I just purchased 3 X9SCL-F motherboards and I am trying to assemble them in my Lian Li pc-v351 case. I have 3 connectors, from the case, that I am unable to find the connectors on the motherboard and hope you can point me to the correct location. The 3 connectors (from the case) are the HD Audio, AC97 and the 1394 connectors. All 3 connectors are “8-pin” connections.
The X9SCL-F motherboard does not have on-board sound and does not have IEEE 1394 firewire. So all three connector in front of your chassis is not in use unless you add third part sound card or IEEE 1394 firewire card.