1. Yes it does still work, I can hear sounds and everything. The power to the monitor stays on as well but no back light. I turn the monitor off and back on and it fixes the black screen.
2. Yes I do but it is disabled, currently running an NVidia 650 GTX
Ti.
3. I would, but I don't have another monitor.
4. Yes, I had it running on a VGA and it's currently running on a brand new HDMI cable.
I've been researching the hell out of it.... I went out and bought a new GPU as well because mine was like 6 years old and I needed to upgrade. It still black screens randomly, I checked all my voltages and they are perfectly fine. I checked how much power my PSU is using and it's only using 1/3 of it's max so it's getting plenty of power. The mobo isn't over heating and causing the GPU to not respond. The only thing that's really left is the monitor. I've checked every other variable.