There is not much info I can work with.
- Exact make and model of the system or motherboard
- Cables/Adapters used, DP 1.2?
- Monitors make and model
1. Windows 10 Pro
3. Precision 7910 - Current Configuration: Product Support | Dell US
4. 75ft HDMI 1.4 Cables (Machine is in an IDF to reduce noise and heat generation in room), Displayport 1.2 to HDMI 1.4 Adapters
6. Vizio M65-C1. Plugged into 5th HDMI port as it is the only one that supports 60 Hz.