[Ty Auchter]

Make sure your chipset drivers are up to date. Same goes for the onboard sound... Also check your BIOS to make sure it's enabled. You might want to try clearing your CMOS and see if that brings everything up to speed as well.

 

[The Duke]

Do you have all the appropriate power connectors attached to the MB?
Also... you say OB sound but I see a "Steel Sound USB" which may cause a conflict if you are mixing analog and USB sound devices. Try removing the "Steel" and see if the issue is resolved. If so check with the mfg. for that issue.