Question Slow NVMe Write

[CognitionFailure]

I have twoPCIe x4 drives, and both are reading very fast (sequential read 3500 MB/s) but their write speeds are very low, SqW 1000 and 550.

The faster one is 1 TB and the slower one is 500 GB. Both are inland brand.

Board: x570 Crosshair 8
CPU: Ryzen 3900X

Have confirmed both are running in PCIe4 mode. I a pcie3 nvme drive on an extension card and disconnecting it had no effect. BIOS and chipset both updated today to no effect. Write caching is checked. I unchecked and re-checked it to no effect.

I've had these drives in operation for about a year, but the first time I measured their performance was when they were low - I don't have a historical record of them being higher.

Any ideas? At this point my options are trying secure erase or buying two new drives which would involve an unpleasant data migration.

 

[USAFRet]

Write cache enabled?
It should be by default, but check.

EDIT: oops...missed that in your text.

What specific drives?

 

[CognitionFailure]

They are both inland gen 4 2280s

 

[Bob.B]

They are both inland gen 4 2280s

Run a pass of crystal disk info on both disk.
Post a screen shot for each.

 

[CognitionFailure]

 

[Bob.B]

Well that shows write speed being quite low.
What I was looking for was screen shots from "crystal disk info".

 

[CognitionFailure]

]

 

[Bob.B]

]

Which crosshair 8 mobo do you have?
Do your other disk benchmark ok?
Looks like you might have 6 disks in the machine how are they connected?

 

[CognitionFailure]

Crosshair Hero 8, wifi version. Not sure if it gets more specific than that?

I also ran samsung magician benchmark and the native windows benchmark, they have consistent results.

I have 3 SATA SSDs and 1 nvme PCIe drive also hooked up. As I said in OP I took out the nvme drive (using an adapter card) to see if it was resulting in too much traffic on the PCIe lanes but it didn't have any effect.

 

[Bob.B]

Crosshair Hero 8, wifi version. Not sure if it gets more specific than that?

I also ran samsung magician benchmark and the native windows benchmark, they have consistent results.

I have 3 SATA SSDs and 1 nvme PCIe drive also hooked up. As I said in OP I took out the nvme drive (using an adapter card) to see if it was resulting in too much traffic on the PCIe lanes but it didn't have any effect.

Just looking....run this and post a link to the results page.
PC Benchmark

What is a native windows benchmark?

 

[CognitionFailure]

winsat disk is the native windows CLI tool for disk benchmarking.

Anything you're looking for specifically from userbenchmark?

 

[Bob.B]

winsat disk is the native windows CLI tool for disk benchmarking.

Anything you're looking for specifically from userbenchmark?

Winsat.....thanks.
Forgot about that tool have not used it in years.

As for UBM just looking to see if there is a clue.