"I am getting no sound from my Logitech X230 speakers. My FP_Audio connector has nothing plugged into it so I think this it the problem."
Well, strangely, on my Asus A7V600-X the onboard sound works fine without audio cable to either the DVD-R or DVD-DROM drives.
Presumably the onboard sound is enabled in the BIOS and the drivers are installed? Does the Device Manager in Windows show any question marks against the sound devices?
If everything appears to be installed properly, perhaps the lead from the speakers to the sound card are wrong? Could try experimenting with them, I suppose.
Not sure if this will be of any help, but might prompt someone else to come up with a solution. :-)