Had several crash to black screens today, popped open my case while up and running to find the fan not spinning at all.
- Fan spins momentarily on boot (~1 second)
- Fan then stops
- Play game, temp goes > 100degC
- Card panics, screens go black, system locks up and fan spins at 100%
I'm running the latest driver 358.91 - WHQL. Been doing so for around a week, this only started happening today.
As a temporary fix I'm thinking of hooking the fan directly to the PC power supply.
Screenshots from NVIDIA tools under linux, issue present in both Ubuntu and Windows 8.1: https://i.stack.imgur.com/CBkC3.jpg