On my other PC the when it is started up no display appears on monitor. It stays in Stand-By Mode so it would appear that no signal is getting there or being received correctly. Have tried PC on 2 working monitors and no joy. Have also tried changing AGP Graphics card and still no joy. I now think this is a MB fault but before I rush out and buy one I am asking your advice and opinions.
Are you not getting any bios beeps? Could be a failed graphics card but if so I would expect some bios beeps at boot up. Also check the pins on the SVA D-dub plug. A slightly bent pin can prevent the output to the monitor.