Is my 650W PSU is enough?

Feb 20, 2018
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hello guys,

I know this is a bit late and dumb to question this, but I just want to upgrade my 10 years pc and this is my future spec for my hardware:
CPU: Intel i7-8700K (already buy)
Mobo: MSI Z370 Gaming M5 (already buy)
RAM: Corsair Vengeance RGB 2x8GB 3200mhz (already buy)
VGA: GTX 1080 Ti (Still not buys yet)
HDD: Samsung 960 Evo M.2 250GB (already buy) + SSD 850 Evo 500GB (already buy) + maybe some oldshcool HDD (dunno)
Case: NXZT S340 Elite
CPU Cooler: Corsair hydro H115i (240mm)
Fans : 2x120mm + 2x140mm
and maybe some gaming mouse and keyboard in future (dunno)

and here the question, based on seasonic wattage calculator, it said that my build will consume around 460W so they the calculator recommend for PSU 510W and i already buy the 650W. However due to this is my first time to assembly this computer alone, so imkinda not sure if this PSU can give enough power, because went i see youtube, most of the build rarely use the 650W. So please can u guys help this poor little noobs ? ^^7
 
Feb 20, 2018
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what do u mean with "Are you feeling ok , if u need to run 100% at a time? no." ??
and this one "Try out a seasonic focus 650w for your build or evga supernova g3 or corsair rmx" that im still confuse what is it about ?
 
Feb 20, 2018
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This one : Seasonic Prime Ultra Platinum 650PD - 650W Full Modular - 80+ Platinum (i pick this because i saw in the review that "if in ur city the electric bill is kinda expensive, so pick above the gold" so based on that i pick the Platinum one)

why ?
 
Feb 20, 2018
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Hahaha well im still noobs, so maybe i OC only from afterburner alone, and yeah im only can have 1 1080 ti (due to budget) lol ... but maybe in the future i can buy more 16GB so i can get that 32GB RAM lol ... if my psu can support it hahhaha
 
Feb 20, 2018
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wew really ? well because this is my first time to assembly this pc on my own, so im kinda nervous, and due to in my country to buy costume made part gaming pc is quite expensive, so i must brought the part from many vendors hahhaha ... hope all of those are compatible each other hahhaa ...