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This 550w enough to power a gtx 580? - Page 2

post #11 of 21
It probably will but I wouldn't overclock anything to eliminate risks of overloading the 12v rail.

If you're getting the card used and if it doesn't include some molex to PCI-E connectors you're going to have to buy at least one if you don't already have one. Remember that a GTX580 uses both an 8pin and a 6pin and that PSU only has one 8pin available.

Enjoy it when you get it.
Edited by experience333 - 3/26/12 at 7:03am
     
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post #12 of 21
Quote:
Originally Posted by tahayassen View Post

Do you have any proof? If you read the link I posted, you would see the GTX 580 draws 24.3 amps (291.6 watts) when under load by OCCT: GPU Test.

check some techpowerup reviews, specifically their average-peak 3dmark tests. they show power consumption somewhere in the vicinity of 220w in realistic scenarios (ie not furmark, occt, kombuster etc)
post #13 of 21
Quote:
Originally Posted by experience333 View Post

It probably will but I wouldn't overclock anything to eliminate risks of overloading the 12v rail.
If you're getting the card used and if it doesn't include some molex to PCI-E connectors you're going to have to buy at least one if you don't already have one. Remember that a GTX580 uses both an 8pin and a 6pin and that PSU only has one 8pin available.
Enjoy it when you get it.

Doesn't that PSU have 6-pin and 6+2-pin connectors?
Quote:
Originally Posted by Vuashke View Post

check some techpowerup reviews, specifically their average-peak 3dmark tests. they show power consumption somewhere in the vicinity of 220w in realistic scenarios (ie not furmark, occt, kombuster etc)

I suppose so.
post #14 of 21
It SHOULD be enough,if it's a QUALITY build.
I also have a CORSAIR 550W PSU running a GTX480 OC to 830 and the CPU is also OC"ed at 4800 mhz. Running for more than a year no problems wha tso ever.
Quality wise I don't know which one is better Corsair or Antec.
    
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post #15 of 21
Website is blocked here at work. But check this review and see if your PSU is actually capable of 550w under normal conditions. If so, then you should be good to go.

Bah, NM jonnys link was to forums, not an actual review.
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post #16 of 21
That Antec BP550 is a real bang for buck man!
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post #17 of 21
Easy.

A decent sandy bridge build along with a 580 wont even pull 400 Watts in real word scenarios (i.e. games), just check some of the GTX 580 reviews that show total power consumption of the entire system or take a look at the thread Cakewalk_S posted on the first page.

The whole thing in general regarding PSUs and power consumption is pretty overrated.
People think you need a 600W PSU minimum just because you run a 580 and its written on the packaging.
I'm not even remotely maxing out 850W on my current rig while I've seen many people that will tell you not to run a 590 below a 1000W PSU, its all very vague.
I'd guess under decent stress in games im just scratching the 600W mark (and even that would be stretched, its probably less).

Hell, you could run two 580's in SLI off a decent 700W PSU but that would be taking it to the edge with almost no headroom left.
But yeah, with a 960T and a 580 you probably wont see anything near 400 Watt during games so you're good to go with plenty of headroom.
Edited by toX0rz - 3/27/12 at 4:39am
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post #18 of 21
My 580 is working just fine since I got it. Running BF3 its no problem. Stock clocks on the GPU and 4.5GHz 1.29V i5-2500k. PSU sure heats up though...I guess that's normal...
post #19 of 21
unit is fine...but if you plan to OC the cpu and gtx 580 it might not handle it. you are only at ~450w on the 12v rail.
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post #20 of 21
Thread Starter 
didnt check this for a little but thanks everyone for reassuring me thumb.gif
Quote:
You should read this thread:
http://www.overclock.net/t/1126863/real-world-power-usage-user-submitted-values/110
Quote:
2500k @ 4.6 A 1.32 -- P8Z68-V Pro -- (2) 1.5 Ram -- (1) GTX 580 -- (4) 1TB 7200 HD -- Seasonic X750 @ 87% Eff

Max Values;

IDLE: 116w -> 87% = 101 Watts
Prime95: 210w -> 87% = 183 Watts
Furmark @ Stock: 304w -> 87% = 264 Watts
Prime95 and Furmark: 378w -> = 324 Watts
Folding SMP: 191w -> 87% = 166 Watts
Folding SMP and GPU: 329w -> 87% = 286 Watts
SWTOR: 366w -> 87% = 318 Watts

That's quite some low power usage I think. I'll have my 580 here tomorrow and I'll be running it on a 600w psu. I'll let you know how it goes. Obviously yours will be quite different then my setup but those results by OCN user tats really shows some good numbers to me!

but wow that is really awesome and if i do plan on overclock (which i dont until i upgrade a couple of other things) but would i see any big difference in fps if i move from a 960t to a 2500k? because i have a friend thats looking into buying my comp, and i could use the money to buy the ivy bridge i5 and a mobo and maybe ram?
    
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