My PC switches off when Gaming?

[DrRorschach]

I recently installed a gtx 970 palit jetstream to my computer. It runs fine with a lot of my games but when I play Planetside 2 on ultra after about 5 minutes my computer switches itself off. My power supply is the recommended 500w so I don't know why this is happening. Please help?

 

[okcnaline]

What PSU is it?

 

[DrRorschach]

What PSU is it?

I'm not really sure :/ it's enough to power the card but it came by default with my case so I think I might need a new one...

 

[okcnaline]

And what is the case?