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[SOLVED] My Samsung SSD 970 PRO is running at slow speeds

Jun 14, 2020
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Hello guys, I've read a bunch of threads but I still can't figure out why my Samsung 970 PRO SSD runs two times slower than advertised. The temperature is at healthy 36 degrees, using a proper PCIe 3.0 x2 | x4 slot (M.2) in the middle of my motherboard. NVMe drivers from Samsung are installed.

Motherboard: Asus Prime Z370-A
CPU: Intel i5-8400
OS: Windows 10 Pro x64

The advertised speed should be above 3 GB/s for sequential read/write. What's happening?

 
Jun 14, 2020
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Ok, I found the answer myself. Had two flick a switch in BIOS as well for the M.2 slot, changed from x2 to x4 and the speed doubled.
 
Jun 14, 2020
3
0
20
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Ok, I found the answer myself. Had two flick a switch in BIOS as well for the M.2 slot, changed from x2 to x4 and the speed doubled.
 

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