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EVGA GTX 480 SC's... Which PSU to buy?

post #1 of 18
Thread Starter 
Hey guys, I currently have 1 of the 480's and plan on getting 2 more here next month. My current PSU won't support them and has been kinda flakey with my current setup so I'm replacing it. What do I need to look for when getting one to run them? What is a good psu to support 3 of the cards highly of's plus my Sig rig? Any and all help is appreciated. My budget is not a real issue as I have about $1800 for the whole upgrade.

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Nathan
post #2 of 18
I'm running tri sli 480s on an antec hcp 1200. Overkill but it's solid and doesnt get super hot like my old 1000watt psu
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post #3 of 18
Thread Starter 
What are your 480's oc'd to? What is the minimum cottage needed and minimum amps needed? How do you have them connected? 1 card per rail or 2 rails per card?

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Nathan
post #4 of 18
I'd go with a Corsair AX1200 or Antec HCP-1200.

Both are practically the same performance-wise, with about the same cost.

The main difference would be that the AX1200 is single-rail and the HCP-1200 I believe has 8.
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post #5 of 18
Thread Starter 
I have the AX1200 in my shopping cart at newegg but I'm worried about the single rail. Does it have way more than enough amps to cover 3 cards plus my Sig rig and still enough room to expand later? I think each card needs 39 amps (stock) and the AX1200 has something like 120 amps. 3 cards would be 117 amps going by that but I have no intention of keeping them stock. Plus I need the extra power to cover the rest of my rig and maybe to go to water cooling later if I choose to. I might even add a 560 later for a folding/physx card.

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Nathan
post #6 of 18
Quote:
Originally Posted by lawrencendlw View Post
I have the AX1200 in my shopping cart at newegg but I'm worried about the single rail. Does it have way more than enough amps to cover 3 cards plus my Sig rig and still enough room to expand later? I think each card needs 39 amps (stock) and the AX1200 has something like 120 amps. 3 cards would be 117 amps going by that but I have no intention of keeping them stock. Plus I need the extra power to cover the rest of my rig and maybe to go to water cooling later if I choose to. I might even add a 560 later for a folding/physx card.

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Nathan
The Corsair 1200 is a very nice PSU. I would grab that over the Antec, the Corsair had a slightly higher review from Johnny Guru while it is around $20 cheaper on newegg.
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post #7 of 18
Thread Starter 
I'm thinking that I'm just going to buy 2 eVGA GTX 570 SC's as it'll cost the same and I can upgrade them to 580's within 3 months (which I most likely will) and just sell my 480 here on OCN. plus I get a free copy of 3DMark Vantage 2011 if I get a 500 series card from eVGA lol. So I guess the AX1200 it is. Thanks for the help guys. I really appreciate it. All I need to do now is figure out where to get some nice sleeping since doing these sleeves will be easy as they're fully modular. I might also look into buying a second set of cables so I can just sleeve the second set and leave the stock ones ....stock.

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Nathan
post #8 of 18
I have the AX1200, and its perfectly fine with a single rail. There is no worries there.
I also have an enermax 1250 with 6 rails in it, and its actually more of a pain as you need to balance the rails out when actually pushing the system.

Single rail is fine, and its much easier to use.
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post #9 of 18
Quote:
Originally Posted by lawrencendlw View Post
Hey guys, I currently have 1 of the 480's and plan on getting 2 more here next month. My current PSU won't support them and has been kinda flakey with my current setup so I'm replacing it. What do I need to look for when getting one to run them? What is a good psu to support 3 of the cards highly of's plus my Sig rig? Any and all help is appreciated. My budget is not a real issue as I have about $1800 for the whole upgrade.

Sent from my HTC EVO 4G using Tapatalk!
Nathan
For running 3x gtx480 get any one these psu:
1> corsair ax1200 (the best option)
2> corsair hx1000
3> antec high current pro 1200
avoid anything below 1000watt if u plan to OC your 3x gtx480
Hope u like my suggestion
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post #10 of 18
I just rage quit with my power supply, i had silverstone strider 1000W that wasnt enough, so i just went and got a silverstone strider 1500W.

like umm 5 12V+ rails and they are all rated to like 25amps.

My system peaks at 1530W from the wall for the desktop only (not the monitors).

I later plan to make that quad 480's and throw them underwater


Edited by Jump3r - 4/24/11 at 2:43am
 
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