The antec 900 fan connectors don't seem to fit into any ports on the gigabyte ep43-ud3l motherboard.
ALSO the power sw, reset sw, and HDD sw wires dont seem to connect any where on the gigabyte motherboard either.
The case fans use molex connectors. I set mine on LOW and plugged them into the PSU.
The front panel connectors? RTFM.
But the year is still young so...
The front panel connector is described and located on the drawing in Section 1-7 Internal Connectors. It's labeled F_PANEL.
Other comments about the Antec 900 case: I like them. I have three. Great cooling. Cable management could be better. I modded my cases with extra holes cut into the motherboard tray:
Antec 900 case mods for cable management: http://www.tomshardware.com/forum/264112-28-antec
It just aggravates me a little that I have to do something like this.
The 900 case fans are molex and connect to your power supply, not the motherboard.
The case connectors (power sw, reset sw...) connect to the motherboard to the specific pins in the black box next to the IDE connector [neon yellow connector on MOBO] ( review the picture and read manual... http://www.newegg.com/Product/ImageGallery.aspx?CurImag... for specific location to plug each in)