Slow M.2 SATAIII SSD

[mmCharles]

Hey,

 

I recently installed a Western Digital Green M.2 120GB SSD and I’m less than impressed to say the least. Read speeds are fine at 450, but write spreeds don’t get any higher than 89... WD state that the read/write speeds of this SSD are 450/450. 

 

I’m using an Asrock B350 Pro4, so could this be another Ryzen compatibility qwerk? 

[Sakkura]

WD seems to have removed the write speeds from the official specs, so maybe they've been downgrading the internals.

 

In any case, it's a DRAMless SSD with planar TLC, so low write speeds are not too surprising. 89 MB/s is still quite bad, assuming those are sequential writes. I doubt Ryzen would have anything to do with this, the chipset takes care of SATA and it's old tech AMD has had no real trouble with in past years.

 

Make sure it's in AHCI mode, by the way.

[genexis_x]

18 minutes ago, mmCharles said:

snip

First, low capacity SSDs usually have slower write/read speeds than the official spec (due to some reasons, Google it). Second, the WD Green isn't a great SSD compared to good SATA SSDs like 850 EVO.

 

How much space you've used? Also, make sure AHCI mode is enabled

[mmCharles]

8 hours ago, Sakkura said:

WD seems to have removed the write speeds from the official specs, so maybe they've been downgrading the internals.

 

In any case, it's a DRAMless SSD with planar TLC, so low write speeds are not too surprising. 89 MB/s is still quite bad, assuming those are sequential writes. I doubt Ryzen would have anything to do with this, the chipset takes care of SATA and it's old tech AMD has had no real trouble with in past years.

 

Make sure it's in AHCI mode, by the way.

 

The only reason I mentioned compatibility is because the SSD isn't listed on the QVL list. I assumed it could be a similar situation to RAM with Ryzen.

 

https://www.anandtech.com/show/10748/western-digital-introduces-wd-blue-and-wd-green-ssds

Funnily enough, it actually turns out it should have 540/405read/write, ha.

 

8 hours ago, ZM Fong said:

First, low capacity SSDs usually have slower write/read speeds than the official spec (due to some reasons, Google it). Second, the WD Green isn't a great SSD compared to good SATA SSDs like 850 EVO.

 

How much space you've used? Also, make sure AHCI mode is enabled

 

AHCI mode is already enabled in BIOS. I've just reinstalled Windows and ran the tests again, I'm now getting 116 MB/s. I'm using Novabench's disk benchmark by the way, it's much faster than CrystalDiskMark at this stage.

[mmCharles]

https://community.wd.com/t/wd-green-writing-speed-problem/217536

 

Doesn’t seem like I’m the only one with this issue...

[mmCharles]

Bump

[RedSector]

9 hours ago, mmCharles said:

so could this be another Ryzen compatibility qwerk? 

That's not really likely unless its very specific to motherboard and that M.2 and still would not be Ryzen problem.  The cold comfort is my M.2 is exceeding or at specifications in its Ryzen system which shares nothing the same as yours but is basis of me disproving the theory it's to do with ryzen chip.

 

This is a suggestion as it is what got mine up to specification speed. 

 

Goto Volumes Tab and then Read Partition Style.  IF it is "GUID Partition Table (GPT)" then great IF not then might be able to get better speed changing from MBR Master Boot Record.  

 

Hope this of help. It really maybe waste of time.

 

On bright note changing from MBR to GUID is easy through computer management disk snap in and normally does not need reformat.  It also only work in windows 10 and is not backwards compatible. 

[NelizMastr]

Greens have always been crap. The harddrives were no exception. They're the bottom of the barrel SSDs WD offers, so draw your conclusions based on that. 

[mmCharles]

8 hours ago, NelizMastr said:

Greens have always been crap. The harddrives were no exception. They're the bottom of the barrel SSDs WD offers, so draw your conclusions based on that. 

 

I know, I only got it as a way to always have Windows attached to the motherboard. The read/write speeds are advertised at 540/405 MB/s, surely there shouldn't be any inconsistency with that? I mean, my physical hard drive writes faster than this SSD...

[NelizMastr]

43 minutes ago, mmCharles said:

 

I know, I only got it as a way to always have Windows attached to the motherboard. The read/write speeds are advertised at 540/405 MB/s, surely there shouldn't be any inconsistency with that? I mean, my physical hard drive writes faster than this SSD...

Could be a faulty drive, of course. SSDs aren't some kind of miracle workers. In fact, they've so far proven to be less reliable in some workloads than a harddrive.

[mmCharles]

8 hours ago, NelizMastr said:

Could be a faulty drive, of course. SSDs aren't some kind of miracle workers. In fact, they've so far proven to be less reliable in some workloads than a harddrive.

 

That's the thing, looking at Userbenchmark scores, the majority of recent tests show similar results. Maybe WD decided to use even worse chips with slower write speeds, that might explain why they removed the read/write speeds from their website.

[NelizMastr]

3 minutes ago, mmCharles said:

 

That's the thing, looking at Userbenchmark scores, the majority of recent tests show similar results. Maybe WD decided to use even worse chips with slower write speeds, that might explain why they removed the read/write speeds from their website.

That would be criminal imo. It's not like they're that much cheaper than an 850 Evo or similar Sandisk or Kingston.

[mmCharles]

8 hours ago, NelizMastr said:

That would be criminal imo. It's not like they're that much cheaper than an 850 Evo or similar Sandisk or Kingston.

 

Oh I agree, just seems strange that websites like Anandtech show completely different speeds to what users have benchmarked. Quite suspicious of WD imo.