Do you have the owners manual for the mother board? The USB and front audio connector are also labeled on the board. The audio connector is located along the middle back edge of the board near the PCI slots. The extra USB connectors are located on the same edge as the power, reset, speaker and LED connector towards the middle of that edge.
K8V SE Deluxe manual
http://www.asus.com/support/download...xe.pdf~zaqwedc