I have two monitors I would like to set up.. One is connected by a DVI to my graphics card, which is my main display and is working fine & the other is connected to a VGA port located on the motherboard.
The VGA monitor won't come on, it stays on stand by mode.
More aboutdual monitor troubleshooting
Onboard graphics are most always disabled when using a dedicated graphics card.
If your graphics card has a VGA output, connect the second monitor to that instead.