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Which power supply for GTX 480's in 3-way SLI? - Page 3

post #21 of 44
Thread Starter 
Quote:
Originally Posted by juano View Post

1000w should be plenty for all but the absolute max overvoltage on your cards, but check here to be sure (and FYI the PSU section is usually a better place for PSU questions). I would go with this one which is better than just about every other option in your price range, here's a review to check out for that PSU. The Antec 1200 you were thinking of was likely the HCP-1200 and not the TPQ-1200, the HCP is better and gets used more often in builds around here.

The PSU you linked only has 5 PCIe Cables frown.gif I need at least 6 for my 3-way SLI setup.
post #22 of 44
I got a Cooler Master Silent pro 1200w for $150 (bnib) off ebay. Its not the best and its not fully modular, but I don't intend to benchmark my 480s (I had plenty fun with three 580 3gbs biggrin.gif ) or go for suicide runs but I do know these guys suck a lot of power. I know guru3d.com pulled +1000w watts at system load with a mild cpu overclock and stock 480 clocks. A solid 1200w psu should be plenty enough.
post #23 of 44
Quote:
Originally Posted by Jessekin32 View Post

That did actually... Do you think this is an adequate PSU?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817159123
It's 1200 watts, and within my price range smile.gif If this is good enough, do you think I'd be able to OC my GPU's with it?

He did pull over 1000W but you have to take his case into account.

He had the cards flashed with a bios that allows him to go higher than the regular max voltage for the cards. He also had the 6 core 980x heavily overclocked which pulls a lot of power as well. Considering these extremes, he pulled just over 1000W.

Another thing to keep in mind is that they were water cooled. That helps a lot. The problem with the GTX480 is that when they run hot, they draw more current. They have a problem with something called leakage current. The GTX 580 basically fixed that. So if you are running these cards without water cooling you are looking at about 40W more per card (At high overclocks and 90+C).

Now with that out of the way. He was running Furmark which is known to draw a stupid amount of more power from a card. When gaming, you will pull much less.

Now if for some reason you want to start heavily overclocking and benching and want to get a 1200W to keep it safe rolleyes.gif I would not get the PSU you listed. When you start getting into high wattage power supplies and many video cards, you want to get a PSU from a company that will cover you if something goes wrong. My recommendations are: Antec, Corsair, and Seasonic.

If you want more information about a power supply, go to Johnny Guru and try to find it. He has very good reviews.

If you have more questions, ask. I would recommend a corsair or seasonic 1050W power supply. But if you want more, than look towards the companies listed.
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post #24 of 44
Quote:
Originally Posted by Jessekin32 View Post

The PSU you linked only has 5 PCIe Cables frown.gif I need at least 6 for my 3-way SLI setup.

No it has 6 6+2 pin PCIe connections, I have that PSU and it's been confirmed by many different sources including Kingwin themselves.
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post #25 of 44
Thread Starter 
Quote:
Originally Posted by AMC View Post

He did pull over 1000W but you have to take his case into account.
He had the cards flashed with a bios that allows him to go higher than the regular max voltage for the cards. He also had the 6 core 980x heavily overclocked which pulls a lot of power as well. Considering these extremes, he pulled just over 1000W.
Another thing to keep in mind is that they were water cooled. That helps a lot. The problem with the GTX480 is that when they run hot, they draw more current. They have a problem with something called leakage current. The GTX 580 basically fixed that. So if you are running these cards without water cooling you are looking at about 40W more per card (At high overclocks and 90+C).
Now with that out of the way. He was running Furmark which is known to draw a stupid amount of more power from a card. When gaming, you will pull much less.
Now if for some reason you want to start heavily overclocking and benching and want to get a 1200W to keep it safe rolleyes.gif I would not get the PSU you listed. When you start getting into high wattage power supplies and many video cards, you want to get a PSU from a company that will cover you if something goes wrong. My recommendations are: Antec, Corsair, and Seasonic.
If you want more information about a power supply, go to Johnny Guru and try to find it. He has very good reviews.
If you have more questions, ask. I would recommend a corsair or seasonic 1050W power supply. But if you want more, than look towards the companies listed.

So what would your opinion be on this Antec 1200w PSU then?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371032

With promocodes and rebates, it puts me RIGHT at my targeted $180 mark smile.gif
post #26 of 44
http://www.guru3d.com/article/geforce-gtx-480-3way-sli-review/25

In the review they have STOCK 480's pulling just over 1000w AT THE WALL. So in reality it'd be around 850 - 900w of actual power being consumed. I say you could power your system off a 1KW unit if you don't plan on heavily OC'ing. To be safe, you should go with a 1050W/1200W unit. < - either option there gives you a good amount of breathing room, especially if you WC the 480's (lower power consumption due to no fans).


EDIT:

Quote:
Originally Posted by Jessekin32 View Post

So what would your opinion be on this Antec 1200w PSU then?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371032
With promocodes and rebates, it puts me RIGHT at my targeted $180 mark smile.gif


The Antec TPQ is a good quality unit. I was going to buy it from someone on here on OCN after doing research on it, but he ended up selling it before I had the funds.
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post #27 of 44
Quote:
Originally Posted by Jessekin32 View Post

So what would your opinion be on this Antec 1200w PSU then?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371032
With promocodes and rebates, it puts me RIGHT at my targeted $180 mark smile.gif

Look up the review thumb.gif

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=177

Solid performer when you use the cables as intended. They are not pleasing but they get the job done. You want excellent ripple suppression which this has with the cables connectors.

So performance wise, it is excellent.
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post #28 of 44
Thread Starter 
Quote:
Originally Posted by iinversion View Post

http://www.guru3d.com/article/geforce-gtx-480-3way-sli-review/25
In the review they have STOCK 480's pulling just over 1000w AT THE WALL. So in reality it'd be around 850 - 900w of actual power being consumed. I say you could power your system off a 1KW unit if you don't plan on heavily OC'ing. To be safe, you should go with a 1050W/1200W unit. < - either option there gives you a good amount of breathing room, especially if you WC the 480's (lower power consumption due to no fans).
EDIT:
The Antec TPQ is a good quality unit. I was going to buy it from someone on here on OCN after doing research on it, but he ended up selling it before I had the funds.

It's settled then. I think I'm going to go make my purchase right now! biggrin.gif
post #29 of 44
Quote:
Originally Posted by Jessekin32 View Post


So what would your opinion be on this Antec 1200w PSU then?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371032

With promocodes and rebates, it puts me RIGHT at my targeted $180 mark smile.gif
The power supply is pretty good psu, and antec is a good company, had used their customer service once in the past, very professional and shipped out what i need the next day, got it overnight. Although the unit is a bit old, its still fine. Just be careful the unit does have capacitors on its cables so it night not be able to fit though all case "holes".
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post #30 of 44
Thread Starter 
Quote:
Originally Posted by AMC View Post

Look up the review thumb.gif
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=177
Solid performer when you use the cables as intended. They are not pleasing but they get the job done. You want excellent ripple suppression which this has with the cables connectors.
So performance wise, it is excellent.

Thank you! That settle's it then. I'm getting it biggrin.gif

If I end up HATING the cables, I just find some custom ones of PerformancePC or something. I'm sure I can find them. That, or mod them myself,

Thanks guys! I think I found my choice! biggrin.gif
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