Intel NUC NUC5i5RYH with Intel Core™ i5

16 GB Ram

Windows 7 64 Bit SP1

Montior is DELL 3007 WFP-HC

DVI-D (dual link) with HDCP

Cable to convert from MiniHDMI to DVI:

Mini HDMI to DVI-D Cable 19 Pin HDMI (C) Male to DVI-D Male - 1920 x 1200 Video

As you can see in title I'm only getting 1280 max res, which is very pixilated on a 30" monitor.

I downloaded the latest graphics drivers from Intel.

What could be the issue? The cable? The monitor? Intel Motherboard won't support?

Thanks for any help.