Hi @Mkeal welcome to this free user-to-user Alienware laptop discussion forum. 

Intel says BIOS RAID should always be enabled, irrespective of single or dual SSD (C:) boot drive. 

Dual SSD RAID_0 shares data 50% - 50% on one and the other SSD. If Windows operating system works with just one SSD installed, you are correct, there is no dual SSD RAID_0. 

Please clarify 1TO and 2TO acronym/abbreviation and meaning. 

Please open Disk Management with both SSD installed, and share your Disk Management image in your next message. Thank you. 

How to Open Disk Management (lifewire.com). 4 Ways to Take Screenshots on Windows 10 (lifewire.com). Look at message header and click on camera icon to insert image into message.   

Hi, thank you for your reply.

sorry TO is the unit we use in my country it means TB so terabyte

Here is how it is displayed in the BIOS, disk management and diskpart listing : 

 

the disk here was on raid 0 before and would display the size of the two ssd so about 1,8TO instead of the 953.8 GB we can see here

 

 

raid is still on

 

here is how the bios is showing i'm not sure if before all the troubles both SSD were displaying or not

 

 

here is the disk management

 

diskpart listingBefore everything happened it was displayed as about 1,8 TB in the disk management tool but after i removed the raid in the bios it only shows 953GB so the size of only 1 disk.

 

here is what i initially bought: 400-BLXT SSD PCIe NVMe M.2 RAID0 2Tb (2x 1Tb).

 

Thank you for your time,

if you need more please let me know

to clarify TO means TB -> terabyte

 

Hi @Mkeal thank you for sharing all the additional information, especially images with commentary. 

Please remember to conduct Hard Reset before removing or installing SSD card. How to Perform a Hard Reset on a Dell Computer | Dell US  Removing the Base cover 

With both SSD cards installed, BIOS should say both SSD-1 and SSD-2 slots are occupied. Please swap over the #1 SSD card and then the #2 SSD card into the SSD-1 slot and then then the SSD-2 slot. Then power-on and visit BIOS to see if SSD card installation is acknowledged. This should determine that both PCIe sockets are working or perhaps there is a bad electrical connection on one slot. It might help if the SSD cards were manually numbered during this test so that there is no confusion which SSD card was installed in which SSD slot. Record these tests and results, and if Windows operating system opens. 

With both SSD cards installed, Disk Management should list both SSD slots occupied. 

Alienware x17 R1 with Base cover removed

I found this one of the solution:

Capture an image backup of the entire RAID virtual disk, destroy the RAID virtual disk, boot into your imaging application's bootable recovery environment, and restore the image onto one of the physical SSDs. Macrium Reflect is a popular disk imaging/cloning application, and it has a Free version that would be suitable for this purpose.

 

Check if this helps.

hi @crimsom thanks for all the help you provide,

here is what i did :

• unplug battery and press power for 30 sec then reboot -> nothing changed 1 ssd detected
• switch both SSD -> seems like only one of the SSD is detected and the other one seems dead

initial image. SSD n1 is the one on top, SSD n2 is the one at the bottom

 

 

ssd n2 put in ssd 1 socket without the other one

 

the ssd is detected without problem and can boot

 

ssd n2 put in ssd 2 socket without the other ssd

 

the ssd is dected and can boot without problem

 

ssd n1 put in ssd 2 socket without the other ssd

 

ssd n1 not dected in ssd socket n2. No boot available

 

ssd n1 in ssd 1 socket without the other ssd

 

ssd n1 not dected in ssd socket n1. No boot available

 

i guess i will try to buy another SSD to see if it is detected. Or is there another way to know if my SSD is dead or not? 

i will post the results here later when i try a new SSD.

 

Thank you

Hi @crimsom ,

I will do that, thanks for the links, help and informations!

Have a good day!