Hi all, new to the forum, and need some help with my pc. I put this computer together two years ago and I have never had any issues with it until now. Basically my computer fully restarts when playing some graphic intensive games, without even giving me a blue screen of death. I have changed the setting to prevent windows from restarting with BSODs but I still don't get one. No dump files are generated by Windows either when I get these crashes. The games include a heavily modded Fallout New Vegas, heavily modded Skyrim, Distance, and F.E.A.R. (only when upscaled x3 using NVidia DSR settings). Some things to note: - No recent hardware changes - No recent drive changes - Tried running at stock CPU clocks, still crashing - CPU temps never go higher than 65 C - GPU temps never go higher than 65 C - MemTest shows no ram errors, all test passed - I suspect its either a GPU or PSU failure, however I have not seen any kind of graphical glitches or artifacts to suggest a GPU failure. Here are my specs: Power Supply: CORSAIR HX Series HX850 850W Motherboard: ASUS MAXIMUS VI HERO Hard drive: SAMSUNG 840 EVO 500GB SSD CPU: Intel Core i5-4690K Devil's Canyon Quad-Core 3.5GHz OC to 4.5GHz CPU Cooling: CORSAIR Hydro Series H105 GPU: GIGABYTE GeForce GTX 970 4GB Ram: G.SKILL Trident X Series 16GB (2 x 8GB) OS: Microsoft Windows 10 I have also attached my DxDiag report and CPUz and GPUz screenshots. Any suggestion would be greatly appreciated. Thank you!