Summary: After a lot of video problems with this, I concluded that it isn't compatible with my Radeon 7770 card. And I found out later that it wasn't just with the 7770, but any discrete video card (tried the Gigabyte R7 260X). One worked only for 10 mins or so, and one card didn't work at all. I had no problems if I used internal graphics though. I'm using an i7 2600K CPU. The CPU works fine with those graphics cards in other motherboards, but not this one.