I was on my computer then all a sudden I shut down and I couldn't turn it back on

Bluey12345

Honorable
Jan 21, 2013
29
0
10,530
I was on my custom built PC today just playing euro truck sim 2 and all of a sudden my computer just turned itself off. I tried turning it back on . It would start for half a second then die. I tried unplugging and replugging the psu. But it still wouldnt work. The mother board was getting power still because the on switch on was still lit up.
My specs:
Intel i5 3570k (stock heatsink)
8gb ram
Msi 7770r graphics card
Gigabyte Z77-ud3h mother board
500w power supply
Win 7

It would be much appreciated if you could help me.


Thanks
Wil


Btw I'm from Australia