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Can this PSU Power a GTX 580

Last response: in Components
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December 25, 2010 3:30:01 PM

I know I recently made a post about whether or not 6+2 PCI is the same as a 8 PCI connector, but here's my next problem....

I may not have enough AMPs to even run the GTX 580, and I do not really want to return it after just getting it for Christmas lol

Was wondering if someone could help me out, and inform me whether or not this has enough amps per rail to actually power it. Thanks :( 

I know its 42 Amps per 12v Rail, but is that just for one rail? or is that just for two of them? Is that all of them combined?


http://www.flickr.com/photos/56041721@N03/5186058974/

Thanks again!

More about : psu power gtx 580

a b ) Power supply
December 25, 2010 5:13:47 PM

Requirements
Minimum of a 600 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 42 Amps.)

Well please list your cpu how many case fans drives hard drives and such

if you have a I7 or a 6core amd i wouldn't even try lol because that power supply says its 750 watts but it doesn't put out 750 prolly around 600-650
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a b ) Power supply
December 25, 2010 5:25:06 PM

Not sure what cpu you are using but a typical cpu should be ok.

I think with a mid cpu your going to have around 50+Amps on the 12v so ok.

If you are talking high end OC'd then it might get tight. :( 
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a b ) Power supply
December 25, 2010 5:29:17 PM

In hardcore long gaming periods when that fan kicks up to 70%-90% it will suck more then the min req for a psu
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a b ) Power supply
December 25, 2010 5:40:34 PM


Total system draw 350-500 watts tops. lol. i think that incorrect.

sportsfanboy said:
Provided the PSU is working properly, you should be fine. Your total system draw will be somewhere around 350 to 500w tops.

http://www.anandtech.com/show/4008/nvidias-geforce-gtx-...

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December 25, 2010 5:43:17 PM

How am I wrong? Proof? I'm pretty sure Amandtech is reliable, if you have proof to the contrary please let us know.
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a b ) Power supply
December 25, 2010 5:52:24 PM

For the whole system it would be more then that maybe for the card alone. it takes more then that to run the whole system during gaming---that site doesn't tell us his total system draw unless you are just talking about the card.
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December 25, 2010 5:56:10 PM

No sorry it's total system power draw believe it. Those aren't arbitrary numbers my friend.
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a b ) Power supply
December 25, 2010 5:58:25 PM

Ill agree to disagree i think that it would pull around 600 or more at total load. :) 
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December 25, 2010 6:01:55 PM

Ok but Amandtech actually tested it,not sure what there is to disagree with. I can find other sites to back that up if you really want.
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a b ) Power supply
December 25, 2010 6:02:31 PM

Damn, that means Guru are also lying, I used to trust them. :pfff: 
http://www.guru3d.com/article/geforce-gtx-580-review/7

Quote:
We estimate and calculate here based on four hours GPU intensive gaming per day / 5 days a week with this card.


447w This is the entire PC (not just the card as just measured)

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December 25, 2010 6:03:41 PM

On a side note... The OP doesn't have a great name brand/trusted psu. If it was the same brand and 500w, I would be a tad nervous about using it with the gtx 580, however it is 750w and he should be fine.
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a b ) Power supply
December 25, 2010 6:05:55 PM

According to that size the gpu alone is taking 389 watts at load in crysis. that is not adding into fact all the other components. so your mark at 350-50 is biases
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a b ) Power supply
December 25, 2010 6:07:02 PM

I give up your right why even bother.
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December 25, 2010 6:11:04 PM

LOL it is, systems don't use that much power without high end graphics. I think a hard drive uses something like 4watts. A ssd uses practically nothing. A high end cpu might use 150w severely overclocked(more like 95w stock), and that's a 1366 socket quad @ 4.2ghz.

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a b ) Power supply
December 25, 2010 6:21:57 PM

Guru run their tests on high end OC'd i7's, so basically if you go by their rec's you should be safe.

They also give actual gpu consumption against total system draw which is also interesting.

You live you learn, what are the mV ratings on 12v rails?
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December 25, 2010 7:26:22 PM

Wow, this kind of blew up, didnt think it would be this in-depth, which I thank you guys for

I have an I7 920, Its Stock, not overclocked.
I have two case fans (unsure of the size)
I have only One Hard drive

As for mV, I am unsure.

IDK if this helps, its the spec sheet for the PSU
http://www.delta.com.tw/product/ps/sps/clone/download/p...

