So its intergrated video? You said i have tried both on board graphics and a card.If so remove the PCI card from the mobo .
See if you can get it operating with onborad video 1st.
You can look at the mobo to see what brand it is maybe
There should be some stampings or logo on it somewhere .
Try searching google with numbers that you find.You need to find out the manufacture of the mobo go to there website and download a manual so you can troubleshoot the board
Thermaltake Armor A90
Corsair HX1000W PS
i7 2600k / Cooler Master Hyper N 520
Asus P8Z68-V Pro / Gen 3
8 GIG Corsair Vengeance
eVGA GTX 570
SB Audigy2 Platinum
Kingston Hyper X120 SSD
WIN 7 - 64b
LG Blue Ray Super Multi Burrner
Logitech THX Z560
3x120mm - 1x200 mm case fans