The bootable drive is not recognized by the Intel® NUC Kit 5i5RYH. Keep using the BIOS version 0348. Please get into the BIOS, press F9 then F10; this option will reset BIOS settings.
The Chipset SATA mode options on your NUC are AHCI and RAID while the Legacy and UEFI Boot are related to BIOS settings. UEFI supports hardware encryption and newer settings.
After resetting the BIOS:
1) Verify if the UEFI and Legacy Boot are enabling on the Boot tab.
2) Check SATA settings on Devices tab: By default AHCI is active.
3) Restart the NUC and check if it is possible to get in the operating system.
If it is not possible, change the Chipset SATA mode to RAID on Devices tab, save changes and let see the behavior.
I have the same hardware as the OP and attempted your suggestions mikec_intel, and was unable to get windows to install onto the pcie ssd.
Changing the chipset mode to raid from ahci had no positive effect.
The only one that worked was to roll back to 0249. Intel has issues with SM951 and bioses newer than 0249, there are other threads on this matter that I uncovered.
Hi Sidewinder and mjut,
Thank you for your feedback; could you please send me your system configuration, I will try to replicate the issue. Please send me the results of System Support Utility.
Intel® System Support Utility Help Guide
Intel® System Support Utility