I'm having problems to activate multi-gpu with my gtx 690. When I activate it a black screen covers the screen with the message "No input". Other issue is that I can't turn the refresh rate more than 85hz. I'm using 340.52 drivers.

Thanks for the reply.sammy134 wrote:this problem happened with a friend and his korean monitor and it was the display port. Try to get a 1.2, spend like 20-30 bucks on a decent quality one. if it doesnt fix the problem, return it