PC shut off and won't turn back on

Apr 10, 2015
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My PC suddenly shut off and won't turn back on. Lights are still coming from the MB and gpu. The PC has worked fine for almost a month now. The specs are:

Corsair CX650M
I5 7600k
Corsair Hydro Series H75
ASUS Prime Z270-P
Crucial DDR4 2400MHz 16GB
ASUS GeForce GTX 1070 DUAL OC
Samsung p961 ssd 256gb m.2