NVMe drives

To make a long story short I just got in a Samsung NVMe 960 EVO which was described as being both M.2 and PCIe x 4. It came in today and there is no way it is a PCIe x 4. It is M.2 which, of course, desktop computers don't have.

So why do the docs say it is a PCIe x 4? You can't put a NVMe in a desktop computer unless it has a M.2 slot?
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LockDown32OwnerAsked:
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JohnBusiness Consultant (Owner)Commented:
According to this Samsung document

http://www.samsung.com/semiconductor/minisite/ssd/product/consumer/960evo/

the Form Factor is M2 (what it plugs into) and the Interface is PCIe 3.0 x4, NVMe 1.2 (which is how it runs).

You can't put a NVMe in a desktop computer unless it has a M.2 slot?

You need both the form factor and the interface in the same machine (my ThinkPad X1 has that). Otherwise it is not going to work. I would return the drive.
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LockDown32OwnerAuthor Commented:
That is what kind of threw me. The call 2.5" and 3.5" drives "Form Factors" yet all you need is a simple adapter. So what other interfaces can a M.2 slot be?

NVMe is supposed to be 5-6 times faster then a SATA SSD but there is no way to put a NVMe drive in to a "normal" desktop computer unless it has a M.2 slot and to add insult to injury you have to make sure that M.2 slot will be a PCIe x 4 intergace?
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JohnBusiness Consultant (Owner)Commented:
I think, but I do not know for sure, that the M2 socket is integrated into the motherboard to get the necessary speed. That cannot be done with a simple adapter (so far as I know). Put another way, the specifications for my desktop (Lenovo) do not allow this drive because it does not have M2 on the motherboard. I think your computer has to be specifically engineered to use this drive.
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LockDown32OwnerAuthor Commented:
Interesting. So as far as normal desktop computers go (with no M.2 slot) the best you can do is a 2.5" SATA 6G SSD drive?
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JohnBusiness Consultant (Owner)Commented:
Yes that is all you can do with a desktop machine. Still, that would be much faster than a hard drive.
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LockDown32OwnerAuthor Commented:
Oh it is and I would trade it for the world. Just seems odd that when you can go 6 times faster that they wouldn't put that option in. Go figure.
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JohnBusiness Consultant (Owner)Commented:
I cannot accurately answer the last question. The motherboard in a Desktop is much different than the motherboard in a laptop (no drive interfaces in my machine). It is probably for engineering reasons it is like this.  They probably could design such a Desktop motherboard but it would likely be more expensive.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
You can install an M.2 slot in a PC using a PCIe adapter.  Just make sure you get the right one.

I have no direct experience with any of these, but for example:
https://www.newegg.com/Product/Product.aspx?Item=9SIA4RE5AU2769&cm_re=m.2_pci-_-9SIA4RE5AU2769-_-Product
https://www.newegg.com/Product/Product.aspx?Item=N82E16815256024&cm_re=m.2_pci-_-15-256-024-_-Product
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Lee W, MVPTechnology and Business Process AdvisorCommented:
M.2 slots are essentially "Mini" PCIe slots originally developed for laptops.
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David Johnson, CD, MVPOwnerCommented:
As Lee mentioned you buy an adapter that plugs into the pci-e slot for older motherboards.  Many of the newest motherboards come with m.2 slots, and even my newest HP servers have 2 m.2 slots.  Where NVME really shines is in a high usage environment as the number for concurrent operations (queues) are a lot higher before the drive becomes saturated.  SATA 6G bus is the major limiting factor these days.
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JohnBusiness Consultant (Owner)Commented:
Just make sure the adapter you choose (Lockdown) is for your computer as the speeds through the adapter interface are very high.  This is why I noted engineering above.
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nobusCommented:
and check if the PCIe-adaptor supports booting from it !
what desktop model, or mobo do you have?
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LockDown32OwnerAuthor Commented:
Thanks guys. I looked at a few adapters and decided it would be better to wait until Dell comes out with some desktops with a M.2 slot. The 8th gen processors should be available soon. Maybe they will put in M.2 slots too.
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JohnBusiness Consultant (Owner)Commented:
Thanks for the update. I think that is a good idea.
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LockDown32OwnerAuthor Commented:
Yes. I don't like the idea of making a computer do something it isn't really designed to do. Like you said the 2.5" SSDs are plenty fast.
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