1.Afaik sound is not affected by the smbios value.
3. It's normal behavior when one has boom installed. Try uninstalling it, maybe something is bugged with boom.
About the codec thing: http://www.projectos...p?showtopic=465 but it should be the last option.
Go to utilities > Audio MIDI Setup make sure Output has those 2 icons next to it.
Thanks DoiX. Tried all that, uninstalled Boom, two icons next to each other, but still no sound!
Option 1) Voodoo HDA
Option 2) Patch AppleHDA myself?