I tried the diagnostics with Switchable Graphics On and Off. Both times were with the boot mode in RAID, and both times the diagnostics crashed after a few minutes. Back in AHCI mode diagnostics...

Yes, UEFI secure boot all along AND the Intel RST was installed, even in AHCI mode. I need it for the SATA SSD.

I didn't run the Dell Diagnostics. I could try that.

It does go into Safe Mode properly, as long as I don't change the boot mode from AHCI to RAID. Once I change that in UEFI/BIOS, upon reboot it goes to the INACCESSIBLE_BOOT_DEVICE.

Knowing your...

Thank you for the fast reply!!! I did try your method as posted. I get the INACCESSIBLE_BOOT_DEVICE BSOD upon rebooting after switching over to RAID mode. Yes, it came from the factory in RAID...

Hey Mike,

Would you mind elaborating with more details on going from AHCI mode back to RAID?

Here is my situation. I have the 7710, two Samsung 950 NVMe drives in AHCI mode and using the...