So i was trying to connect a Wii mote to my computer and for the life of me it wouldn't detect it, it only detected it if I brought it up close to the case. Even when I did that it would detect it momentarily. After about 2 hours of scratching my head finally a light bulb went off... "aren't most BT signals piggy backed on to the Wifi." I looked in the manual and surely enough the wifi and bt share the same IC. As soon as I connected the Wifi adapter that came with the board the PC was able to detect all the bt devices I tried previously, phone, keyboard, and the wii mote.
Thought I would post and tag so the next person that is looking for this solution knows what to do. I assume this applies to all Formula, Maximus, and Rampage boards with a wifi antenna, more than likely your Bluetooth is piggy backed on that antenna and you need to plug it in to get better reception.