27" Cinema Display Windows Drivers
I have that exact same motherboard I purchased less than a month ago. With default BIOS settings, you're right it doesn't work, but I got the 27" display to work fine without installing bootcamp drivers.

Make sure you've updated all your drivers and BIOS, especially Intel Graphics 4000 and install Virtu MVP in order to use a discrete graphics card with the thunderbolt interface for gaming/performance. Make the following adjustments to your BIOS (hold delete on boot to access BIOS settings.) Obviously, you might have to plug in a non-thunderbolt display to be able to change the settings.


Internal Graphics: Enabled
Init Display First: IGFX or PEG (not PCI)


I believe there's also a setting for Thunderbolt Bandwidth which I changed to 40, but I'm not certain if that's necessary to change to get it to work.