Question M.2 not recognized by Windows 10

[sierra201107]

Hi,

I bought a second M.2 (Crucial P5) for my build but Windows won't recognize the drive. I haven't installed anything on it, just plugged it into the port on the motherboard.

In BIOS it will show up under boot priority. In Windows, however, the drive is not displayed in Explorer. I also checked device manager and it will show up there.

I tried everything to fix this:

• Pulled all SATA plugs so they can't interfere
• Checked BIOS for the correct settings (M.2 enabled, set to PCIe)
• Updated BIOS to the latest version
• Swapped M.2 drives (the other one has the OS on it), didn't change anything

I've read some of the other threads describing similar issues but I couldn't find anything helpful. What can I do?

Here's my build:

• OS: Windows 10 (Version 2004 / Build 19041.508)
• Motherboard: Asus Prime Z370-A
• CPU: i7-8700K
• GPU: GTX 1060 6GB Dual
• M.2: Samsung 960 Evo 250GB + Crucial P5 1TB
• SSD: Crucial MX500 1TB + Crucial MX300 250GB
• RAM: Corsair Vengeance 32GB (4x8GB)
• PSU: Thermaltake Berlin 630W

 

[USAFRet]

Does it appear in Disk Management?

 

[sierra201107]

Does it appear in Disk Management?

No, it doesn't.

 

[SkyNetRising]

I also checked device manager and it will show up there.

Can you show screenshots from :

Device Manager (Disk drives section expanded),​

Disk Management,​

Windows Storage Spaces?​

(upload to imgur.com and post link)

 

[sierra201107]

Can you show screenshots from :

Device Manager (Disk drives section expanded),​

Disk Management,​

Windows Storage Spaces?​

(upload to imgur.com and post link)

Here you go. Could it be that "disk 0" in disk management is the M.2? Because before I only had one drive with 1TB storage, which is volume D.

https://imgur.com/Y3w5isC

View: https://imgur.com/Y3w5isC

https://imgur.com/m9JTTXt

View: https://imgur.com/m9JTTXt

https://imgur.com/WQBtftT

View: https://imgur.com/WQBtftT

 

[SkyNetRising]

Could it be that "disk 0" in disk management is the M.2?

Yes. Obviously.
Create a partition on Disk 0, format it, assign drive letter.

 

[sierra201107]

Yes. Obviously.
Create a partition on Disk 0, format it, assign drive letter.

Funny, it didn't show up when I checked yesterday… But I didn't check again after I swapped the M.2's, so... I will definitely try formatting it tonight!