Samsung SSD 980 PRO extreme slow write speed (1100 mb/s)

[userYwowh3mtHW]

Did several tests, any suggestions? 

[userknefcpP17W]

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@userYwowh3mtHW wrote:

Did several tests, any suggestions? 

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I have the same problem. Ok read speeds, but crappy write speeds compared to specs given.

I have tried both Windows & Samsung drivers - same results.

CPU: AMD Ryzen 5950x cpu, MB: ASUS Crosshair Dark Hero, Memory: G.Skill 4x16Gb c14, 3600Mhz

Motherboard chipsets all updated.

[user4XZrAv4Ygb]

how would you have tried with samsung driver when the samsung nvme driver doesn't even support 980 pro

[userDtDTUJK0By]

+1 on the issue. 5900X on a B550 motherboard, 980 Evo Pro connected to PCIe 4.0.

Windows 10 64 bit, everything updated to the latest version. 

Samsung Magician gives the expected read speed but write speeds are terrible, hovering around the 1.1-1.2K mark. 

I've been researching this for a while and it would appear that the benchmark seems to choose an 'unfavorable interval' that gives an ultimately false reading. It's also supposed to be affected by how much data you have on the drive. 

Anyhow, it'd be fantastic if Samsung Magician was updated to properly benchmark the drive. 

[useryGStV3gKCN]

Same issue with my 500GB, I have a 1TB too which works fine, both same firmware.

I even deleted half the files on the C: ( the 500GB ) to make sure it was not the excuse of 'its too full, and NVME slows down when full

[userz13g5e1xPJ]

I had the same problem. I fixed it by using the windows Defrag and Optimize Drive. 

Type Optimize in the search bar in windows. 

Click on the drive and then click optimize. 

I went from 2000mb/s write to 4000mb/s. Still not the peak performance but much better. I also have a empty 980pro 1tb in my second m.2. slot and it hasnt had this issue but i also dont have anything stored on it right now. 

[useroLYde0uQGf]

Same issue here, disk was working normally when i bought,  but now writes very slow. All diagnostic tests are passing.