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How much is too much?

post #1 of 29
Thread Starter 
Curious how much power would be too much for a TRI SLI 580 build or something better gpu wise that comes down the line but will use 580/590 as a current example... I think you can do it with 800W -850W comfortably my question is people with 1200W on a tri SLI build Is that just overkill? Should i get 1000W max if i ever go Tri SLI route?
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Phantom Phenom X4
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post #2 of 29
gtx 580 tri sli on 800-850 watt ??? redface.gif
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post #3 of 29
A good quality 850watt can beat a low quality 1000watt, So it matters on the quality, Thermaltake toughpower should do the job.
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post #4 of 29
Thread Starter 
Quote:
Originally Posted by AMDrocks;14243577 
A good quality 850watt can beat a low quality 1000watt, So it matters on the quality, Thermaltake toughpower should do the job.

yeah i factored that into it. I'll only buy a good one. and to the other poster maybe i undershot that estimate? But anywho what would be a good range.
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Phantom Phenom X4
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post #5 of 29
You can't tri SLI 560ti's.. Just sayin'

but yeah I'd say you could probably get away with 850w and 3 580s but you're really really really pushing it.

I mean really, if you can spend 1500+ on video cards you can probably spend ~200 [maybe even less] getting a good kilowatt or higher PSU

edit: this is only 150 and can probably do the job just fine http://www.newegg.com/Product/Product.aspx?Item=N82E16817121068

http://www.guru3d.com/article/geforce-gtx-580-3-way-sli-review/14

pulling 933w in full system stress, but seriously dude.. I can't imagine you'd ever come near that.
Edited by xPrestonn - 7/17/11 at 12:46am
    
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post #6 of 29
Yeah xPrestonn is right!
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post #7 of 29
Well I dont know about power consumption on the 580s but I have three 6950s running on a 950watt with no problems.
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post #8 of 29
The important thing to realize is the headroom you need whether you're overclocking your computer or the amount of stress you put on a power supply. You're obviously going to need some additional power when overclocking...as well as keeping your power supply at an appropriate stress level so it will last (capacitors in a power supply is limited even on a high quality one). Calculate your needs accordingly...even better if you have a wattage/voltage reader.
愛(Ai)
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愛(Ai)
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post #9 of 29
I wouldn't throw 3 580s on an 850. I have my SLI 580s on an 850 and that's about as safe as I feel comfortable doing.

It might even be the reason why I can't get 900MHz to bench stable in Vantage and Heaven with overclocks that work in 3DMark 11 and the Metro 2033 benchmark.
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post #10 of 29
Thread Starter 
Quote:
Originally Posted by xPrestonn;14243589 
You can't tri SLI 560ti's.. Just sayin'

but yeah I'd say you could probably get away with 850w and 3 580s but you're really really really pushing it.

I mean really, if you can spend 1500+ on video cards you can probably spend ~200 [maybe even less] getting a good kilowatt or higher PSU



Yeah im aware i can't tri SLI 560's. that's why i have this great community to re buy it if i ever buy 3 GPU's in the future. But Yeah it's not a right now project money wouldn't be an object if i do it though so i guess whats the best overall for the tri sli project. Just a AX1200 or anything better to shoot for.
Phantom Phenom X4
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Phantom Phenom X4
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