I may have spoken too soon. Randomly got super bad lag just opening a Youtube video. Then later on performance tanked so bad as soon as I opened the Start Menu, the mouse cursor was moving at what felt like 1FPS The only apps I had open at the time was a remote desktop session, Putty (ssh client), Github Desktop and Latencymon. Latencymon reported what looked like 14 SECONDS due to nvidia's driver and in Task Manager I saw Desktop Window Manager spiking up to 90% GPU usage. I was about to reboot, so closed Remote Desktop and as soon as I closed it, my rig completely froze. All my temps were fine, all the air coming form GPU, PSU and CPU were not even warm.