Intel NUC7i3 and OpenElec 8.0.3 issues

Hi Community!

Are there any recommended BIOS settings for Intel NUC and Openelec 8?

I just installed my new NUC7 i3 BNH with Openelec 8.0.3 and the suspend does not work. PC goes to suspend but it doesn’t wake up anymore.

Also the HEVC playback brings only a black picture with sound in the background and sometimes even crashes.

I also have one of the first NUC with an Celeron running Openelec 7.0.1 and there are no issues whatsoever except the stuttering
because of the slow CPU.

Am I missing something with this new setup?

Thanks!