Does the Dell T7910 support M.2 PCIe 3.0 x4 SSD?

I have just spent 3 weeks trying to make the Samsung 950 PRO work in my Dell t7910 and after sending the 950 pro to Dell to have them try and figure it out, they have given up and told me it is incompatible.  I also spent many hours on the phone with Samsung and they gave up as well.  Good Luck!

Update BIOS

There is 1 and only 1 version of the BIOS, and it is already installed and the Samsung 950 PRO does not work.

I purchased the T7910 because I was told by Dell that it would support this drive when it finally got released.  Otherwise, I would have purchased something much less expensive.

I purchased the T7910 and the 950 PRO because I need the fastest machine I can get for my work, the T7910 is good, but it's too bad we can't use Samsung's flagship ssd.

I was looking at replacing my SATA SSD Boot (in the MB SAS Port) with a Smasung 950 M.2.  Reading this, looks like it does not work.

I was wondering if I could just add this card to one of the PCIe 3.0 x x16.  I have two processors so was going to use one of the top two slots.

http://www.amazon.com/Lycom-DT-120-PCIe-Adapter-Support/dp/B00MYCQP38/ref=sr_1_2?ie=UTF8&qid=1455390910&sr=8-2&keywords=Addonics+M2+PCIe+SSD+-+PCIe+3.0+4-Lane+Adapter#Ask

I use sm951 nvme pcie 256gb(boot,C drive) and 512gb(drive F) already. 1 years ago.

win 7 booting

the reasons why not??

I'm using a Samsung 950 Pro (512GB). Initially I had it in some cheap PCIe-to-M.2 converter, and later I purchased the Dell "PCIe 16x to Quad M.2" card and moved the Samsung 950 Pro to it.

You can read a bit about this Dell card here: www.servethehome.com/.../. Note: this card may not work on another system type due to certain requirements in regards to the hardware on the motherboard.

I'm also pretty sad about this. I've just received my 8000$ brand new Dual Xeon E5-2640 v4 Dell Precision T7910 and tried to use a Samsung 960 Pro 2TB M.2 NVMe SSD but there's no freaking M.2 NVMe slot on this machine's motherboard. Then I ordered a StarTech x4 PCI Express to M.2 PCIe SSD Adapter (Code:  PEX4M2E1) but it's not possible to boot from it at this point, I get the message "No bootable device found", I'm at BIOS revision A19. Pretty sad that Dell did not keep up with new technology on their most high-end Workstation.

We only validated the usage of 1TB, 512GB, 256GB SSDs in our add in PCIe to SSD M.2 Interposer cards.

PCIe to SSD M.2 Interposer card (4 SSD) = Dell sales SKU 414-BBBK, Dell part number 80G5N
PCIe to SSD M.2 Interposer card (2 SSD) = Dell sales SKU 400-AKSO, Dell part number NTRCY

Our cards must be installed in the x16 speed PCIe x16 slots =
Black PCIe x16 slot, x16 speed
Black PCIe x16 slot, x4 speed
Blue PCIe x16 slot, x16 speed
Black PCIe x16 slot, x4 speed

Notice how our card utilizes the full slot/pins =

I cannot speak to that Startech PCIe x4 card because we never validated PCIe x4 card and SSDs.

Drives on slots 2/3/4 will only be seen as additional storage, not as boot drives. They have to configured as storage drives via the operating system.

Specifications =
* PCIe x16 slot
* 1TB, 512GB, 256GB SSDs
* UEFI Boot support
* No RAID support
* Allow mixing of PCIe card with M.2 SSDs and other drive types on a system
* Allow a drive on the PCIe card slot 1 to be the boot drive and the rest to be additional drives (plus have other drive types in drive bays)
* Allow another drive type to be the boot drive and the PCIe card with M.2 SSDs to be additional drives

Does the card have to be in PCIe slot 1 to make it the boot drive or can it be in ant PCIe slot and be boot?

Drives on slot 2/3/4 are not visible on Disk Management tool of windows 10.

How to configure them as storage drives?

When you say that this card has "No RAID support" does that mean it cannot be used to create a software RAID (e.g. Storage Spaces in Windows 10) between the individual drives, or is it referring to the fact this card doesn't include a hardware RAID controller?