need bigger psu?

Dschwartz95

Prominent
Jul 22, 2017
1
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510
i am wondering if i need a bigger psu to overclock to be safe or not?

Complete specs
I7 7700k 7th gen
zotac nvidia geforce gtx 1080 amp extreme 8bg video card
msi z270 gaming m7 motherboard
2 8gb g.skill tridentz RGB ddr4 3000mhz memory
samsung 960 evo series 250gb m.2 internal ssd
samsung 850 1tb 2.5 inch internal ssd
nzxt kraken x62 aio cpu liquid cooling system
2 nzxt 140mm fans
3 120mm corsair fans
1 140mm corsair fan
fractal design define s case

I am currently using an evga supernova 650 g2 psu. am i going to need to get a bigger psu if i want to overclock?