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05-07-2021

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How to enable PCIe 3.0 x4 on T570?

2021-05-07, 20:04 PM

Hello, I have a Lenovo T570 and I would like to know how to enable PCIe 3.0 x4 because the one I currently use is PCIe 3.0 x2. I attach some screenshots where you can verify that using CrystalDiskInfo indicates the characteristics:

  • NVMe SSD Model: SAMSUNG MZVLW256HEHP-000L7 256.0 GB
  • CurrentMode: PCIe 3.0 x2
  • SupportedMode: PCIe 3.0 x4

 

  • The speed I have is a PCIe 3.0 x2 but if I used the PCIe 3.0 x4 it would be 3,500.

  • I have seen BIOS like this where you can change from PCIe 3.0 x2 to x4 and I would like to know how to do it on my Lenovo T570.

 

  • Thank you very much for your time, I hope you can help me because I move large amounts of data every day and it would save several minutes in transfers.
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7310 Posts

06-27-2008

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Re:How to enable PCIe 3.0 x4 on T570?

2021-05-07, 21:49 PM

@ genio2812 wrote:

I have read in various sales channels that the speed of my SSD it reaches is 2800 MB/s.

 

This means that it has more than a '' NVMe x2 SSD that maxes out at a speed of 1970 MB/s and the x4 a speed of 3940 MB/s.

 

The only conclusion I reach is that the T570 does not have 4 lines but it does have a higher quality NVMe than the '' ones of x2 and for this reason CrystalDiskInfo classifies it as an NVMe x4 by exceeding the speed of 1970 MB / s at reaching 2800 MB/s.

 

What do you think? Thank you very much again.

 

 

I believe the specs in the platform sheet I linked above... that the T570 only supports PCIe 3.0 x2, and that even though an x4 SSD (yours) is installed it runs at the x2 capability of the T570.

 

CrystalDiskInfo is correctly reporting that the SSD itself is x4, and it is correctly reporting that it is currently running at x2.

 

Regards.


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7310 Posts

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Re:How to enable PCIe 3.0 x4 on T570?

2021-05-07, 20:48 PM

Good day.

 

Based on the T570 platform spec sheet: https://psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_T570/ThinkPad_T570_Spec.PDF, it looks like the system only supports x2. That would be how the system board is designed/wired, if accurate.

 

Regards.


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Re:How to enable PCIe 3.0 x4 on T570?

2021-05-07, 21:02 PM

Thank you very much for your quick response, I don't know why but I thought the T570 had PCIe 3.0 x4. I don't know if I read it anywhere.

  • So could it be that what CrystalDiskInfo indicates is that it is the Samsung NVMe SSD itself that supports PCIe 3.0 x4 but is using PCIe 3.0 x2 in the computer, right?
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Re:How to enable PCIe 3.0 x4 on T570?

2021-05-07, 21:15 PM

@ genio2812 wrote:

Thank you very much for your quick response, I don' know why but I thought the T570 had PCIe 3.0 x4. I don' know if I read it anywhere.

  • So could it be that what CrystalDiskInfo indicates is that it is the Samsung NVMe SSD itself that supports PCIe 3.0 x4 but is using PCIe 3.0 x2 in the computer, right?

 

Yes. I believe that model SSD is x4, and that it runs as x2 to be compatible with the T570.

 

I do not see this SSD listed on the Samsung site, but I may have missed it. Regardless of that, I am seeing it listed as x2 on some sales and review sites.

 

Regards.


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Re:How to enable PCIe 3.0 x4 on T570?

2021-05-07, 21:38 PM

I have read in various sales channels that the speed of my SSD it reaches is 2800 MB/s.

 

This means that it has more than a 'basic' NVMe x2 SSD that maxes out at a speed of 1970 MB/s and the x4 a speed of 3940 MB/s.

 

The only conclusion I reach is that the T570 does not have 4 lines but it does have a higher quality NVMe than the 'basic' ones of x2 and for this reason CrystalDiskInfo classifies it as an NVMe x4 by exceeding the speed of 1970 MB / s at reaching 2800 MB/s.

 

What do you think? Thank you very much again.

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7310 Posts

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Re:How to enable PCIe 3.0 x4 on T570?

2021-05-07, 21:49 PM

@ genio2812 wrote:

I have read in various sales channels that the speed of my SSD it reaches is 2800 MB/s.

 

This means that it has more than a '' NVMe x2 SSD that maxes out at a speed of 1970 MB/s and the x4 a speed of 3940 MB/s.

 

The only conclusion I reach is that the T570 does not have 4 lines but it does have a higher quality NVMe than the '' ones of x2 and for this reason CrystalDiskInfo classifies it as an NVMe x4 by exceeding the speed of 1970 MB / s at reaching 2800 MB/s.

 

What do you think? Thank you very much again.

 

 

I believe the specs in the platform sheet I linked above... that the T570 only supports PCIe 3.0 x2, and that even though an x4 SSD (yours) is installed it runs at the x2 capability of the T570.

 

CrystalDiskInfo is correctly reporting that the SSD itself is x4, and it is correctly reporting that it is currently running at x2.

 

Regards.


Community GuidelinesPrivate MessagingENDEESPTRUUACZ-SKTRMoto
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5 Posts

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Re:How to enable PCIe 3.0 x4 on T570?

2021-05-07, 22:15 PM

Yes, I think the same. Too bad the T570 doesn't have PCIe x4, I don't understand why it doesn't. I'd like to know if you know of any other spec sheets for another T-series laptop that appears to have PCIe x4.

 

Thanks for your time.

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319 Posts

07-10-2011

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Re:How to enable PCIe 3.0 x4 on T570?

2021-06-24, 1:54 AM

Just saw this and checked mine and it is running the 4x M.2 at 2x.  When I first got this laptop a couple months ago I copied specs from cnet and memory4less and they both quote the laptop's speed, incorrectly, as 4x. So I can understand your confusion. I never would have noticed that if I hadn't seen this post, so, THANKS!!! But, yeah, apparently only supports max of 2x.

Yeah, that's too bad, but it's still darn fast!!! :)

 

Thanks!

--- ThinkPad T570-20HA, i7-7600U, 2.8GHz, UEFI/GPT, 16GB, Sammy 256GB M.2 .
---
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Re:How to enable PCIe 3.0 x4 on T570?

2021-06-24, 2:44 AM

I did some more thinking and HWinfo seems to indicate that it's 4x running at 2x.

???????????????????????

 

EDIT: ...  ah, but further down, if I click on the actual drive it says the controller is 2X

--- ThinkPad T570-20HA, i7-7600U, 2.8GHz, UEFI/GPT, 16GB, Sammy 256GB M.2 .
---
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  • Message 10 of 10

Re:How to enable PCIe 3.0 x4 on T570?

2021-07-24, 1:11 AM

ignore above comment.

 

I was just looking at HWinfo trying to figure out why they did that and my guess is that they decided to put "Thunderbolt" capability on that laptop and it chews up a few 4x lines. None left for the ssd. Limit of the cpu. I saw another person say that the T480 only has 2x whereas the T480s is 4x. Something I will have to check very carefully before getting another laptop! I briefly had a Samsung 980 Pro in it and speeds were almost identical. Maybe a tad increase in write speeds. Lose half going from x4 to x3 and lose half again going from 4 lanes to 2. Sad.

 

Be well.

--- ThinkPad T570-20HA, i7-7600U, 2.8GHz, UEFI/GPT, 16GB, Sammy 256GB M.2 .
---
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