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Antec 750w True Power enough for 580 SLI? - Page 2

post #11 of 30
ALot of you are saying that a 750w will power 580 SLI yet others claim that it wont even run 2 GTX470's in SLI. I'm not calling anyone out, I'm just trying to get my facts straight especially since I'm planning on sli'ing my 470.
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post #12 of 30
Quote:
Originally Posted by Sp1nalT4p View Post
ALot of you are saying that a 750w will power 580 SLI yet others claim that it wont even run 2 GTX470's in SLI. I'm not calling anyone out, I'm just trying to get my facts straight especially since I'm planning on sli'ing my 470.
650w is the minimum for two GTX 470/570's... 750w is recommended.

750w is the minimum for two GTX 480/580's... 850w is recommended.
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post #13 of 30
Quote:
Originally Posted by GameBoy View Post
650w is the minimum for two GTX 470/570's... 750w is recommended.

750w is the minimum for two GTX 480/580's... 850w is recommended.
Awesome thanks, if the 750w is the minimum for 580 sli, then I'd suggest going to 850 or higher. Especially since overclocking draws far more power.
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post #14 of 30
Any higher than 850w would be a waste for two GTX 580's, as that's counting in heavy GPU overclocks and a 4.0-4.2Ghz 130w i7. It's plenty of power.
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post #15 of 30
Thread Starter 
Thanks, I'm not going to get the second 580 right away. I just want to make sure it works.

How much more power are we talking about here by overclocking? I wanna atleast get these to the 900-950 core range.
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post #16 of 30
Thread Starter 
Quote:
Originally Posted by ocpokey View Post
It's enough but you'll be towards the high end if you do lots OCing and have lots of drives and fans, which is ok since it's a quality unit and rated to run continuously.

Remember 719W is from the wall, assuming an 84% efficiency that's only 603W to the system. So there is still some headroom to play with. I believe the 2500 non-K is the same as the K just with a locked multi right? So 95W architecture will definitely give you extra room to play with powerwise.
I have acouple fans, but I'm only using 1 HDD and 1 Dvd drive atm. I'll probably not buy a new HDD in awhile since 1.5TB is far more than enough for me. Probably not going down the SSD route either until they're much cheaper.


Quote:
Originally Posted by Phaedrus2129 View Post
I usually recommend an 850W, but a 750W probably won't have any major problems. Just be very, very careful overclocking.


... Actually, why are you even thinking about SLI 580s, you only need that for 2560x1600 or three monitor surround.
How much worse would a 570 SLI run at 1080p? I'm probably staying at this resolution for a long time.
Please don't reccomend a single card set up, I've been really thinking of SLI for quite some time.
Edited by LivingChampion - 3/11/11 at 4:41pm
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post #17 of 30
Quote:
Originally Posted by GameBoy View Post
650w is the minimum for two GTX 470/570's... 750w is recommended.

750w is the minimum for two GTX 480/580's... 850w is recommended.
This ^

Im running GTX480 SLI and OC'd i7 on Corsair750TX and with 580 taking less power you will be fine , given you don't go crazy with the OC.
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post #18 of 30
Thread Starter 
Quote:
Originally Posted by RobotDevil666 View Post
This ^

Im running GTX480 SLI and OC'd i7 on Corsair750TX and with 580 taking less power you will be fine , given you don't go crazy with the OC.
How much do you overclock your volts to though?
I'm thinking of just grabbing a single 580 soon via step up and grab another 580 in the future for some epic-ness.
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post #19 of 30
Quote:
Originally Posted by LivingChampion View Post
How much do you overclock your volts to though?
I'm thinking of just grabbing a single 580 soon via step up and grab another 580 in the future for some epic-ness.
I don't ... they are bone stock.
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post #20 of 30
Think of it this way, you spend about 1k on these 2 amazing graphics cards...Why put them and your system at risk with a PSU that might or might not handle them on full load. If I were you, I'd play it safe and purchase a 850W+ high performance PSU to ensure my system runs fine and I'll never have to worry.
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