Why is pc restarting when I turn it on

Ok so I just receive my power supply from the warranty from ocz because it fried so they sent me a new one. The powersupply is an ocz 850w gold.

So I receive my power supply today after sending it for the warranty. I plug my power supply in making sure everything was plug in correctly and press the on/off switch on my pc. Then it turn on and off, on and off and kept doing the same every 5 second it will restarts.

I tried to unplug everything and replug it back but no success.

So here my setup for the pc.

Corsair r400
Msi p67a-g45
Corsair vengeance 16gb 1600MHz
Asus gtx 550ti
Msi gtx 580 twin frozr II
Seagate baracuda 1tb
Intel i5 2500k cpu
Corsair h60 cpu cooler
Asus dvd reader/writer
Ocz 850w power supply
1 answer Last reply
More about restarting turn
  1. something is shorting

    The first thing to try is the switch on the case .Unplg that at the motherboard and use the tip of a screwdriver , briefly, on the power pins to start it

    same? different?

    Also try the troubleshooting thread at the top of the forum
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