Pc restarting issue

Arkon7

Commendable
Nov 30, 2016
2
0
1,510
]FX8350 4.0MHZ STOCK
MSI 970 GAMING
16 g.skill 2x8 2133mhz
EVGA 650w
MSI GTX 960 4GB
COOLER MASTER 212X DUAL FAN
1TD WD
240 Toshiba SSD
Windows 8.1
Corsair carbide spec 03- Added 2 extra case fans which makes the total of 6 fans in the case including cpu fans making good air flow.

So i keep getting this occasionally reboot problem whilst im gaming it does it even though i changed the setting to not reboot from a system error,When i play overwatch it reboots in the first game,but when i play other it takes longer time like 1-2 hours.I have pinned out a few things that are not causing the fault.

Cpu doesn't reach over 45c under load and a stress test it with Prime95 and it fine its not temp issue.

I made sure the gpu was stress tested with a 3D benchmark and it still does not reboot at the time plus the temps doesnt reach 55-60c under load due to afterburner.Have took it out and sat it back again still same issue.

Memtest86 the ram and windows ram test both pass

Fresh format with nothing but sone games and monitering apps

Both hard and ss drive tested to see if they had any problems and they passed as well.

I seriously cant understand what the problem is as the only hardware problem left is the power supply.Could it be a software issue.?
Thanks for your time.

Should i get it changed,Still under warranty.