Question Samsung 970 EVO Plus slow writing speed

[deepsun]

Yesterday I have noticed, that my Samsung 970 EVO PLUS writing performance is seriously lagging behind.
Magician said my disk have latest firmware. I did not notice any temperature issues it's stays around 40C(102F) +-couple of degrees.
Status of the drive is good. I did a scan and it came out good.
this is my desktop configuration:
Asus rog strix z390-E motherboard
Intel Core i5-9600K processor

I started looking around and have done following things:
1. Updated BIOS to the latest version. This brought performance a bit up, like 30MB\s
2 Updated SSD driver with driver from Samsung(Samsung_NVM_Express_Driver_3.3). Got about 50MB\s again.
3. Updated chipset drivers for the motherboard. Got about 400MB\s increase, but it still way below 1500Mb\s
Here r some photos:
PCIe controller configuration
Disk performance data
Disk info
Disk Status
Disk cache is enabled
Crystal Disk mark results
Crystal disk info
I am wondering is it disk itself having issues or I still missing something?
UPDATE:
Bought brand new 1TB evo 970 plus,... and here r results:
evo 970 PLUS 1TB performance test
AS SSD Benchmark 1TB disk
Crystal disk info
Crystal disk mark results
Looks like it's weird disk issue after all. And how to explain Samsung Magician IOPS debacle I still do not know.

 

[rocktalkrock]

Does Samsung Magician report the Drive Health as Good?
Have you tried both M.2 sockets on your motherboard to see if there is any difference?
Your Random Read IOPS is also very low.

 

[USAFRet]

Yesterday I have noticed, that my Samsung 970 EVO PLUS writing performance is seriously lagging behind.

How did you notice this?
Writing from what?

 

[deepsun]

Does Samsung Magician report the Drive Health as Good?
Have you tried both M.2 sockets on your motherboard to see if there is any difference?
Your Random Read IOPS is also very low.

Yes, drive status is good. Please take a look on screenshot I have added.
Starting from sequential write everyt6hing is below expectations I would say. So I am wondering maybe it's disk issue...

No, I did not try to switch slots. It would mean, that I should go under the desk, so hope has been, that I would be able to avoid that ordeal.)

 

[deepsun]

How did you notice this?
Writing from what?

Well, it was just a hunch. I have decided to update Magician and after that I ran performance test and story started from there.

 

[Bob.B]

Yesterday I have noticed, that my Samsung 970 EVO PLUS writing performance is seriously lagging behind.
Magician said my disk have latest firmware. I did not notice any temperature issues it's stays around 40C(102F) +-couple of degrees.
Status of the drive is good. I did a scan and it came out good.
this is my desktop configuration:
Asus rog strix z390-E motherboard
Intel Core i5-9600K processor

I started looking around and have done following things:
1. Updated BIOS to the latest version. This brought performance a bit up, like 30MB\s
2 Updated SSD driver with driver from Samsung(Samsung_NVM_Express_Driver_3.3). Got about 50MB\s again.
3. Updated chipset drivers for the motherboard. Got about 400MB\s increase, but it still way below 1500Mb\s
Here r some photos:
PCIe controller configuration
Disk performance data
Disk info
Drive Status
I am wondering is it disk itself having issues or I still missing something?

You photos talk about a samsung 750???

Run crystal disk mark and post a screenshot of the results.

Run crystal disk info and post a screenshot of the results.

 

[rocktalkrock]

Yes, drive status is good. Please take a look on screenshot I have added.
Starting from sequential write everyt6hing is below expectations I would say. So I am wondering maybe it's disk issue...

No, I did not try to switch slots. It would mean, that I should go under the desk, so hope has been, that I would be able to avoid that ordeal.)

Have you checked in Device Manager to see if write-caching is enabled for your drive?

 

[deepsun]

Have you checked in Device Manager to see if write-caching is enabled for your drive?

Have you checked in Device Manager to see if write-caching is enabled for your drive?

Yes, disk cache is enabled. I just added appropriate screenshot. It's kinda strange: everything looks good and yet stats are abysmal:\

 

[deepsun]

You photos talk about a samsung 750???

Run crystal disk mark and post a screenshot of the results.

Run crystal disk info and post a screenshot of the results.

