@Lost_N_BIOS thank you very much for your reply.

I changed my initial plans, and bought a new SFF case, mobo and cpu.

Thanks again though!

@ Lost_N_BIOS
model no. is latitude 3400.
no, i did not try (Dell Asset Service Tag DST) utility.
i need to know how can we find servicetag & asset tag place in hxd or with uefitool like older dell plateform bios.
i checked nvram section vss store padding area ftw store carefully but not able to find servicetag or asset tag in hxd.
is both are encryped ? or any option to view them to download right exe from oem website, even if laptop sticker color faded or tear off means not able to see service tag info.
and after make fresh bios with help of oem .exe insert them without any tool possible?

@earthoo7 - I don't know for sure, dump BIOS region and send to me, and send me image of Main BIOS Page and I will look for you.

I have a Dell Latitude E5450 laptop that I purchased a refurbished motherboard for. The service tag was set to 1234567. I have been trying everything I can to update the service tag to the original to no avail. This thread is very interesting and I would like to figure out how to set the service tag. Would you be willing to teach me to use the method you outlined to change the service tag?

@thod_ris, "I am still looking for a reasonable price for and XE2, so I will update as soon as I get it"

Hey, I just got an XE2 cheap, if you are interested and don't mind ordering abroad like I did?
So, I got an XE2 i7-4770S from a German second-hand reseller named it-welt24.de, for 189 euros, plus 15 for international delivery, cool :)

Adding all the other bits and bobs for a full desktop work system (all from other places, like amazonS and ali... - except for a second-hand monitor which I also got from it-welt), unfortunately still took the desktop over the 500 threshold (which for many of you still is "nothing", I know).

Anyway, it's a super xe2, I like it.
It's actually how I landed here at Win-Raid. Because I also bought a (new) nvme ssd, together with an adapter for xe2's pcie x16 slot (its fastest, and 3.0). All works well for DATA already, but obviously I am desperate to get it working for booting from the shiny new Samsung 970 Evo Plus nvme ssd.

And THIS is what's holding me up already for the 5th day. By now I've most search results grey, because Duck shows me I've read it already, lol. And you see, here I am in this thread alone on the penultimate page. I had also searched of course, but the forum found nothing of help unfortunately.

While modding xe2's BIOS remains an ultima ratio, for now I refrain doing so as articles everywhere convinced me that the Dell XE2 indeed CAN be made to boot from pcie natively. It's just a teeny bit still that I seem to be missing.

Dell's newest BIOS update "A26" along with three more updates I accepted. While I also downloaded Samsung's own nvme driver, it isn't "integrated" yet into Win10's ISO file because that was created by Window's Media Creation tool. I don't have a Win10 installation, it will be its first, straight onto the NVME SSD, I still HOPE.

Anyway, I stop the rumbling, get the XE2, it's good IMHO. :)