SSD capacity and connection unknown

WD SSD Products WD SSD Drives & Software
2

Problem solved !!!

Dell has the unfortunate habit of delivering their systems with the SATA Operation (BIOS) set to RAID and not to AHCI.
However, it is not possible to change the BIOS setting directly during start-up, as this results in a non-starting system.

I changed the SATA operation mode from RAID to AHCI in BIOS setup according the following procedure:

  1. Type cmd inside the search box
  2. Right-click on cmd and select run as administrator
  3. Type bcdedit /set {current} safeboot minimal and press ENTER
  4. Restart your computer and enter BIOS Setup by pressing F12
  5. Change the SATA Operation mode from RAID to AHCI
  6. Save the BIOS changes, exit Setup and Windows will automatically boot in Safe Mode.
  7. Type cmd inside the search box
  8. Right-click on cmd and select run as administrator
  9. Type bcdedit /deletevalue {current} safeboot and press ENTER
  10. Reboot once again and Windows will automatically start with AHCI drivers enabled.

The Dell Precision 3420 system is starting up normally and now shows the SSD capacity and the connection correctly.