Not sure what r u talking about, sorry. If u take a look on screenshots u would c there evo 790 Plus. Could u, pls, elaborate why u think drive is 750?

 

[Bob.B]

Not sure what r u talking about, sorry. If u take a look on screenshots u would c there evo 790 Plus. Could u, pls, elaborate why u think drive is 750?

Ex....Look at the drive status page it shows C: evo 750.

 

[USAFRet]

Not sure what r u talking about, sorry. If u take a look on screenshots u would c there evo 790 Plus. Could u, pls, elaborate why u think drive is 750?

What we out here see...

 

[rocktalkrock]

I think that is just a glitch in the Samsung Magician software. I have a 970 EVO Plus also and it is misidentified as an 870 EVO in the Performance Benchmark results.

 

[deepsun]

Ex....Look at the drive status page it shows C: evo 750.

Oh))) It's logical drive name. Remnants of once upon a time previous drive, which been replaced but cloning brought old drive name with it.

 

[USAFRet]

I think that is just a glitch in the Samsung Magician software. I have a 970 EVO Plus also and it is misidentified as an 870 EVO in the Performance Benchmark results.

Not even a glitch.
I think that is just the Volume label that it originally had.

My 3 Samsung drives show the Volume label in that space.
980 Pro and 2x 860 EVO.

 

[Deleted member 2838871]

Wow… 70TB written! The perks of a 500GB drive… writing and rewriting over and over.

That 70TB written is 3 times what I written across 4 2TB 970s in 2+ years.

 

[Bob.B]

Oh))) It's logical drive name. Remnants of once upon a time previous drive, which been replaced but cloning brought old drive name with it.

Ok.
Run the 2 tools I mentioned above.

 

[deepsun]

Wow… 70TB written! The perks of a 500GB drive… writing and rewriting over and over.

That 70TB written is 3 times what I written across 4 2TB 970s in 2+ years.

Yeah, it's kinda a lot

 

[deepsun]

You photos talk about a samsung 750???

Run crystal disk mark and post a screenshot of the results.

Run crystal disk info and post a screenshot of the results.

Attached screenshots of crystal disk results for old and new disk

 

[deepsun]

I think that is just a glitch in the Samsung Magician software. I have a 970 EVO Plus also and it is misidentified as an 870 EVO in the Performance Benchmark results.

That's weird. So Their benchmark results could not be trusted?

 

[rocktalkrock]

That's weird. So Their benchmark results could not be trusted?

The Samsung Magician results are correct. As you pointed out, the "870 EVO" was the drive label i had entered, by mistake. My drive also has a slower Sequential Read/Write speed because the M.2 socket on my motherboard only connects at PCIe Gen. 3 x 2, not the normal PCIe Gen. 3 x 4.

 

[deepsun]

The Samsung Magician results are correct. As you pointed out, the "870 EVO" was the drive label i had entered, by mistake. My drive also has a slower Sequential Read/Write speed because the M.2 socket on my motherboard only connects at PCIe Gen. 3 x 2, not the normal PCIe Gen. 3 x 4.

Well, then how to explain about same IOPS(as on old) on brand new disk?

 

[rocktalkrock]

Well, then how to explain about same IOPS(as on old) on brand new disk?

This forum post shows Random Read IOPS similar to yours.

Low IOPS Samsung 970 EVO Plus 1 TB NVMe M.2

Hi to everyone, Today I installed my new M.2 drive, and I run a benchmark, the samsung magic one, I dont know how to run Crystal Disk Mark, and i wonder if the IOPS that shows are normal... I serched on de internet and watched that the IOPS are to low... My results: Another guys results: any idea...

linustechtips.com

 

[deepsun]

This forum post shows Random Read IOPS similar to yours.

Low IOPS Samsung 970 EVO Plus 1 TB NVMe M.2

Hi to everyone, Today I installed my new M.2 drive, and I run a benchmark, the samsung magic one, I dont know how to run Crystal Disk Mark, and i wonder if the IOPS that shows are normal... I serched on de internet and watched that the IOPS are to low... My results: Another guys results: any idea...

linustechtips.com

Thanks, man! Would check it out

 

[Bob.B]

Attached screenshots of crystal disk results for old and new disk

Screenshots seem to be missing.

 

[deepsun]

Screenshots seem to be missing.

Strange. I just open all new screenshots and they all look fine... Could u, pls, try again?