My computer shuts down everytime I play a game and after a few sec boots up again

[Cookiemoonster]

My computer shuts down everytime I play a game . It does not shutdown strait off , it shutsdown wile I am playing the game and Its not like a normal shutdown it just dies and a few sec later boots up again without me doing anything.

My specs

CPU: Intel core i 5 3570k 3.4Ghz
RAM: 8 Gb corsair value select 1333Mhz
GPU: Gigabyte nvidia GTX 550 Ti 1Gb DDR 5
Motherboard: Gigabyte GA-z77x-ud3h
PSU: Huntkey HK600-600w psu

 

[zink1701]

It could be overheating, Download real temp or other prog and monitor your GPU and CPU temps. Use Prime95 to stress your CPU if that is ok then use MSI kombustor or other program to stress your Graphics card. Keep a close eye on thermals. Stock settings then CPU and GPU should not exceed 75-80c