Question PC Randomly Crash

[octans.sigma2]

Hello , so my pc randomly crashed after like 1-2 hours of playing games . I updated BIOS and all drivers.

specs :
cpu : I5 4460 3.2GHz
gpu : GTX 670 2gb
ram : DDR3 8GB
psu : Corsair VS650
mobo : Asrock H81 PRO BTC R2.0

 

[Dark Lord of Tech]

Most of the time random crashes are PSU.

 

[octans.sigma2]

The psu is brand new i bought it 1 week ago