PC hard resets when gaming

[LetsGolem]

Hi

 

For some time now, my PC will hard reset once every couple of days or weeks. This usually happens when gaming.

In Mass Effect Andromeda it mostly used to occur during the weapon select screen. Assassin'c Creed Unity crashed when I merely enabled fullscreen but worked perfectly fine the rest of the time. In Rainbow 6 Siege, Smite and Elite Dangerous it's less frequent. It happened only once when I was simply watching a Youtube video.

I tried running without the overclocks and reset BIOS/CMOS but that didn't help. Neither did de-dusting my PSU. It's not a thermal shutdown either, CPU temps are 60°C at max.

What could be the issue here?

 

Specs:

CPU: i5 6600K @4.2 GHz (plus a little bit of voltage)

CPU Cooler: Arctic Freezer 13

GPU: Palit GTX 960 @1484 MHz

MBO: Gigabyte Z170X-UD3

RAM: 16GB HyperX Fury 2666MHz

PSU: Sharkoon 650W 80+ Bronze

[Radium_Angel]

6 minutes ago, LetsGolem said:

Sharkoon 650W

There's your likely problem right there....

Buy a real power supply. Sharkoon PS's are not even in the bottom of the barrel lists, they are unrated garbage.

https://steamcommunity.com/discussions/forum/11/490123197949341028/

http://www.tomshardware.com/answers/id-1690970/corsair-sharkoon-psu.html

 

I'd start there for troubleshooting