I got the alpha version of Star Citizen to test out my graphics card and after a couple minutes of gameplay my computer would shut down. I tried this a few times at different resolutions and quality settings and I'd still experience the same issue. So I tried it with an already finished game, Fractured Space, ran it on high settings and experienced the same issue. My computer is shutting off after a couple minutes of gameplay and not restarting.
I've checked temperatures with Speedfan and Speccy, even bought a new fan just to keep the air flowing, got all three fans above 1000 RPM and yet the problem persists. Right before the PC shuts down my GPU hits around 65C. I've racked my mind over temperatures that I've beginning to think it could be something else. Perhaps my power? I'll differ to your judgement.
-Intel Core i5-6500 3.2GHz Quad-Core Processor
-Microsoft Windows 10 Home OEM 64-bit
-Corsair 200R ATX Mid Tower Case
-Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler
-Asus Z170-P ATX LGA1151 Motherboard
-Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-2666 RAM Memory
-Asus GeForce GTX 970 4GB STRIX Video Card
-EVGA 850W 80+ Bronze Certified Semi-Modular ATX Power Supply
-Sandisk SSD PLUS 120GB 2.5" Solid State Drive
-Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
Thank you very much for your time,