PC total shutdown during load

Vladimir Enev · February 6, 2019

When I'm running my pc during load (valley benchmark) after about 40 minutes my pc shuts down completely: no lights, no fans, no noise as if I had pulled the power chord from the wall. After the shutdown the power button does not work at all as if there's no power at all. In order to turn on my pc again I need to flip the psu's button to the off position and then to the on position. After that the power button works normally. Is the cause the power supply? The wattage is enough on paper. Is there anything else that might be causing it?

Components are

Ryzen 7 1700 @3.9Ghz 1.35v

Palit gtx 1060 6g overclocked +180mhz, +500

Msi x370 gaming pro carbon

Corsair cx550m 550 watt

PopsicleHustler · February 6, 2019

It could be CPU overheating, what are the temperatures?

Vladimir Enev · February 6, 2019

4 minutes ago, PopsicleHustler said:

It could be CPU overheating, what are the temperatures?

CPU temps are 60-65 degrees C. I'm using a Noctua Nh u14s cooler.

Tsuki · February 6, 2019

turn off your overclocks and see if it still happens

Vladimir Enev · February 7, 2019

It seems to be stable in Valley benchmark with the GPU Overclocked and the CPU at stock. After I overclock the cpu to 3.8G at 1.3V it's stable for 2 hours in Prime95, however it crashes within 40 minutes in valley benchmark. Can the PSU be casing this? Valley shouldn't be stressing the CPU that much anyway.