Recomended PSU for my Zotac GTX 650 ti boost

[Yulius Arafat]

guys, would you please help me. my specs are

gigabyte b75
core i3 3220
corsair vengeance 1x4 ddr3
zotac gtx 650 ti boost
hdd seagate 500gb
case infinity k-50 (6 fans+led)
dvd combo
enlight black 500watt

I experienced pc restarting while playing battlefield 3 and metro last light on preset high-ultra. The game was running smoothly and no lag at all, but after 5 minutes gameplay it starts to restart, even on low preset.
I have checked the gpu and cpu temp, all are normal between 40-60 during the game.
Do I have problem with my PSU, or do I have to upgrade my PSU? what brand and type do you recommend? thanx lot guys

 

[rattlehead2112]

seasonic s12ii 520w
corsair cx500

 

[Yulius Arafat]

seasonic s12ii 520w
corsair cx500

Is that means my enlight 500 watt doesn't has the same "power" with corsair cx 500 watt?
they have the same 500 watt output dont they?

 

[rattlehead2112]

seasonic s12ii 520w
corsair cx500

Is that means my enlight 500 watt doesn't has the same "power" with corsair cx 500 watt?
they have the same 500 watt output dont they?

No it isn't that, it's just that these are worldwide trusted and reliable power supplies which do not fluctuate and cause power related problems