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December 25, 2010 7:32:40 PM

my only concern is that it will not have enough Amps from the 12v Rails

:( 
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a b ) Power supply
December 25, 2010 7:51:56 PM

According to what they say you'll be just fine. no worries it will run great for you.
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December 25, 2010 8:44:39 PM

cia24 said:
According to what they say you'll be just fine. no worries it will run great for you.


Well I really hope so, but my concern is that the Card Requires 42 Amps on the 12V Rail

I have 4 Rails, each allocating 18 amps. If I am only going to be using 2 of them, wont I only be giving it 36 amps?
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a b ) Power supply
December 25, 2010 9:40:00 PM

Ok let me make you feel better i am using a 950 watt psu that really only puts out 600 or so because its a crap coolmax im running 2 power hungry gtx 465's in sli overclocked and i dont have a probume so you wont
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a b ) Power supply
December 25, 2010 9:53:28 PM

Lets say your system draws 160w from the 650w, leaves 490w on the 12v = 41A which means its tight like i said.

But this is with everything maxed out, cpu, hdd, drives etc, so when is that going to happen???

Should be ok.
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December 25, 2010 10:06:18 PM

beanoslim said:
Lets say your system draws 160w from the 650w, leaves 490w on the 12v = 41A which means its tight like i said.

But this is with everything maxed out, cpu, hdd, drives etc, so when is that going to happen???

Should be ok.


I guess I am just a bit confused, and I am sorry I keep asking questions that may be very "stupid" or "easy questions" but, that 490w that is left over, how much can those two connectors (the 6 pin and the 6+2 pin) actually use and allocate to the Video Card, like is there enough power on the rails themselves to power the card.

I know there may be 41A left, but how much can those two connectors use?

Sorry if I am confusing the hell out of you, I am confusing the *** out of myself as well...

I just want to make sure the multiple 12v Rails are capable of providing the required amps to the card.

Thanks

and again, sorry if this sounds retarded...
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December 25, 2010 10:12:33 PM

Guys, maybe I've lost something about PSU market, but I've never heard about Delta Eletronics PSU.
Don't get me wrong, but it makes no sense to get the best of the best in terms of gpus and trying to make it run on 3rd+ tier psu.
If you are willing to spend some $500, then get a 570GTX ($350), plus a Seasonic 80 Plus Gold ($150 for the 750W).
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December 25, 2010 10:23:33 PM

Sure a seasonic would be great but he doesn't have one. The 750w psu he has should work if fully functional.
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a b ) Power supply
December 25, 2010 10:38:14 PM

cia24 said:
I give up your right why even bother.

you have no clue what the hell ur talking about. lol
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a b ) Power supply
December 25, 2010 10:39:51 PM

delta is a very popular oem. they make psus under their own name (often found in oem pcs like dells, etc). they also are the manufacturer of many units sold by antec and many other companies. so delta is a reputable, usually quite good manufacturer.

so in respone to your question, yes your psu can handle the cards.
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a b ) Power supply
December 25, 2010 11:15:33 PM

Don't Delta make the laptop psu's for Acer, I think Acer mainly use Delta and Liteon.

Is it the same Delta that makes decent fans, they are an American company I think?

Do you know what the Mv rating is on the 12v rail SN?
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December 25, 2010 11:21:37 PM

beanoslim said:
Yeah I think reassurance is what the OP is after, it is confusing, maybe this will help.
http://forums.nvidia.com/index.php?showtopic=187389


So essentially, the video card will not be using 42 amps? From what I read there, it will be using 244 Watts, and from the Guru site you linked earlier, under max load, will be using 280 watts. Divide that by 12, and you get 23 Amps. Which the two rails I will be using for the card provide more than enough for.

Is this correct logic? lol
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a b ) Power supply
December 25, 2010 11:25:39 PM

Indeed, unless I am illogical I believe that to be logical. :D 
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a b ) Power supply
December 25, 2010 11:25:42 PM

yes its fine.
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December 26, 2010 3:33:09 AM

beanoslim said:
Indeed, unless I am illogical I believe that to be logical. :D 

Just a question then

Does that mean the whole idea of a Video Card using a 6 pin and a 8 pin connector only taking in 225 watts, (75 for the 5 pin, 150 for the 8 pin) is false? Or is it consuming Extra watts from elsewhere?

Such as from the MoBO?
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December 26, 2010 3:37:30 AM

And sorry again for another reply, what is a mV Rating?
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