Worsening system failures occur continuously.
Worsening system failures occur continuously.
I don't believe it's the GPU causing issues; I think the PSU might be failing. I swapped the PSU to let in ambient air instead of fresh air from below. The PC sits on a desk without any obstructions, and stability has improved significantly. Before I changed the PSU and left one side off, the system worked fine for at least an hour. I haven't run it longer than that with the side off. The PSU is rated for 850 watts, but I'm only using about half its capacity, and the exhaust feels warm to the touch.