I realize that this is more a Macintosh question than a Catalyst question, but both my catalyst systems are freezing...constantly. Need help!

Long story short, system 1 freezes & projects whatever is on the output & desktop screen after 3 minutes to 1 hour after bootup & running catalyst

System 2 will freeze at random times, but will blackout output. When this occurs, I will get usually a blue screen (no text) on my desktop (but have had a magenta & white screen on separate occasions)

After doing some research, it sounds like hardware failure. We have 2 drives on each system - SSD for OS drive & regular drive for content. We just swapped out the OS drives, and system 2 was seemingly fixed after extensive use this week. The problem came back today upon 2 days of system rest. We are going to swap content drives next and see if that is where the problem lies.

Has anyone had this system problem with their Catalyst or Mac in general, and if so some possible solution recommendations would be greatly appreciated.