i installed on NUC a Samsung SSD 830 and 16 GB DDR4 Kingston (exactly HX421S13IBK2/16). Installed all drivers. Just shutdown the NUC lights up the blue light, but it is off.
I tried to update the bios (Express BIOS and F7 update) to 0033 version (i've 0028 version), but after a night light is orange and blinks. No way.
Sorry for my bad english and thank you.
I understood the NUC already have installed the latest BIOS version 0033. Go to BIOS and reset settings with F9. Then, I recommend you to get into the BIOS>Advanced>Devices>PCI and enable M.2 slot.
Finally, update the chipset and Management Engine drivers of the NUC.