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post #11 of 22
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post #12 of 22
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371050

This should do very nicely if you can spare $16 more than your budget ($10 more + $6 shipping)

And lol, what were you thinking? 750W?
Edited by shinigamibob - 11/14/11 at 5:55pm
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post #13 of 22
Quote:
Originally Posted by shinigamibob View Post

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371050
This should do very nicely if you can spare $16 more than your budget ($10 more + $6 shipping)
And lol, what were you thinking? 750W?
Have you checked Phadreus's PSU wattage calculator? 750W is plenty for 570's in SLI
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post #14 of 22
Quote:
Originally Posted by killeraxemannic View Post

Have you checked Phadreus's PSU wattage calculator? 750W is plenty for 570's in SLI

You sure? Even when that CPU is overclocked that much? It might be just enough, but I don't think it'll allow for a whole lot of headroom. Of course, I could just be oh so very wrong about all this - imma go hit up that PSU calculator and see for myself.

In fact, thats the limiting factor for me too - I only have a 750W, but I want to get 2 570's.
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post #15 of 22
Thread Starter 
Quote:
Originally Posted by shinigamibob View Post

You sure? Even when that CPU is overclocked that much? It might be just enough, but I don't think it'll allow for a whole lot of headroom. Of course, I could just be oh so very wrong about all this - imma go hit up that PSU calculator and see for myself.
In fact, thats the limiting factor for me too - I only have a 750W, but I want to get 2 570's.

This 960 will be at 4.2GHz and my 570's will be at 900/2200.
     
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post #16 of 22
Quote:
Originally Posted by shinigamibob View Post

You sure? Even when that CPU is overclocked that much? It might be just enough, but I don't think it'll allow for a whole lot of headroom. Of course, I could just be oh so very wrong about all this - imma go hit up that PSU calculator and see for myself.
In fact, thats the limiting factor for me too - I only have a 750W, but I want to get 2 570's.

Yes I am sure.... Look at my sig rig. I am running 2 570's in SLI and a 2500k @ 4.5ghz on a 750W psu

No issues at all
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post #17 of 22
Quote:
Originally Posted by killeraxemannic View Post

Yes I am sure.... Look at my sig rig. I am running 2 570's in SLI and a 2500k @ 4.5ghz on a 750W psu
No issues at all

So I ran through Phadreus's calculator, and it recommends 780W on stock CPU and 830 for OC'd. However, if you have a high-end PSU (like your Seasonic), it should be able to handle the load since 780 is with a fair amount of overhead.. That said, I still don't feel completely comfortable running 2 570's and an Oc'd CPU on a 750W PSU, although for OP's purposes, it might suffice.

Final choice is really up to OP - 750W or 800+. Price really is the deciding factor here.

EDIT: Just for kicks, I bumped up the video cards from 2x GTX 570's to 2x GTX 580's and the power requirement still stayed the same. Curious
Edited by shinigamibob - 11/14/11 at 6:24pm
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post #18 of 22
Yup I used the PSUCalc and it said 840W if the GPUs are overclocked and overvolted. Remember that Bloomfield i7's use WAY more power than Sandy Bridge i5's when overclocked.
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post #19 of 22
Quote:
Originally Posted by shinigamibob View Post

So I ran through Phadreus's calculator, and it recommends 780W on stock CPU and 830 for OC'd. However, if you have a high-end PSU (like your Seasonic), it should be able to handle the load since 780 is with a fair amount of overhead.. That said, I still don't feel completely comfortable running 2 570's and an Oc'd CPU on a 750W PSU, although for OP's purposes, it might suffice.
Final choice is really up to OP - 750W or 800+. Price really is the deciding factor here.

Did you download the tool? Look at the recommended PSU's. When I ran through it just now I got the same wattage as you did but most of the recommended PSU's on the list from the tool were 750W. This question has been asked many times on the forums and the general consensus is that 750W is perfect for 570's in SLI. The OP obviously has a budget and for him to get more PSU than he actually needs would be a waste of money.
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post #20 of 22
Quote:
Originally Posted by killeraxemannic View Post

Did you download the tool? Look at the recommended PSU's. When I ran through it just now I got the same wattage as you did but most of the recommended PSU's on the list from the tool were 750W. This question has been asked many times on the forums and the general consensus is that 750W is perfect for 570's in SLI. The OP obviously has a budget and for him to get more PSU than he actually needs would be a waste of money.

I did download the tool. And guitar_man has a point - Bloomfields do use a lot more power than Sandy Bridge. I also did factor in the overclocking of both GPU's and CPU and I still end up with 840W as recommended.

But you do have a point - a fair number of the recommendations are for 750W PSU's. In the help menu of PSUCalc, it does say that the wattage displayed accounts for OC'ing, headroom and degradation and is pretty much guaranteed to be safe. I stand corrected smile.gif
Edited by shinigamibob - 11/14/11 at 6:34pm
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