I've had a r9 290x lightning in my rig for a few years now and in the past year it's been playing up quite often. Temperatures while running games like rust can reach temperatures of up to 100 degrees Celsius. I begin receiving graphical glitches and anomalies in the game and within a matter of 10 seconds the game stops responding and I end up with a black screen.
It's certainly possible that the black screen is not a result of the temperature although that's all I can think of. I've tried decreasing the temperature by running all fans in my rig at 100%, I've cleaned out my case and GPU for dust and have not seen any other people experiencing the same issues with my card.
I've had it looked at by a PC store however I was told there was not a problem with it. I've been contemplating opening up my GPU and ordering some thermal paste to change it although I'm worried about having to replace and apply the thermal pads.
I have also updated all of my graphics drivers.
Any advice or recommendations would be greatly appreciated.