980 pro "insanely" slow write speeds

[Scruffy90]

I just bought a Samsung 980 pro to use with my rig. (All specs in sig).
When I run the benchmark, I get 6.5GB/s reads, but my writes are at 1.1-1.3GB/s. How would I go about troubleshooting this considering I should be a lot closer to the 5GB/s mark in terms of writes?

What i've tried so far:
- Updated bios to latest stable
- Switched m.2 slots on mobo
- updated firmware using samsung magician

[svmlegacy]

10 minutes ago, Scruffy90 said:

I just bought a Samsung 980 pro to use with my rig. (All specs in sig).
When I run the benchmark, I get 6.5GB/s reads, but my writes are at 1.1-1.3GB/s. How would I go about troubleshooting this considering I should be a lot closer to the 5GB/s mark in terms of writes?

What i've tried so far:
- Updated bios to latest stable
- Switched m.2 slots on mobo
- updated firmware using samsung magician

How full is the drive? Being more than 50% full can have a significant impact on write speeds, which gets much worse as it fills further.

[Scruffy90]

6 minutes ago, svmlegacy said:

How full is the drive? Being more than 50% full can have a significant impact on write speeds, which gets much worse as it fills further.

I cloned my 960evo to it so over 50%. I guess i'll have to move the bulk of things off of it and retest

[svmlegacy]

7 minutes ago, Scruffy90 said:

I cloned my 960evo to it so over 50%. I guess i'll have to move the bulk of things off of it and retest

Make sure to give it some time to settle out after you move things off it, the effect won't happen immediately.