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GTX580 on 520w S12II? [solved] - Page 4

post #31 of 40
Quote:
Originally Posted by reflex99 View Post
looking at it, it appears that this would be the issue.

It seems that they put the 2 PCIe connectors on one rail, and everything else on the others. The one rail has 288w available, and it appears that the 580 is drawing more than that.

Now we need to find a replacement for this
If all the Molex connectors are on the other rail then using a dual Molex to 6 pin adapter might fix the problem.

I'm pretty sure the S12II can power a 580, it just needs to be drawing from both rails.
     
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post #32 of 40
Thread Starter 
Looking at the Seasonic documentation, there is nothing to indicate what is on which rail.

We can try that though
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post #33 of 40
SeaSonic doesn't have any multi-rail units, except the S12D/M12D series. S12II are single rail, even though they claim multiple rails. They do that to claim ATX12V v2.3 adherence.
post #34 of 40
Quote:
Originally Posted by Phaedrus2129 View Post
SeaSonic doesn't have any multi-rail units, except the S12D/M12D series. S12II are single rail, even though they claim multiple rails. They do that to claim ATX12V v2.3 adherence.

Ignore everything I said lol...
     
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post #35 of 40
it was the ups, i thought you meant it was the thing that was beeping (i failed pretty hard there)

using reflex's 750W right now, i'm guessing it will probably work with my 520W too
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post #36 of 40
Quote:
Originally Posted by Yarn View Post
it was the ups, i thought you meant it was the thing that was beeping (i failed pretty hard there)

using reflex's 750W right now, i'm guessing it will probably work with my 520W too
You're are forgiven

And remember...
I know everything
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post #37 of 40
If it's not a Seasonic or any good brand name/s PSU, I will say it's not enough (more of not safe enough!) to run a GTX 580 with it.

I have a PNY GTX 465 (flashed to a 470 overclocked) with a 400w Corsair running 24/7 folding and the PSU is rock solid.

But if you have another higher PSU, then it's always worth to swap and see if it's really the PSU.
post #38 of 40
I find it funny that people say 520Watts is fine for a GTX580 but 1200Watts is recommended for SLI, IMHO 520Watts is cutting it a little bit to short, 650Watts perhaps is a safe zone.
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post #39 of 40
Quote:
Originally Posted by EarlZ View Post
I find it funny that people say 520Watts is fine for a GTX580 but 1200Watts is recommended for SLI, IMHO 520Watts is cutting it a little bit to short, 650Watts perhaps is a safe zone.
Only an idiot would say you need 1200w for two GTX 580's. 520/550w is enough for any single GPU card out there.
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post #40 of 40
Quote:
Originally Posted by EarlZ View Post
I find it funny that people say 520Watts is fine for a GTX580 but 1200Watts is recommended for SLI, IMHO 520Watts is cutting it a little bit to short, 650Watts perhaps is a safe zone.
1200W is recommended for quad SLI... 750-850W is fine for regular SLI.
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