One of them (F2_1394) connects to a supplied expansion slot cover, which also houses 2 USB ports. The other (F1_1394) is meant for a front FireWire connection.
My case came with Firewire front connectors built in so I went to connect the cable as specified. Lo and behold it didn't work, however if I plug it in as specified into the other connector it does work.
So what I'm asking is that if anyone has one of the optional Gigabyte FireWire connector cables, could they post the pinout. It would be the same for all Gigabyte motherboards.
I'm beginning to suspect that Gigabyte deliberately puts false or misleading information in their manuals to force customers to buy the official product. The listed pinout to the game connector leans towards gibberish and the actual wireing to the D15 connector is a tangled mess.
[ A B ]
[ C D ]
[ E F ]