I just got my nuc5i5myhe today. I am using the 2 mini DP 1.2 ports to connect to two Dell UP3214Q monitors. The cables and monitors were previously connected to a desktop PC running Nvidia GTX 760 with dual mini DP connector and were confirmed to work fine. Both monitors have DP 1.2 (MST) enabled. NUC has been updated to firmware 0018 running Windows 8.1 Pro 64 bit fully updated and graphics software version 15.36.18.4156.
According to the technical spec (Intel® NUC — Technical Specifications) page 22 the DP connectors on this NUC can support 3840x2160 @ 60Hz. But I have been unable to achieve this. Here are some observations:
One monitor connected to either DP port: runs at 4K @ 60Hz
Two monitors connected to DP ports with DP 1.2 (MST) enabled: one monitor is disabled and the other runs at 4K @ 60hz. The disabled monitor cannot be activated in Intel Graphics software or Windows display control panel.
Two monitors connected to DP ports with DP 1.2 (MST) disabled: both monitors run at 4K @ 29Hz. The refresh rate can be changed to 30Hz
One monitor with MST enabled, one monitor with MST disabled: one monitor runs at 4K @ 60Hz, the other runs at 4K @ 29Hz.
What would it take to be able to run both monitors at 3840 x 2160 @ 60Hz as described in the tech spec?
Thank you!