Computer randomly turns off

Unstable Spider

Honorable
Jan 12, 2014
140
0
10,710
Hello I upgraded my PC 2 months ago by upgrading my Case to a CM Storm Stryker, and my PSU to a Corsair AX 860. The PC ran fine for about 1 and a half month, but now it turns off randomly. When it turns off sometimes it tries to reboot, sometimes it successfully reboots, sometimes the PSU turns off as soon as the computer turns on. For it to boot again I have to turn off the power of the PSU and turn it back on, then it will work again fine, but will again randomly turn off at some time. This happen randomly, sometimes when just browsing on the web and sometimes playing games. I do suspect that it is a faulty PSU, as this started happening as soon as I got the new PSU which was the only "real" hardware upgrade. I've talked to Corsair's Customer support and they said it's most like a faulty PSU. What do you guys think? And no it isn't overheating I check my temperatures all the time and on the highest load it can get on the CPU only gets to 60 Celcius and on games it's on 35-45 Celsius, the GPU stays on 60 Celsius max.
Everything is at stock
Here's my full build
CPU: i7 4770K
GPU: GTX 770 Windforce Cooler
RAM: 16 GB 2133 G-SKill Ares
Motherboard: Gigabyte GA Z87X-OC
SSD: 250 GB Samsung 840 EVO
HDD: 3TB Seagate Barracuda
CPU Cooler: Antec H20 920
Radiator fans: 2x Corsair SP 120 High performance Edition
PSU: AX 860
Case: CM Storm Stryker