is this a decent psu? - Overclock.net

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post #1 of 29 Old 05-02-2011, 09:19 AM - Thread Starter
 
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just wondering if this is decent enough to run a 2500k oc'd with 2 560's?
http://www.pccasegear.com/index.php?...ducts_id=12907

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post #2 of 29 Old 05-02-2011, 09:21 AM
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Yes, it's a very good PSU and should run that without an issue.

As always, best to get a few more opinions.

I can't remember how much power the 560 uses exactly. But you can't really get much higher quality than SeaSonic.

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post #3 of 29 Old 05-02-2011, 09:24 AM - Thread Starter
 
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Quote:
Originally Posted by Plex View Post
Yes, it's a very good PSU and should run that without an issue.
ok would it be good enough to run some sli kelper gpu's when they come out cause i'm thinkin of gettin 2 of those latter down the track

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post #4 of 29 Old 05-02-2011, 09:27 AM
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Quote:
Originally Posted by IXcrispyXI View Post
ok would it be good enough to run some sli kelper gpu's when they come out cause i'm thinkin of gettin 2 of those latter down the track
We have no idea what kind of power consumption the Keplers will have. No one can realistically answer that for you.

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post #5 of 29 Old 05-02-2011, 09:29 AM
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http://www.jonnyguru.com/modules.php...Story&reid=169

The most in depth PSU review you'll ever need. If jonnyguru signs off on it (which he does), you can trust your life to it...

Anyway 650w should be plenty for a single GPU, SLI it depends on the cards.

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post #6 of 29 Old 05-02-2011, 09:33 AM
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Quote:
Originally Posted by Traches View Post
http://www.jonnyguru.com/modules.php...Story&reid=169

The most in depth PSU review you'll ever need. If jonnyguru signs off on it (which he does), you can trust your life to it...

Anyway 650w should be plenty for a single GPU, SLI it depends on the cards.
i would look towards 850 for sli.

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post #7 of 29 Old 05-02-2011, 09:34 AM
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I'd step up to the 750W for SLI, but the 650W can cut it.

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post #8 of 29 Old 05-02-2011, 09:36 AM
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Yeah, it's very good.

I would get this XFX 750W Black Edition though. Same insides, I belive. Cheaper.


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post #9 of 29 Old 05-02-2011, 09:39 AM
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Quote:
Originally Posted by Killam0n View Post
i would look towards 850 for sli.
850W is completely overkill.

The CPU = 95W
1x GPU = 170W
Remaining components = 100W

= 535W
Even room for overclock .. It is a good PSU so 650W would be sufficient.


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post #10 of 29 Old 05-02-2011, 09:49 AM
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The X-650 is the best 650W power supply on the market.

Anyway, even a high quality 550W power supply would be enough to power a system with two GTX 560s in it.

Guru3D.com was able to pull 449W from the wall outlet using Furmark (source). So if we assume 85% efficiency during this power draw, then that would mean that the system was pulling about 381W from the power supply during that power draw.

Therefore, if we add about 150W for the rest of the system (that is, for those times when the entire system is under full load, such as folding on both the CPU and the graphics cards at the same time), we get approximately 530W. However, that's an absolute maximum, not an average power draw. I mean, you'd have to put some real effort forth in order to pull 530W from a power supply with such a setup.

Any high quality 550W power supply is going to have a "continuous" 550W rating, not a "peak" rating. So even if you were to pull ~530W from the PSU for an extended period of time, then that would still be 20W less than the 550W of continuous power the PSU is rated for.

In other words, the SeaSonic X-650 is overkill. It's even overkill on quality.

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