My PC started having this problem recently. Whenever run any game or benchmark tool, my PC hard resets, i.e. completely poweroffs and then restarts after about 2 seconds. No BSOD and nothing in the event log. The only error in the event log corresponding this the reset is a Kernel Power event which means that the system lost power unexpectedly.
The reset occurs only when 3D portions of the game run, for example, when I run Skyrim, it will start and will load, however once loading completes and the moment the 3D visuals appear, the PC resets. However, if I run older games like Unreal Tournament 99, there is no problems and I can play indefinitely. I also tested Uningine Heaven benchmark, the loading screen appears and the visuals last for about 1 second before resetting, even in windowed mode. Tried FurMark and same result.
I thought that the GPU might be to blame and checked the temperatures on the GTX 970 and I found that it was around 35-40, not enough to cause overheating. Similarly, my CPU temperatures never exceed 40-50 on 100% load (tested with SuperPI). Therefore, overheating is not a problem. I replaced the GTX 970 with my old ATi Radeon HD 4850. This time, FurMark benchmark ran its full course. However, when I ran TF2, the PC reset.
I am guessing that the PSU or the Motherboard are the culprits, I am not sure which. My PSU (Corsair TX-650M) is about 1 year and 10 months old and I don't think it should lose efficiency so soon and I don't know how to test the motherboard to see if it's causing the problem. My whole system (except the PSU) is pretty new since I purchased it last month only.
Any advise?
PS: Full config in signature. OS is Windows 8.1 Pro.
PPS: No problems when using onboard graphics.
The reset occurs only when 3D portions of the game run, for example, when I run Skyrim, it will start and will load, however once loading completes and the moment the 3D visuals appear, the PC resets. However, if I run older games like Unreal Tournament 99, there is no problems and I can play indefinitely. I also tested Uningine Heaven benchmark, the loading screen appears and the visuals last for about 1 second before resetting, even in windowed mode. Tried FurMark and same result.
I thought that the GPU might be to blame and checked the temperatures on the GTX 970 and I found that it was around 35-40, not enough to cause overheating. Similarly, my CPU temperatures never exceed 40-50 on 100% load (tested with SuperPI). Therefore, overheating is not a problem. I replaced the GTX 970 with my old ATi Radeon HD 4850. This time, FurMark benchmark ran its full course. However, when I ran TF2, the PC reset.
I am guessing that the PSU or the Motherboard are the culprits, I am not sure which. My PSU (Corsair TX-650M) is about 1 year and 10 months old and I don't think it should lose efficiency so soon and I don't know how to test the motherboard to see if it's causing the problem. My whole system (except the PSU) is pretty new since I purchased it last month only.
Any advise?
PS: Full config in signature. OS is Windows 8.1 Pro.
PPS: No problems when using onboard graphics.
