XPS 8930, installing new SSD drive

@wayneout423 No, opening your computer will not void the warranty. 

If you are not sure where a new SATA cable goes or about adding a drive you should probably check out the Service Manual.

The system board components diagram shows where the SATA connectors are located. There are extra SATA power connectors, but you will need a SATA cable. You can mount a 2.5" SATA SSD in the hard-drive cages at the bottom of the case. Some cages have holes in the top of the cage that line up with the mounting holes in the bottom of 2.5" drives. If not you will need a 2.5" to 3.5" adapter for mounting the new SSD. You may benefit from a SATA cable with a right-angle connector because the edge of the hard-drive cage is close to the side panel and a straight connector may interfere with closing the side panel.

Do you know if your current SSD is an M.2 or a 2.5" drive? 

By migrating the OS, I think you mean cloning your current SSD. You can use a program like Macrium Reflect Free Edition to do the job or depending on the SSD you purchase, some make cloning programs available for free downloading. Usually, after you complete the cloning process, you disconnect the old drive before booting up the new drive. I would also connect the new drive to SATA0 which is usually where the original boot drive is connected.

Hi, @wayneout423 ,

From your query, I'm not certain if you are trying to replace the existing SSD (since you talk about "migrating the OS") or you are adding an addition SSD (since you refer to "do I have expansion port for it").

Firstly, I suspect that you have a M2 SSD which is directly plugged into the Motherboard (this is effectively a much faster interface than your Conventional SATA SSD). If so, I'm assuming that your OS is installed onto it (NOTE:- this is the Size/Combination on my XPS8930 & that is my configuration - hence the basis of my assumption)!

Starting with the easiest option (adding an additional SSD), simply install it into one of the spare Drive Buys & follow the advice of @Anonymous .

If you are replacing the existing M2 SSD (presumably because you want a larger Capacity) then you do NOT have a spare port for it to be able to operate both at the same time (which you will need to do to be able to migrate the OS). You will need to either purchase an external USB Adaptor OR purchase a PCI-E Adaptor.  When migrating the OS to the (assumed) larger SSD, you will need to determine whether you want a larger C-Drive or do you want to keep the size of the existing C-Drive & use the additional 3rd Drive - either way, I would suggest that you look on You-Tube as there any many Videos that explain how to do this!

Hope some of this clarifies?

@wayneout423  - Are you using the 1T HDD for storage or is everything just being stored on the SSD? In that case, maybe don't need to install/replace the SSD.

You should only store Win 10 and your apps on the SSD and store all your data on the 1T HDD. Win 10 stores its default folders on the same drive where the OS is installed. So you need to manually set Win 10 to move default folders (docs, music, photos etc) to the 1T HDD to free up space on the SSD. And also configure your installed apps to save their output (data) files on the HDD too.

My SSD is a micron 2200s nvme 256GB.
I did a type with my HHD. It is a 2TB HHD not a 1TB.
I would like to move as much as possible to my HDD.  One of the
things I would like to move is my One Drive. I read instructions on line that you should unlink
It to your PC but when I right click on it I do not get that option. I will have to read the part about
having windows move locations. The only thing I know of is when you right click and it gives you
the option to move. 
As for the moving the OS to another drive, I have decided not to do that since reading all the answers
here. If I do put in another drive, it will be just for storage. I read somewhere that SSD's and HDD's
were going down in price, but I haven't seen that yet. 
Thanks for all the advice. Sorry about not answering for a few days. Had a few doctor appointments
and stuff.

@wayneout423  - Looks fairly easy to move the OneDrive folder to another drive. Once you unlink it, you use Windows Explorer to drag the folder onto the HDD. Then follow the rest of the instructions at that link to finalize the move.

And moving the Windows default folders to the 2T HDD should be easy too.

Then open your installed apps and look for "preferences" or "options" on the  toolbar and see if each app gives you a choice where to save the output and choose the 2T HDD. You can create a new folder on the HDD for each app's files, if you want to keep them separate and easy to find.

If you use Firefox, it is a bit more complicated to move your profile to another drive, but the instructions are here.

And once that's all done, you'll probably have lots of free space on the 256 GB SSD again and it will take you a while to fill up a 2T HDD!