My rig has been working all fine but the electricity was cut and when i rebooted it wanted to recover windows.. didnt really read what would happend but i had to install all the things once again.
After this I also tried to install one more 5830 because i had got my extender, but i couldnt really get it up running stable so i removed it, the soldering on that 16x extender was really crappy :S

Now my rig isnt stable, it works a couple of hours and then gets blackscreen.
2*5850, 1*5830
850W
Windows 7
Catalyst 10.11, 2.1 SDK

Is there anyway i could troubleshoot whats shutting my computer down? Which component dies, etc