I have a NUC Hades Canyon NUC8i7HVK which was working fine for 5 weeks. It suddenly ran very slow so I rebooted windows. Problem was Windows never returned and I was left with the blue push button LED and the right had green LED of the three lit. I contacted support after following the suggested fault finding procedure which included re-flashing the BIOS etc. I was instructed to return the bare unit for check and replacement minus any memory, drives etc I had fitted. Also not to return the power supply. The replacement unit arrived today and has exactly the same fault, 2 LED's lit and wont boot up. Could this be a power supply fault. It's the only thing I couldn't check as I don't have a suitable replacement. Is PSU failure a known common fault with these symptoms.
I tried both SODIMM's independently and removed the SSD's. So I would have at least expected something on screen such as BIOS screen etc. There is another power supply on it's way so if not that I will be stumped.
Thank's Leon. As I mention in this thread https://forums.intel.com/s/question/0D70P000006Hkq6/monitor-problem-with-nuc8i7hvk
The power supply was not at fault and the problem seems centred around the monitor I am using.