PC restart as soon as i launch any game, I think my PSU is faulty still not sure.

Nov 8, 2017
2
0
510
Hi guys,
few days back i had a power cut and there was a spark near my CPU i am not sure what burst but the MOBO is looking fine and also everything else. But when i start any game pc shut down and restart itself. So i started my troubleshoot. I did furmark on GPU it works for few min then pc shuts down. Now i removed the card and tried to run games they are working now on integrated graphic.
Still i am not sure is it PSU problem or GPU.
HWmonitor reading for +12V is 11.088V and it does not change even on load.
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PC specs

MSI GTX 960

16gb ram

i5 4690k

550W Antec power supply.

P.S PSU starts with weird noise when under load.

Please HELP!