question about the firewire connectors

[djm227]

The MOBO i got, here, has two interior 1394 (firewire) connectors. And the case i got has one firewire port with connecting wires.

Now what concerns me is that in the motherboard manual it labels the header with these: Ground, Ground, Ground, +12 V DC, +12 V DC, TPB-, TPB+, TPA-, TPA+.

But the cables that come from the case are: Ground, Ground, TPA+, TPA-, TPB+, TPB-, VCC

So what about the extra ground and the two +12 V DC connectors that the mobo has? and where does the VCC cable go that comes from the case?

thanks alot, a little confused about this

[glc]

VCC is +12vdc. Ground is ground. Not all posts on the header will be used.