Originally Posted by Mister Floppy
I will try generaleramons newest mod and report back. Stay tuned :-)
It could just be the card overheating some how... All video cards, AMD or Nvidia will drop monitor signal, black screen, and throw fans at 100% until you hard turn the computer off if they overheat too far. It's a failsafe mode typically. Unless I'm misunderstanding, I think in one post you said it was hitting 93c. AMD cards are rated for up to 95c typically but.. anything in the 85~90c range is close to the "emergency thermal black screen" mode.