It POSTS! So yeah it was the stupid motherboard. That motherboard has always given me grief with GPUs. On a new motherboard and CPU now.
Surprisingly my Linux install actually boots, but the resolution is all messed up, it thinks it's a laptop so I got some funky resolution going on. I might google to see if there is a quick fix otherwise I will install Kubuntu like my plan was, I need to upgrade to a newer distro anyway.
Not out of the woods yet though I still didn't try connecting the 2nd monitor... but one step at a time.