Pc restarts while playing

[ugnius225]

Hi, so recently my computer started acting weird. Lets say im playing pubg, I play about 10 minutes or so and the computer just turns off then it tries to turn on again but it just turns off again and it goes on like 5 or more times, the same thing happens in csgo. First I thought it was my temperature but it was always at ~65C gpu and ~60C cpu I tried cleaning my computer aswell but it didint help, so I think it might be a problem with something else not my temperature.
CPU: Intel Core i5 4460
GPU: NVIDIA GeForce GTX 970
Ram: 8.00GB Dual-Channel DDR3
SSD: Samsung SSD 840 EVO 250GB
MOBO: ASUSTeK COMPUTER INC. Z97-P
PSU: FSP Hyper 700
I will appreciate every suggestion!
Thanks!

 

[popatim]

Do you have another PSU you can test with? The FSP is an older group regulated PSU and could be near the end of it's life.

 

[ugnius225]

Do you have another PSU you can test with? The FSP is an older group regulated PSU and could be near the end of it's life.

Sadly I dont have another psu to test it with, but my psu which im using right now is about 2-3 years old.

 

[mdd1963]

PSUs failing under a load (gaming conditions generate a healthy load on PSU from CPU and GPU) is common...

It would be a logical first thing to try....

A new Corsair 600 watt unitis only $50 or so...