Blank monitor

I have been having some of the strangest, at least for me, problems lately.

Here’s the present problem. I updated the motherboard in a desktop to an FM-A55M-E33 board. I installed W10 and everything was fine. I updated the computer to the latest version and now when the desktop is booted everything works fine until it boots past the BIOS screen then there is an “explosion” of color on the monitor and then the screen goes black.

I can connect the desktop to another monitor and everything works fine. I can connect the black screen to another desktop and everything works fine. But when I connect the black screen to the FM “desktop” after BIOS I get the “explosion” of color and the screen goes black. Any ideas.