Question NVME ssd running extremely slow at only 100Kb/s ?

Feb 27, 2024
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YES, you heard that right, this is a WD black nvme ssd, with a speed up to around 7000mbs(image is in the link). It is currently running at 1mbs, never reached over 500mbs, the read speed is usually even lower. SSD itself is fine, pretty sure, bought it a week ago.
Can someone help...
I updated my firmware, didnt help
Tried trouble shooting, didn't work.
bios settings are fine as well
I benchmarked it, and here's the result. the speed is high only while benchmarking.
SPECS:
i7 13700kf
rtx 4060
32GB ddr5
1tb nvme
1tb hdd
z750 plus wifi asus tuf gaming motherboard
 

zinkles

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Aug 24, 2022
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There should be some task that does something to make the speeds go higher. i.e: Benchmarking, copying/reading/writing large files, loading huge game assets, etc.

You wont see high speeds while the drive isnt in use, because... why in the first place?

You see, task manager shows only the "current" read/write speed. Usually Windows (or any OS) constantly reads/writes files and stuff to the SSD even when idle, so its showing that speed what it's writing/reading those files at. These small files are a few kilobytes sometimes, and writing that tiny file at 7000Mbps to the SSD is virtually not possible, thus it's written at a smaller speed. I think you get the idea.

You never reached above 500Mbps, because it never needed to. When its needed to, it will reach its max, as you saw with benchmarking.

Since your benchmark results are good, (near advertised speeds), you're good to go. This isn't a problem with the SSD, rather a misunderstanding by you. The SSD is performing well.

Don't confuse current read/write speeds with the maximum possible read/write speeds. They both are different and may vary.
 
Last edited:
Feb 27, 2024
17
0
10
There should be some task that does something to make the speeds go higher. i.e: Benchmarking, copying/reading/writing large files, loading huge game assets, etc.

You wont see high speeds while the drive isnt in use, because... why in the first place?

You see, task manager shows only the "current" read/write speed. Usually Windows (or any OS) constantly reads/writes files and stuff to the SSD even when idle, so its showing that speed what it's writing/reading those files at. These small files are a few kilobytes sometimes, and writing that tiny file at 7000Mbps to the SSD is virtually not possible, thus it's written at a smaller speed. I think you get the idea.

You never reached above 500Mbps, because it never needed to. When its needed to, it will reach its max, as you saw with benchmarking.

Since your benchmark results are good, (near advertised speeds), you're good to go. This isn't a problem with the SSD, rather a misunderstanding by you. The SSD is performing well.

Don't confuse current read/write speeds with the maximum possible read/write speeds. They both are different and may vary.
Well, the speed in task manager was like only 300mbs while i was downloading gta5 from steam yesterday, does that not make the speed go higher?
 

zinkles

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Aug 24, 2022
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Well, the speed in task manager was like only 300mbs while i was downloading gta5 from steam yesterday, does that not make the speed go higher?
Depends on your internet speed. It can only write what had been downloaded, it cant just magically generate more data to be written.

As I said, benchmarking is the way to see if the drive is working at its rated speeds, which it very closely is, so you shouldn't be worried about anything.

Try benchmarking, and while running the benchmark, see task manager. it will show the high drive speeds.
 

zinkles

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Aug 24, 2022
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The speed of ssd in task manager while i was downloading GTA5 from steam was only 300mbs.
Depends on your internet speed. It can only write what had been downloaded, it cant just magically generate more data to be written.

As I said, benchmarking is the way to see if the drive is working at its rated speeds, which it very closely is, so you shouldn't be worried about anything.

Try benchmarking, and while running the benchmark, see task manager. it will show the high drive speeds.
^^^^
 

NedSmelly

Prominent
Feb 11, 2024
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Well, the speed in task manager was like only 300mbs while i was downloading gta5 from steam yesterday, does that not make the speed go higher?
That's your internet download speed.

Drag a movie video file into your SSD and watch the transfer rate. That's your sequential write speed. But if you're dragging it from a hard drive, then you won't see anything higher than the hard drive's read speed.

CrystalDiskMark is correct and everything looks fine.
 
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Feb 27, 2024
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Depends on your internet speed. It can only write what had been downloaded, it cant just magically generate more data to be written.

As I said, benchmarking is the way to see if the drive is working at its rated speeds, which it very closely is, so you shouldn't be worried about anything.

Try benchmarking, and while running the benchmark, see task manager. it will show the high drive speeds.
The download speed in steam shows 550mbs, but my ssd was at 300
 

zinkles

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Aug 24, 2022
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The download speed in steam shows 550mbs, but my ssd was at 300
as i mentioned, it's not a problem with the SSD, its totally normal. infact everyone's SSDs are not always at its full speed, and it only goes high as it want to go. The benchmark proved it can go to ~7000MBps, so you shouldn't be worried at all.

steam might handle stuff differently or may store some of it in the RAM before writing(?) and also be aware of MBps and Mbps, they are different.
 

zinkles

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To make things clear, ill take a car as an example;
Just because a car can go at, lets say 200Km/h, doesn't mean it will always go at 200Km/h. Multiple factors are considered before the car can go at its max speed. When it doesn't need to go at its max, it will obviously go at a slower speed.
 

NedSmelly

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Feb 11, 2024
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the write speed shouldn't rely on the hdd. pretty sure
To get 6000MB/s you need to be able to feed it with something that can deliver 6000MB/s.

CrystalDiskMark does this by feeding data on the SSD to itself, and/or writing directly from RAM.

Nothing else on your system will get close to 6000MB/s - not your hard drive, or your internet connection.

Try this: open a giant TIFF file in Photoshop. Now save it uncompressed to the SSD whilst watching the write speed in Task Manager. Now you will see it approach 6000MB/s because it is saving from RAM.

OK I'm checking out of this thread... it's feeling like a 'kilo of feathers'...
 
Last edited:
Feb 27, 2024
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To get 6000MB/s you need to be able to feed it with something that can deliver 6000MB/s.

CrystalDiskMark does this by feeding data on the SSD to itself, and/or writing directly from RAM.

Nothing else on your system will get close to 6000MB/s - not your hard drive, or your internet connection.

Try this: open a giant TIFF file in Photoshop. Now save it uncompressed to the SSD whilst watching the write speed in Task Manager. Now you will see it approach 6000MB/s because it is saving from RAM.

OK I'm checking out of this thread... it's feeling like a 'kilo of feathers'...
will booting up and loading a game be 6000mb/s?
Then there is really no point of having a fast ssd
 

USAFRet

Titan
Moderator
will booting up and loading a game be 6000mb/s?
Then there is really no point of having a fast ssd
That "6000" is only seen when transferring a large block of data between two such drives.


But.....an SSD is hugely beneficial to daily ops, in that the seek time is near zero.However, this applies to all solid state types. From a lowly SATA III SSD to a PCIe 5.0.

I have 6x SSDs in my system , from a pciE 4.0 980 pRO TO A SELECTION OF SATA III drives.
Often, it is hard to tell the difference in daily use.


Marketing, however, will convince you that you need the uberest fastest drive.

See these:

View: https://www.youtube.com/watch?v=4DKLA7w9eeA

View: https://www.youtube.com/watch?v=GQ9LyNXpsOo