Are 650W enough for my PC?

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andreauge

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Jun 20, 2017
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Hi guys, here it is my configuration:

-ASUS ROG Z270E Gaming

-i7 7700-k 4.2Ghz

-ASUS ROG Strix GTX 1080ti 11GB

-G.Skill RipJaws DDR4 3000mhz 16GB 2x8

-additional fan for CPU

-WD Black 1T 7200rpm

-Samsung 850EVO SSD 250GB

-case Corsair Obsidiane 750D airflow with 3 x 140mm fans

-mouse + keyboard

That's all. I tried to make a test on Corsair website to check how many watts i need and it says less than 500W, but you know, human beings are better in decisions ;)

Thanks guys!
 
Solution
Kenton82
Persoanlly, on this build, i would go with a 600-650w. But thats just me and i like going slightly OTT with my PSU's. Just make sure its a good quality one. maybe a Seasonic or the corsair RM***x series.
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The Paladin

The Paladin

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Oct 5, 2016
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well I plugged your parts into partpicker.com and it looks like this : https://pcpartpicker.com/list/f3tV9W

but the wattage is over 450W indeed

Wattage Breakdown

Note: Wattages are estimates only. Actual power draw may differ from listed values.
Component Estimated Wattage
Intel - Core i7-7700K 4.2GHz Quad-Core Processor 11W - 91W
Asus - STRIX Z270-E GAMING ATX LGA1151 Motherboard 17W - 70W
G.Skill - Ripjaws V Series 16GB (2 x 8GB) DDR4-3000 Memory 14W - 14W
Western Digital - BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive 4W - 20W
Samsung - 850 EVO-Series 250GB 2.5" Solid State Drive 2W - 10W
Asus - GeForce GTX 1080 Ti 11GB STRIX GAMING Video Card 62W - 250W
Total:110W - 455W

so a 650w seems a good space to breath and take your overclocking.
 
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raisonjohn

raisonjohn

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Feb 22, 2015
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650W is more than enough for your entire rig, even with OC.

The 650W is recommended, taking into account that, your rig would more or less draw around 50% of that - which is the point at which PSUs have the highest efficiency. See: http://www.guru3d.com/articles-pages/asus-rog-strix-geforce-gtx-1080-ti-review,7.html

A good quality 550W may be enough, albeit, at a lower efficiency due to higher load percentage when fully stressed.
 
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Kenton82

Kenton82

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Jan 4, 2017
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Persoanlly, on this build, i would go with a 600-650w. But thats just me and i like going slightly OTT with my PSU's. Just make sure its a good quality one. maybe a Seasonic or the corsair RM***x series.
 
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