PSU for GTX580 SC sli

[Mirage56]

So i'm planning to get a new build, starting off with a single EVGA GTX 580 SC, but will probably sli it down the road. So i was just wondering what the PSU is that i would need. And this has probably been asked a million times, but i cant seem to find the right answer xD and it probably is on a build by build basis

i5 2500k
Asus P8Z68-V Pro
HAF X case
Noctua NH d14
G.skill ripjaws 1600 8gb
1TB WD Caviar Black
128gb Crucial M4


At the moment, i am thinking Corsair Professional HX850W or the CM Silent pro 1000W
And i'd prefer not going over the 200$ mark if possible.

Thanks in advance

 

[henydiah]

Hx850 is very good , but you need more wattage. If the HX850 vs CM silent 1000W is same price, I think get CM Silent Pro 1000W is very worth.

 

[obsidian86]

850 is enough these are curremtly good deals

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207011

http://www.newegg.com/Product/Product.aspx?Item=N82E16817194093

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151100

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139022

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371053

http://www.newegg.com/Product/Product.aspx?Item=N82E16817256058

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207017

http://www.newegg.com/Product/Product.aspx?Item=N82E16817341044

or a bit more watts

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371050

http://www.newegg.com/Product/Product.aspx?Item=N82E16817194083

or a whole lot more

http://www.newegg.com/Product/Product.aspx?Item=N82E16817256051

http://www.newegg.com/Product/Product.aspx?Item=N82E16817182239

http://www.newegg.com/Product/Product.aspx?Item=N82E16817341045

 

[beenthere]

As far as PSUs are concerned, be informed. Before you buy any PSU read accurate, objective PSU reviews at reputable sites such as www.jonnyguru.com or www.hardwaresecrets.com on the EXACT model PSU that you are interested in as some brands have good and poor quality PSUs.

You can also get an accurate rating of how much PSU power is required for your current or future system at the PSU calculator link below. Once you know the total PSU watts required then you need to confirm that the 12v rail has enough amps. to support your Vid card(s) and the rest of the PC system.

There are several websites that show the Vid card power consumption in watts. Divide the watts by 12 to determine the amps. required on the 12v rail(s). Add 15 amps for the rest of the PC on the 12v rail and you now know the Minimum total 12v rail amps required under full load. It's best to have at least 5-10 amps. reserve on the 12v rail available under full load so the PSU is not loaded to 100%.
It's also worth noting that people often misunderstand the 80% power rating. This is a rating of the PSU's energy efficiency not it's output. 80% plus PSUs use less grid power to produce the same PC power. If it's 80% Bronze, Silver or Gold the cost savings on electricity is pretty small between Bronze, Silver and Gold unless you are paying very high rates for electricity so any 80% rated quality PSU is fine even if not Gold. For those who leave their PC on 24/7 a quality 80% PSU is a good investment.


http://extreme.outervision.com/psucalculatorlite.jsp

http://www.guru3d.com/article/geforce-gtx-560-ti-sli-review/14

http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_560_Ti/25.html

IT'S BETTER TO TEACH A PERSON HOW TO FISH THAN TO GIVE THEM A FISH FOR DINNER!

 

[geekapproved]

You need a 1000w psu if your planning on overclocking ANYTHING.

http://www.guru3d.com/article/geforce-gtx-580-review/7

Look down under the bar graph where it says "GTX580 in SLI".