Question Samsung 990 Pro running at pcie 4.0 x2 instead of x4

[radzik]

Hi,
I have a problemm, my Samsung 990 pro 1tb doesnt want to run in pcie 4.0 x4, its stuck in x2 and the speeds are half of what they should be.

https://imgur.com/a/iJ4UM5m

View: https://imgur.com/a/iJ4UM5m


I tried reseating the drive and cpu, 7C56v1J3 and 7C56v1I Bios but no change. My mobo doesnt even have m.2 options in Pcie bios settings


Msi B550 gaming plus
ryzen 5 5600x
Samsung 990 Pro 1tb

 

[Lutfij]

Welcome to the forums, newcomer!

Your motherboard has 2x M.2 slots, which one have you dropped the 990 Evo into? What other devices do you have in your build?

I tried reseating the drive and cpu, 7C56v1J3 and 7C56v1I Bios but no change.
Reflash to the beta version BIOS, then clear the CMOS. In order to do the latter, you disconnect from the wall and display, then remove the CMOS battery, then press and hold down the power button for 30secs to drain any residual power, then reseat the battery after 30mins.

 

[SkyNetRising]

I tried reseating the drive and cpu

Clean M.2 drive contacts with eraser.
Make sure drive is properly seated. Gold contact pins should not be visible.

 

[radzik]

Welcome to the forums, newcomer!

Your motherboard has 2x M.2 slots, which one have you dropped the 990 Evo into? What other devices do you have in your build?

I tried reseating the drive and cpu, 7C56v1J3 and 7C56v1I Bios but no change.
Reflash to the beta version BIOS, then clear the CMOS. In order to do the latter, you disconnect from the wall and display, then remove the CMOS battery, then press and hold down the power button for 30secs to drain any residual power, then reseat the battery after 30mins.

Drive is under the cpu where it should be, i already reflashed bios and cleared cmos a few times to be sure, even took apart a whole build and put everything in again to be sure, m.2 slot pins also look good

 

[Gururu]

So slot 1 will support x4 if CPU supports it. Slot 2 only supports PCIe v3x4. I suppose you are using slot 1, but does slot 2 give you same issue?

 

[radzik]

Clean M.2 drive contacts with eraser.
Make sure drive is properly seated. Gold contact pins should not be visible.

Still no change

 

[radzik]

So slot 1 will support x4 if CPU supports it. Slot 2 only supports PCIe v3x4. I suppose you are using slot 1, but does slot 2 give you same issue?

in slot 2 it works in 3.0 x4