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Brand new Samsung 970 EVO Plus 500GB running on PCIE 3 x2 instead x4!? Please help

SumTingWong
Level 7
Hello yall, so i manage to save money to get myself a nice speedy Samsung 970 EVO Plus 500GB today. But the problem is my 970 EVO Plus is running on PCIE 3 x2 instead 4 report by Samsung Magician and CrystalDiskinfo! Speed read and write are in 1700ish MB/s. Anyone knows how to fix this?! I have the 970 EVO Plus install in M2_1 slot underneath cpu. And according to the manual, that slot is for pcie 3 x4 nvme drive. The drive has no data on it btw.

Windows 10

ASUS ROG Strix X470-F

Ryzen 7 3700x

RX 590

4 sata 3 drives and 1 cd/dvd sata. Total is 5 sata devices.
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1 REPLY 1

criznittle
Level 8
SumTingWong wrote:
Hello yall, so i manage to save money to get myself a nice speedy Samsung 970 EVO Plus 500GB today. But the problem is my 970 EVO Plus is running on PCIE 3 x2 instead 4 report by Samsung Magician and CrystalDiskinfo! Speed read and write are in 1700ish MB/s. Anyone knows how to fix this?! I have the 970 EVO Plus install in M2_1 slot underneath cpu. And according to the manual, that slot is for pcie 3 x4 nvme drive. The drive has no data on it btw.

Windows 10

ASUS ROG Strix X470-F

Ryzen 7 3700x

RX 590

4 sata 3 drives and 1 cd/dvd sata. Total is 5 sata devices.


Try removing the other SATA drives one by one and see if the lanes aren't freed up.

This might help: https://www.reddit.com/r/Amd/comments/jxlkuh/pcie_lanes_rog_strix_x470f_gaming/

or this: https://www.reddit.com/r/Amd/comments/8rp634/questions_about_the_asus_rog_strix_x470f/

https://www.guru3d.com/articles_pages/asus_rog_strix_x470_f_gaming_review,19.html