My graphics card seemingly stops outputting a signal and I'm forced to restart the computer (replugging the HDMI cable does nothing). I'll be watching Netflix (can't overheat off Netflix!) or playing a game and then my monitor randomly loses signal and goes to sleep. I can still talk to my friends on Discord (voice chat), so the computer is still functioning. I take a screenshot every time it does this and I haven't seen any error messages except once when I was running 'Windows Experience Index' and it said: "The NVIDIA GeForce GTX 670 device is not removable and cannot be ejected or unplugged".
I should mention at my old house it worked flawlessly. So I figured it was a electrical grid issue and I bought an Uninteruptible Power Supply, which all my components and LAN cable connect to. Did not fix the issue.
In Windows Event Viewer it was saying "the Display driver "nvlddmkm" stopped responding and has successfully recovered." so I set the TDR-Delay to 8 seconds (from 2) and underclocked my memory and core by -100. Now I don't see that error in Event Viewer but the issue still occurs. Considering disabling TDR entirely?
Here's the what I'm getting in Event Viewer now after the monitor stops receiving a signal (Administrative Events):
Something is causing the GPU to stop working and then it's unable to recover, as I understand? Any ideas about how to fix this or at least get the GPU to successfully recover in a couple seconds (much better than hard reset of computer).
I've checked wiring, temperatures (GPU max 85C in hardcore game), ran memtest, GPU/CPU benchmarks for 15+ minutes and like 500 other things. Don't know what to do!
Here's my PC specs:
Operating System: Windows-7, 64bit (Desktop)
System Model: Alienware X51 R2
BIOS: 07/13/15 11:13:58; Ver: 04.06.05
Processor: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (8 CPUs), ~3.4GHz
GPU: NVIDIA GeForce GTX 670