Use the lime green port for speaker out. If you get no sound, check windows device manager to make sure all your sound drivers are installed. If not, they may have a mark next to them.
no thats not what i meet i meet on the mother board. i have a red and black cord that has speaker riten on it. in side the computer and i would like to know were i need to connect it to the mother board
Download the manual if you don't have it. The board is on ecs website under socket 754. The 4 pin sound connectors from the cd are marked 20 and 21; CDin is number 21 on the chart. It's located near the corner away from the back ports near the pci slot and the brown slot.