Unable to get any output from the HDMI

I have been trying to setup my UP2 following the quick start guide. I have installed a Windows 10 bootable USB drive, connected a USB keyboard and mouse, connected the supplied HDMI cable to the UP2 and a monitor, and connected the power supply to the UP2 and switched on.

I then waited for the UP BIOS logo for over 30 minutes without any sign of any output. I then switched off the power and changed the HDMI cable and switched the power back on and again waited for the BIOS logo to appear to no avail. I also tried a different display without any luck.

Is there something I'm doing wrong?

Any help would be gratefully received.