PC Shuts Down after game loading screen

-NVIDIA GeForce GTX 550 Ti
-Intel Core Quad 2 6600 @ 2.4 GHz
-MB is Gigabyte EG41MF-US2H
-PSU 500W
-Windows 7 unoffic

About 14 days ago my PC started to shut down after I could see the first frame of the actual game after the loading screen (World of Warcraft and World of Tanks), this was happening 50% of the time. Then it got better for no known reason. I started playing WoW retail, but after around 1-2 hours of playing I started to have low fps, down to 1-10 max, then I had to restart the game and it usually got ok for another x hours or less then hour. I thought maybe the problem was the recent gpu driver I installed which was only beta. So I uninstalled, I actually found one that Blizzard itself recommends for this gpu and WoW, I installed that one and since then 95% of the time I start up WoW or Left4Dead 2 right after loading screen my PC shuts down (I usually can see the first frame of the game) and I'm not able to start PC again, unless I turn of my PSU for 10 seconds and then turn it on again. Gpu, cpu, MB temp is ok.

Thanks for any response.
4 answers Last reply Best Answer
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  1. Best answer
    My guess is it's a dying PSU if the temperatures are okay.
    What's the make/model of your PSU?
  2. Maxpower PZ-500.I couldn't even find proper link on the internet. It's really average one. I already ordered new one, so I hope it will solve the problem. I will confirm it here after I get the new one. Thanks for your response :)
  3. Everything is ok after I changed the PSU.
  4. Good:D
    Have a happy new year!!!
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