This message was posted on behalf of Intel Corporation
I would need to collect more details of your system before given to you an answer. The NUC supports below resolutions:
HDMI 1.4: 4096x2304@24Hz
DP 1.2: 4096x2304@60Hz
Let me know if you are using a straight miniDP to DP cable, the amount of memory sticks and I would appreciate if you can send to me the results of Intel® System Support Utility.
How to attach a file:
-Click on reply
-Click Use advanced editor (upper right side)
-Click Attach (lower right hand)
Just to confirm, when you refer to 4K, you mean 4096 x 2160@60Hz or 3840 x 2160 @ 60Hz
To get my display port to work at all I purchased a Club3D Mini Displayport 1.2 to HDMI 2.0 UHD (CAC-1170) .
Supports Display Resolutions up to 3840X2160 at 60Hz
DisplayPort 4K 60Hz works fine for me, although HDMI is limited to 30Hz.
A good quality cable should be used for 4K 60Hz.