My gaming pc keeps crashing and shutting off when playing games

[Iamthewalrusss]

I have:
Intel Core i7 3770k
EVGA Geforce GTX 780 3GB
16GB RAM
Windows 7

My computer crashes even when I play small games on max settings like minecraft

 

[Suztera]

What is your PSU? Brand? Wattage? Amps on the 12 rails?

 

[Iamthewalrusss]

What is your PSU? Brand? Wattage? Amps on the 12 rails?

Corsair AX760 760 Watts, This is my first build so I kind of confused.

 

[Iamthewalrusss]

What is your PSU? Brand? Wattage? Amps on the 12 rails?

I don't know the amps

 

[Suztera]

What is your PSU? Brand? Wattage? Amps on the 12 rails?

I don't know the amps

Ok, so your PSU should have enough power for your pc.
Have you checked that you have plug in all the connectors correctly?
Also did you plug in all two cables into the GTX 780 - the 6 pin and the 8 pin as well.

 

[dtlltd999]

check your temperatures using speccy or something

 

[Joelsjet]

Expanding on dtlltd999, download specy and play some games that normally crash it while watching the temps, if any temps get to 100 Celsius than thats your problem, if it is the cpu overheating i would recommend reaseating you cpu and see if that fixes it.