Please try to narrow down the issue using 1 memory stick. Unplug the power cord from the NUC, open the chassis and remove 1 memory module then, plug the power cord and turn the NUC on, keep tapping F2 with a wire keyboard (this process let you getting into the BIOS).
Review memory speed, it should be 1600MHz at 1.35v, otherwise change it manually. The latest BIOS version is 0355. Restart the NUC and try to get in the operating system Windows® 10. Update the operating system first and finally NUC drivers from Drivers & Software Start with the Chipset and ME drivers.