Tips on PSU Wattage w/ first build

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Underpowered1106

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Jun 11, 2014
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Hi guys!

i will using the following parts

this is for gaming on games such as battlefield 4 (anything gpu intensive)

Intel Core i7-4790K
Corsair H100i 77.0 CFM Liquid CPU Cooler
Asus MAXIMUS VI HERO ATX LGA1150 Motherboard
Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory
Samsung 840 EVO 120GB 2.5" Solid State Drive
Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive
GeForce GTX 780 Ti 3GB Superclocked ACX Video Card in the future i might add a second 780 ti or the newest nvidia gpu on the market

One 140mm fan and three 120mm fans inside the case. i will oc but it going to be small
my system needs 650 Watts or 750 Watts of power to run at its best efficiency?
The minimum wattage provided by most calculators go from 480 to 550 watts and according to nvidia: Recommended PSU Wattage (W) GTX 780 Ti = 620

This is serious question so please not troll as getting the wrong PSU could lead to really bad incidents

Sorry for my bad english :p
 
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i7Baby

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Jul 25, 2012
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Running the psu at 50% load is its best efficiency.

But you need it to cope with max loads. That's what power calculators do - http://extreme.outervision.com/psucalculatorlite.jsp

To run a pc with a 780ti you need at least 600W eg per realhardtech. Of that, usually 300W is allowed for everything but the card.

Also, we try to find good quality power supplies eg made by Seasonic. Tom's has a databse or Tier system for power supplies - http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html
For a 780ti I'd recommend something from Tier One - to help protect your investment.
 
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Underpowered1106

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Jun 11, 2014
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I was planning of getting this one

http://ca.pcpartpicker.com/part/evga-power-supply-220g20750xr
 
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Underpowered1106

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Jun 11, 2014
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It's in Tier One... EVGA Supernova G2

I've looked at reviews, yes... and most people that I've spoken to have told me that its a really good PSU...

 
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Underpowered1106

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Jun 11, 2014
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Also overclock.net: The conclusion

overall winner here is the EVGA SuperNova G2






techpowerup: Now the overall winners here is the EVGA SuperNova G2

 
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Underpowered1106

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Jun 11, 2014
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Thank you.

The price is not a problem and after all what i've been told and all what i read, the SuperNova G2 seems like a good idea too! :ouch:


EVGA 220-G2-0750-XR doesn't say SuperNova series on PCPartPicker, though... :( Is it?
 
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