Dell Precision Tower 7910 / Intel NVME SSD DC P4501

The Intel SSD DC P4501 was available in both 2.5" and NVME form factor.  Assuming you have the NVME form factor, you need an M.2 interface, which the T7910 does not have on the mobo.  Then what you need is a PCI-E nvme adapter card like this one.  I have no affiliation with that specific card.  Dell also made "Ultra Speed" dual and quad nvme cards.  More expensive but more nvme slots.  You can find these on ebay.  Note that this will be a single (and not duplex or quad) PCI-E channel.   But it's what I use, and it seems to work pretty well.  One key point: make sure that you've updated your BIOS firmware to the latest version.  Be REALLY CAREFUL to do this EXACTLY as recommended - else you can brick your mobo.  I'd also run Dell Command to ensure all other drivers are installed.  Unfortunately you have to do this in Windows as I don't think that there is an automated linux driver update.  So what I would do:

1) Buy the PCI-e adapter card

2) Update the BIOS

3) Run Dell Command under Windows, to ensure drivers are updated.  You can update stuff manually but it would be tedious.  Note that one upgrade appears to be the nvme driver, so this is important.

4) Boot down, install the nvme ssd on the adapter card and install the adapter card in your T7910. 

5) The drive should be recognized on boot up.

I may be missing something, and trust that experts here will add to this or propose correct pathways.   One other thing.  The nvme ssd you mention is about four years old.  Unless money is really tight you might do better to spring for a new nvme card.  A brand new 1TB card can be had for 90 bucks or so.

@WizardOfBoz2 

That m you for your post.  I also thought an adapter would be needed, but couldn't make up my mind on which one.  Some have more pins than others.

@BrendanMD 

Turn off Secure Boot in BIOS when loading your NVME drive.  This basically goes for when loading any drive.  Just so you know, NVME drive might not show in the Boot Menu with Secure Boot on, even if BIOS sees it.  He sure to turn Secure Boot back on after loading OS.

Mea culpa. I should have mentioned that I have the 2.5" version and that trying to boot to a live linux always failed when I had the SSD inserted. I guess this means that the backplane in the 7910 is pure SATA. This is the reason I asked about an interposer. I also should have mentioned that this is for a Linux system, not Windows. My guess is that I am out of luck, unless there is a PCIe adaptor for the 2.5 form factor SSD. I was hoping to use this SSD in my "new" system. 

Ah, there is the issue. That intel drive in the 2.5" form factor has an  U.2  interface, and while is pin compatible with sata, it isn't sata.

Maybe something like this

https://www.amazon.it/Xiwai-corsia-SFF-8639-Adapter-scheda/dp/B096KF28L7/ref=sr_1_56?__mk_it_IT=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=2Z1G0FNBPAF55&keywords=u.2+to+sata&qid=1642866068&sprefix=u.2+to+sata%2Caps%2C90&sr=8-56

would work ( but that's me googling, no guarantees given )

@WizardOfBoz2 

Thank you for understanding thru my spelling errors, as that's what I meant to say and not "That m."

Ah, thanks Mazzinia, that's new info for me.  Given your name and the Italian link, you may be in Italia.  In the US, the following Amazon links may be of use to the OP.  If this works as easy as my nvme pci-e card, just put the drive in the card, the card in the machine and (with secure boot off, see above) turn the machine on. 

https://www.amazon.com/Dilinker-U-2-PCIe-Adapter-PEX4SFF8639/dp/B07YKQ2C93/ref=pd_lpo_1?pd_rd_i=B07YKQ2C93&psc=1

https://www.amazon.com/StarTech-com-U-2-PCIe-Adapter-PEX4SFF8639/dp/B072JK2XLC

This blurb from NewEgg suggests that this will work with the Intel CD P3000 series 2.5 cards.  Doesn't mention the P4500 card.  

https://www.neweggbusiness.com/Product/Product.aspx?item=9siv2cagr19609&bri=9b-0zf-0108-004g2

Thanks so much guys. I ran out of time for now and had to install on a HDD, but I will bookmark this for future reference when I finally get time to try the SSD. It cost a $1000 and was never used. Hate that sort of waste.

Just a note to suggest that sunk costs shouldn't drive your decisions, only future costs.  (This is a key decision analytics result that is often contrary to our intuitive response).