Computer randomly freezes and requires hard restart

angrychewie

Reputable
Dec 21, 2015
1
0
4,510
I've had my computer built since August and have yet to run into any problems like this before. Basically, within the past day or so my computer will out of nowhere decide to become completely unresponsive. As in, the mouse/keyboard do not accept any input and the screen freezes in place. The only way to fix it is to hold the power button down and do a hard reset. It usually does the trick, but one time it went to the windows logo, then a black screen, and then it shut itself off. I'm not sure what's triggering this since I could just be browsing the internet, playing a game (nothing even intensive, either. just something like LoL for instance), or anything really. There's no slow responsiveness before it completely freezes, either. It just abruptly hangs out of nowhere. I ran Prime95 for a bit and there weren't any problems and I also ran the following commands:
Dism /Online /Cleanup-Image /CheckHealth
Dism /Online /Cleanup-Image /ScanHealth
Dism /Online /Cleanuo-Image /RestoreHealth
cleanmgr.exe

I also ran the windows disk cleanup tool and the windows memory test with no errors.

I downloaded 3D Mark through Steam and ran that as well. While the 2nd test in 3D Mark was running I took the side off my case to inspect fans and the PC turned off. There were 2 small fans on the side panel that I took off and idk if the lack of their cooling to the GPU caused the machine to turn off or if the GPU actually failed. I ran FurMark with the 1080p preset and it didn't fail. The temperature for FurMark got to just below 70C before the test ended and scored above a 5000.

My specs are as follows:
-i7-4790k (base clock for now)
-Cooler Master Hyper 212 EVO
-Asus Z97-A ATX LGA1150 Motherboard
-Corsair Vengeance Pro 16GB (2 x 8GB) DDR3-1866 Memory
-Samsung 850 Pro Series 256GB SSD
-WD Caviar Blue 1TB 3.5" 7200RPM
-Gigabyte GeForce GTX 980 4GB WINDFORCE Video Card
-Corsair CX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply

The monitor I'm using is an Asus VG248QE
My OS is Windows 10 (installed through 8.1)

Any insight into this would be very helpful!
 
Solution
If temps are OK, first thing I'd do is check things with another power supply, Corsair CX series are not very good quality to run a high end system on. Try one RAM stick at a time also.

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