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Psu req for sli 570

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  • Graphics Cards
  • Overclocking
  • Computer
  • SLI
  • Graphics
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Last response: in Graphics Cards
January 11, 2011 6:21:05 AM

Hello, i'm building a new computer and I'm going for sli 570 and I'm told a 850 watt is plenty enough for 2 plus overclocking.

I want others advice on this.
I found this chart on nvidia from a guy whos done testing on power
http://forums.nvidia.com/index.php?showtopic=188494

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a c 382 U Graphics card
a c 142 K Overclocking
January 11, 2011 6:56:22 AM

850 is plenty for 2 x 570s. 850 is actually enough for 2 x 480s and they use more power than the 570.
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January 11, 2011 7:19:36 AM

Im building the same rig as you. I asked a moderator in the psu section what his thoughts were and they were about the same as your link. I have a seasonic x750 and he said that would be fine. So you'll be fine with an 850, especially if its gold certified(and its seasonic lol).

Personally I'm going to look at 850s between corsair, seasonic, and pc power and cooling. I know seasonic makes corsair's PSUs but Ive read that corsair has better customer service. PC Power and Cooling is basically on the same level as Seasonic.

Oh and Im not sure if you know already or not, but you should get a modular PSU(just makes building/upgrading much easier, as you only have to plug/unplug and nothing more really). Hope this helps:) 
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a c 382 U Graphics card
a c 142 K Overclocking
January 11, 2011 7:25:42 AM

gc_sama said:
Im building the same rig as you. I asked a moderator in the psu section what his thoughts were and they were about the same as your link. I have a seasonic x750 and he said that would be fine. So you'll be fine with an 850, especially if its gold certified(and its seasonic lol).

Personally I'm going to look at 850s between corsair, seasonic, and pc power and cooling. I know seasonic makes corsair's PSUs but Ive read that corsair has better customer service. PC Power and Cooling is basically on the same level as Seasonic.

Oh and Im not sure if you know already or not, but you should get a modular PSU(just makes building/upgrading much easier, as you only have to plug/unplug and nothing more really). Hope this helps:) 



Corsair, Seasonic, PC Power and Cooling, Antec and XFX are all top tier.
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January 11, 2011 7:40:01 AM

anort3 said:
Corsair, Seasonic, PC Power and Cooling, Antec and XFX are all top tier.


My bad forgot about Antec. Ive heard a lot of people recommend the XFX 850w black edition thats silver certified, but i havent seen any 850w psu from them that are gold certified. Ive also read many consumer feedbacks on newegg saying that their XFX makes an annoying squealing sound, so i left that out.

Who do you think are the top two out of those five?
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a c 514 U Graphics card
a c 268 K Overclocking
January 11, 2011 1:31:16 PM

gc_sama said:
My bad forgot about Antec. Ive heard a lot of people recommend the XFX 850w black edition thats silver certified, but i havent seen any 850w psu from them that are gold certified. Ive also read many consumer feedbacks on newegg saying that their XFX makes an annoying squealing sound, so i left that out.

Who do you think are the top two out of those five?


I think you can safely buy any of the five.

If you read the reviews, you will always see a couple of posters who got DOA samples; that happens. A user is more likely to complain about a defective sample than praise a unit that just works. Newegg RMA is good if you happen to get a bad sample.
Perhaps customer support might be the deciding factor. I like those products where a company rep takes the time to respond to issues raised with a problem with a product.

For what it is worth, several years ago, I had a question about a PC P&C psu(before OCZ bought them), and I called the company. A real voice answered, and said let me get a tech on the line for you. The tech was knowledgeable, and answered my question. I like that kind of service, and I think PC P&C is still largely autonomous.

My most recent psu purchase is a Seasonic X-750 which has been perfect.
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January 11, 2011 9:11:18 PM

I'm getting the bronze 850 corsair because i have budget i have to keep up with.
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January 11, 2011 9:12:31 PM

Best answer selected by gougeface.
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a c 380 U Graphics card
a c 281 K Overclocking
January 11, 2011 10:31:13 PM

For comparison purposes , the list below contains performance ratings (10 scale) at jonnyguru.com / prices as per newegg on 12/31/2010 and ones w/ double asterisks (**) made it onto silentpcreview.com's Editor's Choice List meaning they excelled at both electronic and acoustic performance:


Antec SG-850 - 10.0 ($250) **
Antec CP-850 - 10.0 ($120) **
XFX 850W Black Edition 10.0 ($110)
Corsair HX850 850W - 10.0 ($170)


Antec TruePower Quattro (TPQ-850) - 9.5 ($150)
Corsair TX850 - 9.5 ($130)
Seasonic M12D 850W - 9.5 (NLA) **
NorthQ Giant Connector 850W - 9.5 (NFS)
Etasis ET850 - 9.5 (NLA)
Silverstone Zeus ST85ZF - 9.5 (NLA)

Enermax Revolution 85+ 850W - 9.0 (OOS)

Thrmaltake Toughpower XT 850W - 8.5 (NLA)
OCZ Z Series 850W - 8.5 ($165)

NorthQ Black Magic Flex 850W - 8.0 (NFS)
Coolmax CTG-850 - 8.0 (NFS)

SilverStone Decathlon DA850 - 7.5 (NLA)
Enermax Galaxy DXX 850W EGX850EWL - 7.5 (NFS)

SilverStone Strider ST85F - 7.0

Silverstone Element ST85EF 850W - 6.0


OOS - Out of Stock / NFS - Not For Sale / NLA = No Longer Available

If OC'ing w/ twin GFX cards, you'll want the ones in bold
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January 12, 2011 6:01:54 AM

Antec CP-850 looks like the clear winner going by that list above.
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a c 332 U Graphics card
a b K Overclocking
January 12, 2011 5:42:21 PM

This topic has been closed by Mousemonkey
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