My NUC8i5BEH recently died with the exact same symptoms. In the past 5 years there have always been periods where the system would just freeze and I had to hard reboot it using the power button (not sure of this was hardware or software related). But some periods it would run just fine. A few months ago when I had to regularly hard reboot it, I also had to take out the power cable for ~15 seconds, otherwise the power button wouldn't work. The recent months were without problems though. The day before it died I picked it up and blew out some dust through to the fan grills.

[USER="524427"]kevlin[/USER]...