I ran toleda script and it worked. Then it didn't. Turns out my audio cable has a short in it. So I'm not exactly sure if the toleda script was necessary as internal speaker was showing up before I ran the script. Anyhoo...works now. Thanks.
Hey guys, I have a very similar build:
OS X 10.12 Sierra
EVGA GeForce GTX-950
System definition iMac 14,2
I'm still working audio issues. HD Audio is not important to me, I'd be happy with 2-Ch stereo. Here's what I've done so far:
Fresh install of Sierra...
Success! I just upgraded my CustoMac to Mavericks from Mt Lion and have tried repeatedly to get iMessage to work (in both OS's). These four steps did the trick for me!
--My network cards were already en0 and en1
--I've never had an issue accessing the App Store