Computer turning off while gaming

Rich Pitchshift

Honorable
Aug 15, 2012
34
0
10,530
My computer has recently started turning itself off while gaming. When it shuts down I am unable to power it back on via the power button on my case. I noticed the last two times it happened I could see the motherboard power switch still lit up. I removed the side panel to try power it on using that and as I soon as I removed the panel it turned itself back on. My CPU temp is usually around 50°C and GPU temp is around 60°C while gaming.

Specs:
Motherboard: Gigabyte G1.SNIPER Z87
CPU: Intel Core i5 4670K overclocked @ 4.3GHz
CPU Cooler: Alpenföhn Brocken
RAM: TeamGroup Elite Black 8GB 1600MHz
GPU: MSI Nvidia GTX 970
PSU: EVGA SuperNOVA 750w

Here's a screenshot of HWMonitor while gaming. And here's a screenshot of the my mobo system status with voltages. Please can someone offer some advice on how I pin point the fault?
 
Solution
It could be a temp issue, the overclock, the GPU or the motherboard. So:

1)Undo any overclocking you have done and return the system to its default clocks.
2)Try to test your system with another PSU.

If nothing of the above works then you need to test your system with another GPU. Good luck.

EDIT. Stress testing different parts of your system may also help you pinpoint the part that is responsible for your issues but get to that only if you have done the first 2 steps because a failing overclock or a faulty PSU won't allow you to jump to safe conclusions by stress testing your components.
It could be a temp issue, the overclock, the GPU or the motherboard. So:

1)Undo any overclocking you have done and return the system to its default clocks.
2)Try to test your system with another PSU.

If nothing of the above works then you need to test your system with another GPU. Good luck.

EDIT. Stress testing different parts of your system may also help you pinpoint the part that is responsible for your issues but get to that only if you have done the first 2 steps because a failing overclock or a faulty PSU won't allow you to jump to safe conclusions by stress testing your components.
 
Solution