I tried to turn my computer on today after using it just the night before, no signal to the monitor. Power is plugged in, using HDMI connection to the computer. I tried 2 different monitors, I also tried a DDI connection to both monitors as well. When plugging in and out of monitor it says no connection or no signal (when plugged in). When plugging in and out of the computer, it says nothing. I swapped which port my graphics card was in and nothing changed. My friend thinks it may be my motherboard. I don't keep up with what specs I bought for my computer except on the actual computer....so I'm having a hard time remembering what I have. I know I have an AMD 3 motherboard. A Nvidia 900 series graphics card. And a Benq 2440 monitor. Can anyone help me solve this?