I turn pc on it shuts down,then turns on and of

  Ken Dunning 10:55 15 Nov 2016

i turn pc on it shuts down,then starts on its own several times then shuts down again?

  Govan1x 12:18 15 Nov 2016

Probably either overheating or new PSU required.

Have you cleaned the inside of the computer out recently if not start there. Clean around the fans and especially make sure that their is no fluff or dirt in the heatsink.

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