I figured it might be an issue with the cards so I did the whole disable/enable in device manager and now I have a card that whenever I do that it comes back up with error 43. I also have a card that whenever i reenable it the whole system crashes....
Man alive you're just not having great luck here....
I would format and reinstall. And follow that blogspot guide exactly. Don't install any other software device type software. Just AMD, and only the first option. The driver.
Maybe hold off on flashing the BIOS too. I didn't do that and 1950h/s is pretty good for just adjusting settings in Overdrive and Reg edit.
Also, maybe just start with 4 vega. I started with three. Got it working, then added in a fourth. It just required running the AMD driver install again, and then doing the reg fix for that fourth card. So if you get 4 working at 1950h/s then you can add the other two.
Can you do it all via on board graphics too? I think that makes things easier. If they crash you don't lose your display.