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Triple Sli GTX 580 3gb power supply recommendation.

Poll Results: Triple SLI GTX 580 3gb 1000w (keep) or 1200w (upgrade).

 
  • 28% (13)
    Keep the 1000w psu.
  • 71% (33)
    Upgrade to a 1200w psu.
46 Total Votes  
post #1 of 61
Thread Starter 
Hi guys,

I'm exploring new gpu upgrade options and I can't come to a good answer for powering three gtx 580s 3gb that will see oc. I'm unsure if my current psu will handle them or to upgrade to a 1.2kw. I have yet to finalize my gpu setup but if I need a new psu, I want to know and order it at the same time.

I know that my current psu will handle three 570s quite nicely, but the 580s maybe an option. I was able to run three 6950/70s with a medium oc.

Also, anyone know what the conversion method/equation is to convert the total system consumption displayed on the Kill-A-Watt to its efficiency (is that even the correct termonology:confused) or actual power draw @ the psu?

Please note that I will not tolerate questioning my gpu intentions. I want concrete info on the question at hand not about building or not building an "overkill" rig.

Thanks and +rep for constructive input.

-wermad
post #2 of 61
more than likely your 1000w psu will be able to run it, most people always give you the oh it will run on an 850 or so but i always go for more, i opted for a 1200 watt for my 2 580's at 900mhz and my i7 920 at 4.2 with a 9800gtx for physx.

in my opinion its always better to have way more room than just just enough power to run what you have

for certified products look at

http://www.slizone.com/object/slizone_build_psu.html

under 3 580/480 all but like 2 are 1200 watts

i like the antec tpq 1200 due to it having over 250 amps on the 12volt apposed to the corsair at 100 amps,
    
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post #3 of 61
Corsair AX1200

The GTX 580's are power devourers. One would need about 430 Watts. 2x 860 watts. Also you are going to have everything else so that adds about 150 watts.

860
+
150
_____
1010. I don't know about your optical drives because they usually like to consume power. so if you have 1=about 35 watts. and the corsair ax1200 is a great quality psu with a great amount of watts.

PLEASE DON'T SHOW HATRED.

~Alex K.
Clock On!
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post #4 of 61
Your 1000W PSU should handle it, but I like to always have room. I would get a 1200W so I have room.

Trying to find linkie.....

http://www.newegg.com/Product/Produc...82E16817139014

This is very expensive....
http://www.newegg.com/Product/Produc...82E16817703012
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post #5 of 61
Quote:
Originally Posted by wermad View Post
Also, anyone know what the conversion method/equation is to convert the total system consumption displayed on the Kill-A-Watt to its efficiency (is that even the correct termonology:confused) or actual power draw @ the psu?
it depends on the power rating of your power supply, if what you see in a killa watt says 1000w out of the wall, and you have a bronze rated psu ( i believe 80% efficiency) then what your system is getting is 800 watts from the 1000w pulled from the wall.
    
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post #6 of 61
Quote:
Originally Posted by GreekBostonBoy+ View Post
Corsair AX1200

The GTX 580's are power devourers. One would need about 430 Watts. 2x 860 watts. Also you are going to have everything else so that adds about 150 watts.

860
+
150
_____
1010. I don't know about your optical drives because they usually like to consume power. so if you have 1=about 35 watts. and the corsair ax1200 is a great quality psu with a great amount of watts.

PLEASE DON'T SHOW HATRED.

~Alex K.
Clock On!
they dont double on power consumption btw but id go with the antec hcp 1200
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post #7 of 61
Quote:
Originally Posted by wrxxx View Post
it depends on the power rating of your power supply, if what you see in a killa watt says 1000w out of the wall, and you have a bronze rated psu ( i believe 80% efficiency) then what your system is getting is 800 watts from the 1000w pulled from the wall.
I believe he has the same unit I do, which is 80+ GOLD, not bronze. It's a pretty dang good unit from what I've read.
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post #8 of 61
Quote:
Originally Posted by knoxy_14 View Post
they dont double on power consumption btw but id go with the antec hcp 1200

i would second the antec hcp 1200, extremely good psu, there are some guys pulling over 1500 watts on that psu and its running strong.

i got the tpq due to that being the only one available when i purchased it,

Quote:
Originally Posted by Littlescroll View Post
I believe he has the same unit I do, which is 80+ GOLD, not bronze. It's a pretty dang good unit from what I've read.
safe bet is to just take 80% of what it reads, its hard to judge because all psu's efficency depends on how much it is pulling at that point in time, some spots could be 50% some could be 95.

typically 80 is the standard under load golds may see as high as 90 under load
    
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post #9 of 61
Stickied...for a reason.

http://www.overclock.net/power-suppl...-supplies.html

Silverstone Strider Gold 1200w
Antec HCP 1200w
Corsair AX1200

All solid choices
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post #10 of 61
If you're overclocking them a lot, stay away from synthetic worst-case-scenario stress tests. Other than that, your OCZ ZX1000 is up to the task.
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