clutchc :
It could be the PSU. Zalman's aren't very good. Plus, I believe that model is the lower end one. And with +12V rails rated for 22a and 20a (440W), it is a bit marginal for a 500W. If you are OC'ing the GTX 1060 6GB, that will push the load up fast. Does the shutdown/reboot occur when gaming or doing other intensive tasks?
Actually i'm never trying OC'ing my gpu.
It happened when i was playing WarThunder. But this is the first time it ever happened to me. I played CSGO before that and it was ok till i play WT.
///Update///
Just checked Event viewer. Bloody hell i shouldn't have taken this psu.
Except the one on May 17th which is my problem, others occurred while i was booting the system (it took longer than normal to start)
Critical 17/05/2017 8:59:56 SA Kernel-Power 41 (63)
Critical 15/05/2017 5:40:46 CH Kernel-Power 41 (63)
Critical 15/05/2017 5:28:11 SA Kernel-Power 41 (63)
Critical 09/05/2017 1:40:37 CH Kernel-Power 41 (63)
Critical 06/05/2017 5:29:51 SA Kernel-Power 41 (63)
Critical 02/05/2017 5:47:19 SA Kernel-Power 41 (63)