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CF 6970 on 620w Seasonic? - Page 5

post #41 of 48
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Quote:
Originally Posted by Phaedrus2129 View Post
An S12II 620W is MORE than ample for a pair of HD6970s. 750W for piece of mind is just spending money you could spend elsewhere for greater benefit.
I know I could power it with the 620, but it's not like I'm going for a 1000w or anything crazy like that. Its just that at load its kind of reaching its limit, and I don't want my PC shutting off during gaming sessions.

Plus its not that much more, only $60, and its 80 plus silver which makes the deal for me.
 
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post #42 of 48
Quote:
Originally Posted by Phaedrus2129 View Post
An S12II 620W is MORE than ample for a pair of HD6970s. 750W for piece of mind is just spending money you could spend elsewhere for greater benefit.
That depends on what else is in the system with it though, overclocking etc. I would blow that 620w up if i put it in my system considering i draw 850w at the wall now.
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post #43 of 48
Quote:
Originally Posted by Phaedrus2129 View Post
An S12II 620W is MORE than ample for a pair of HD6970s. 750W for piece of mind is just spending money you could spend elsewhere for greater benefit.
You should listen to this guy.
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post #44 of 48
Thread Starter 
Quote:
Originally Posted by Blindsay View Post
That depends on what else is in the system with it though, overclocking etc. I would blow that 620w up if i put it in my system considering i draw 850w at the wall now.
I wonder if you'd manage to beat the OCP?
 
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post #45 of 48
Quote:
Originally Posted by Blindsay View Post
That depends on what else is in the system with it though, overclocking etc. I would blow that 620w up if i put it in my system considering i draw 850w at the wall now.
Well, that's only around 700 W when compensating for efficiency and you're using WC, a more power hungry CPU and a 4 HDD RAID array.
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post #46 of 48
Quote:
Originally Posted by B!0HaZard View Post
As has been said, that SeaSonic 620 W would power that rig.
OC it, let it age a year and that 620W PSU will not be able to keep up.
post #47 of 48
Quote:
Originally Posted by Xenthos View Post
OC it, let it age a year and that 620W PSU will not be able to keep up.
Capacitor degradation is virtually non-existent IIRC if that's what you're referring to and I'm very sure that a SeaSonic can do considerably more than it's rated for and that it'd still do it's full 620W after years of use.

Also, a single HD 6970 draws 200 W and 2 would probably draw ~350 W. Overclocked, you might get a draw of 400 W. Then an OC'd i5 and you're pulling 150 W extra. Then add, what, 50 W for mobo, HDD's and fans? 400 + 150 + 50 = 600 W. And that's an absolute maximum draw which your system would rarely see. I still consider it very much possible.

Sources:
http://www.tweaktown.com/articles/37...e/index16.html
http://www.hardware.fr/articles/817-3/resultats.html
http://www.legitreviews.com/article/1488/18/
http://www.hexus.net/content/item.php?item=28056&page=9
Edited by B!0HaZard - 6/18/11 at 8:10am
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post #48 of 48
Quote:
Originally Posted by Xenthos View Post
OC it, let it age a year and that 620W PSU will not be able to keep up.
Cap aging & longevity is a non issue unless the unit in question is using crappy CapXon or Fuhjyyu caps. Even stuff like Teapo/SamXon/OST are good enough, and Japanese caps are obviously even better.

Quote:
Originally Posted by Blindsay View Post
That depends on what else is in the system with it though, overclocking etc. I would blow that 620w up if i put it in my system considering i draw 850w at the wall now.
Quote:
Originally Posted by Polymerabbit View Post
I know I could power it with the 620, but it's not like I'm going for a 1000w or anything crazy like that. Its just that at load its kind of reaching its limit, and I don't want my PC shutting off during gaming sessions.

Plus its not that much more, only $60, and its 80 plus silver which makes the deal for me.
... The only way you would come close to maxing out the 620w is if you were to run Prime95/Furmark simultaneously 24/7, and no one does that.
Edited by GameBoy - 6/18/11 at 10:21am
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