Unexpected shutdowns followed by no post

Forzzark

Reputable
Jan 31, 2015
30
0
4,530
Im having unexpected shutdowns followed by computer not posting, all i get is fans spinning and Dr Debug error 00 or 55 or sometimes it boots but shutdowns immediately, after a few minutes turned off it would work back on but will proceed to shutdown after a few minutes or hours of use.

I have tested different RAM but nothing changes.
SO i have norrowed it down to be a CPU, MOBO or PSU problem, what would be your best bet?

System:
i5 3570k
Asrock z77 Extreme 4
Ares G skill RAM
TX 650 PSU

I have also done CPU stress tests and everything is fine, good temps and else, and it wont necessarily shutdown under a lot of load
 

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