PC not booting

nikhilmitta

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Apr 1, 2009
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cpyI just replaced my mobo and along with RAM.
The system will not boot up.

It starts, with the fan running for 15 sec and shuts down. 5 sec later it restarts automatically and the sequence repeats.
The power button on the mobo glows red and there is some sort of a numeric led display on the other end of the mobo which shows 51.

What could be the problem.

I replaced q660 and intel mobo with the 3570k and gigabyte z77x ud3h.

Thank you.