherboard is this on?

 

[Christopher Magnussen]

Operating System
Windows 10 Home 64-bit
CPU
Intel Core i7 6700HQ @ 2.60GHz 88 °C
Skylake 14nm Technology
RAM
16.0GB Dual-Channel Unknown @ 1066MHz (15-15-15-35)
Motherboard
Micro-Star International Co. Ltd. MS-179B (U3E1)
Graphics
Generic PnP Monitor (1920x1080@60Hz)
Intel HD Graphics 530 (MSI)
3071MB NVIDIA GeForce GTX 1060 (MSI) 71 °C
SLI Disabled
Storage
931GB Hitachi HGST HTS721010A9E630 (SATA ) 52 °C
931GB Samsung SSD 970 EVO 1TB (Unknown (SSD))
Optical Drives
HL-DT-ST DVDRAM GUD0N
Audio
Realtek High Definition Audio

dont have the name for the original SSD i removed i only remember it was an m.2 sata SSD i used Speccy to get this