I can access it however it is asking for a license key inside the remote control tab. The rest is accessible. Unfortunatel I do not have this nor am I sure I am able to purchase. I will see if Gigabyte themselves is able to provide it and how much it may cost.If you can access the IPMI interface, use the Remote Control tab there and you can control the server remotely without needing a directly connected monitor (as your video card/VGA reference). You can reboot and check/change BIOS settings through that interface.
Some ipmi boards can share a single port and this is basically invisible to the os.
The odd thing is this board has 5 Ethernet ports but one is only 100Mb vs the others gigabit. I also believe it is designated as the IPMI port. I will dig back in the manual to verify when I get a break at work.