need help! (PSU)

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STDinosaur

Reputable
Jul 6, 2014
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4,510
Hello guys,

I need help, I can't choose between these:

EVGA SuperNOVA 850 G2 850W ATX 2.3, 80+ Gold

Super Flower Leadex 80Plus Gold Netzteil - 750 Watt

and Corsair Enthusiast Series RM750, Modular, 80 Plus Gold 750 Watt

I want a silent one and crossfire in the future, but I don't really know which one fits this, please help me :(

my system (only most important parts):

Phantom 530 Case

i7 4790k

gigabyte z97x-ud3h

 
Solution
Taafe


It's not as well built and efficient as the two other cards, it'll do you fine it's just not advised
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ko888

ko888

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Feb 18, 2009
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You left out the most important component in power estimation, the GPU. What is the model of the graphics cards that you are planning to run in CrossFire?
 
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ko888

ko888

Titan
Feb 18, 2009
16,708
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84,990
Is there any overclocking of the two Radeon R9 290 planned? Overclocking these cards may increase its maximum power draw significantly.

I've seen a review where the maximum power consumption of only the two AMD Reference Design Radeon R9 290 graphics cards in 2-way CrossFire was measured. It was 660.7 Watts DC. The system power consumption including both Radeon R9 290 graphics cards was measured at 831 Watts DC.

For a system using two AMD Reference Design Radeon R9 290 graphics cards in 2-way CrossFireX mode AMD specifies a minimum of a 1000 Watt or greater system power supply.

Don't assume that all Radeon R9 290 cards use the same amount of power. Some of the non-reference design factory overclocked models will draw more power.
 
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Taafe

Taafe

Honorable
Dec 26, 2013
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10,810


Would the warranty of that size really matter? I mean in 5 years time you'd be great for an upgrade anyway
 
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Dark Lord of Tech

Dark Lord of Tech

Retired Moderator
Aug 18, 2009
128,614
1,778
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Best 850w ON THE MARKET MADE BY THE SUPERFLOWER

EVGA SuperNOVA 850 G2 850W ATX 2.3, 80+ Gold
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story6&reid=377
Review.

Performance (40% of the final score) - we're down to scoring time again. And, as with all other recent units from EVGA and Super Flower, this one will be a breeze to score. Pass for Gold, both cold and hot, means no points removed from a perfect score. Amazing ripple suppression the likes of which has only been seen a handful of times on this site means no points removed there. And finally, yes, this unit did manage to hold onto an average of 1.2% regulation in the hot box so no points come off there, either. This guy's getting a 10.

Functionality (20% of the final score) - full modularity. Lots of cables. Good cable lengths. Plenty of connectors. Switchable semi-fanless mode. Lots of goodies in the box. Nice size 16 gauge line cord. I really can't think of anything to complain about here, either. 10.

Value (20% of the final score) - $144.99 is the asking price of these at Newegg right about now. It shares this price with the Silverstone ST85F-GS. Now, about the only thing that unit has on this one is its much shallower depth. Other competition? What other competition? Coolmax? More money, if you can believe that. Corsair HX850? More money. Corsair RM850? More money. Themaltake Toughpower Grand? More money. Seasonic X-850 KM3? Way more money. EVGA has this category locked right down. 10.

Build Quality (20% of the final score) - I'm going to remove a point for the fan control wiring and be done with it on this one. Soldering is good enough to pass with no deductions, the AC line filter is pretty much all there in the end, the component selections are fantastic, and the capacitors are wall to wall Japanese. 9.5.
 
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STDinosaur

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Jul 6, 2014
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4,510
hm I see the evga pieces are out of stock, damn and that super flower leadex thing ... Hold-up time unfortunately didn't reach 16 ms, so the unit failed this test.
can you guys suggest a good psu for the price range of 100-120€? but needs to be available on hardwareversand
 
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STDinosaur

Reputable
Jul 6, 2014
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4,510
forgot to mention cause I already preordered a system over there that's why it has to be hardwareversand, everything is rdy besides the psu

why you recommend the 750 version? is it that much better?
 
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