Internal I/O Connectors
*** 3 x USB 2.0 connector supports additional 6 USB 2.0 ports you need two
*** High Definition Front panel audio connector
*** IEEE 1394 connector
COM port connector
CD audio-in connector
1 x S/PDIF output connector
CPU / Chassis/ Power Fan connectors
Chassis Intrusion connector
24-pin EATX power connector
4-pin ATX 12V Power connector
With CPU at top and rear connector panel on left your connections are along bottom of board.
Can you link a picture of the diagram in the MOBO manual?