To give you more feedback on regular troubleshooting these kinds of things,
When monitors change color, this is a sign that your video output is being muffled, this can happen by a few things,
1 - Your graphics card drivers are outdated and have some sort of bug, consider trying to update them if there is a new version out.
2 - Your graphics card is in an unhealthy state, where it is trying to process as much data as it's receiving, but for some reason it cannot keep up. Please note that I am aware that the graphics card you are testing with is in simple terms "A BEAST", but when something goes wrong the beastliest can become the crappiest, easily.
3 - Your main board gpu port might be either burning inside (when you have abused the socket alot, this is prone to happen, you will see darker color around some of the "pins"), to check you have to physically remove the gpu and inspect the gpu port (PCI-E)
4 - over heating of some components can also cause this issue, this can be related to one of the following components, GPU, RAM, Main Board, or HDD
If these are not the issues, reply to this thread and I will give you some more things to check,