This isn't a Windows issue,, the problem is long before Windows even tries to start. With only the HDD you want to use, m.2 960 evo, attached reboot and tap the appropriate key to enter BIOS. If that has no effect, check motherboard manual for Boot Options menu, F12 possibly, and see if you get a menu of drives to boot from. What is listed here?
Is there a speaker attached to the motherboard, either via front panel connections or on the motherboard itself. Any beeps as the PC tries to boot can lead us to the issue.