Choosing power supply

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NothingLess

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Dec 21, 2013
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So I'm trying to build a pc and would like to overclock, and I'm not really sure about the power supply I need. I'm new, all suggestion are welcome. My current plan is :
http://pcpartpicker.com/p/2nTmM
CPU : i5-4670k
Motherboard : asus maximus vi hero
GPU : radeon r9 290 (x2 crossfire)
Memory : Corsair vengeance pro 8gb (2x4gb) DDR3 1866 Mhz
Corsair H100i + 2x Corsair SP120 HP
Samsung 840 Pro 128gb
Seagate barracuda 7200 RPM 1TB
1 Samsung optical Drive
The case is corsair vengeance c70


 
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Avoid the Corsair RM series. The 750w RM was the first Corsair unit to fail completely in testing by HardOCP.

Get a non reference 290 or get the 780. I have an EVGA ACX GTX 780 Superclocked and it lets me max every game out there at 1920 x 1080 and is completely silent. The reference 290 sounds like a plane taking off. You also only need an 850w power supply for 780 Sli.

What resolution are you gaming at? At 1920 x 1080 a single GTX 780 is fine. At a higher resolution you might want to consider a single 780 Ti. A single more powerful card is always better than multiple cards. Crossfire is better with the 290 and 290X but it's still not as good as Sli.
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Deleted member 217926

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Better look again at those video cards. They are out of stock at both Superbiiz and newegg and when they are in stock there is a limit of 1 per customer. Litecoin miners are making AMD cards impossible to find and when you can find them it's at $50-$100 over retail.

You are crazy to buy a 290 or 290X with a reference cooler as well. They are straight up junk and you will end up with a card that throttles due to heat most of the time. Non reference cooled cards are coming out right now although they will push the price up even more and don't overclock any better than reference models but they don't spend 90% of the time thermally throttled either.

And yes, you will need a quality 1000w power supply.

http://www.realhardtechx.com/index_archivos/Page362.htm
 
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NothingLess

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Dec 21, 2013
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Thanks for the advice, so I probably need 1000w PSU. Do you think corsair RM1000 will be okay ?
So do you think I should get the non reference card of radeon or gtx 780 would be better ? Cause they're not much different right
 
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Deleted member 217926

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Avoid the Corsair RM series. The 750w RM was the first Corsair unit to fail completely in testing by HardOCP.

Get a non reference 290 or get the 780. I have an EVGA ACX GTX 780 Superclocked and it lets me max every game out there at 1920 x 1080 and is completely silent. The reference 290 sounds like a plane taking off. You also only need an 850w power supply for 780 Sli.

What resolution are you gaming at? At 1920 x 1080 a single GTX 780 is fine. At a higher resolution you might want to consider a single 780 Ti. A single more powerful card is always better than multiple cards. Crossfire is better with the 290 and 290X but it's still not as good as Sli.
 
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Solution
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Deleted member 217926

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The best deal I see on a 1000w power supply is the Coolermaster V 1000. Normally Coolermaster power supplies are to be avoided but the V series is made by Seasonic and this is a rebadged Seasonic X series. One of the best on the market. At $169 it's a steal. The Seasonic branded unit is $100 more.
 
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juanjostorreshernndez

juanjostorreshernndez

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Sep 15, 2012
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I prefer single card solution, only if you are looking at triple monitor gaming, or a 4k monitor, might sli/cf will be needed.
Even that is now changing with triple monitor support on top end cards and stronger single card solutions.

1-Dual gpu support is dependent on the driver. Not all games can benefit from dual cards.
2-Dual cards up front reduces your option to get another card for an upgrade.It will often be the case that replacing your current card with a newer gen card will offer a better upgrade path.
3-Dual gpu's do not always render their half of the display in sync, causing microstuttering. It is an annoying effect.
4-The benefit of higher benchmark fps can be offset, particularly with lower tier cards.
5-Case cooling becomes more of an issue with dual cards. also the noise is higher.
6-Your psu costs are more expensive too.

So, with a single GTX780 you will cover all your needs.
GeForce GTX 780 - requires 42A and a 600W PSU minimum, I think good branded 550W will do the job as well.
So with any good branded certified 600W~700W PSU(Seasonic,XFX, Antec, Corsair(TX,HX,AX series) you will be just fine
 
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NothingLess

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Dec 21, 2013
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Okay thanks again, I probably will go with EVGA 780 Ti with ACX Cooler. Just to be sure, for this I would only need around 620 right ?
So Corsair HX650 or Seasonix X650 would be a good choice right?
 
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