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Discussion Starter · #1 ·
Hey everyone, I'm about to build my new rig with these components:

Motherboard: Gigabyte Z68MA-D2H-B3
http://www.newegg.com/Product/Produc...82E16813128495

Processor: Intel Core i5-2500K
http://www.newegg.com/Product/Produc...82E16819115072

RAM: 2x4 GB Patriot PC3 12800 (1600 MHz)
http://www.newegg.com/Product/Produc...82E16820220558

GPU: EVGA GTX 470 [requires 38A on +12V rail]
http://www.newegg.com/Product/Produc...82E16814130549

Drives: OCZ Vertex 2 (60 GB), 500 GB Seagate 7400 RPM, DVD+/-RW Optical Drive

I would like to buy a modular power supply as my case is the NZXT Vulcan which accomodates only microATX boards. What power supply can handle this job? Remember, the +12V rail(s) must power at least 38A for the graphics card alone.

==========
P.S.: How would this power supply fare? http://www.newegg.com/Product/Produc...82E16817341017
 

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OCZ doesn't exactly make one of the better power supplies out there. You are going to want say a Corsair, Seasonic or XFX power supply. They may cost a bit more, but you're paying for that quality too.
 

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Stay clear of OCZ, go for a Seasonic, Corsair or Antec.

If you are SLIing 750Watts will be fine.
 

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The psu you linked is fine for that set up. You could do it with a quality 500w if need be.

Also 38 amps is for the whole computer and not just the videocard alone.

Cheers
 

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Well

Yes, 600w will be enough, you won't have enough headroom if you decide on SLi 470's though, if you are thinking of a second one then you'll need more

Guys, why are you slating this PSU, it's on the recommended PSU list. There is NOTHING wrong with it.

http://www.overclock.net/power-supplies/183810-faq-recommended-power-supplies.html
Quote:
Originally Posted by MrTOOSHORT;15290396
The psu you linked is fine for that set up. You could do it with a quality 500w if need be.

Also 38 amps is for the whole computer and not just the videocard alone.

Cheers:)
I wouldn't like to see it on a 500w since the old 400 series pull a lot more power than the 500 series. 600w is about right for a single card.

Comps
 

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Discussion Starter · #6 ·
Quote:


Originally Posted by compuman145
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Well

Yes, 600w will be enough, you won't have enough headroom if you decide on SLi 470's though, if you are thinking of a second one then you'll need more

Yeah I don't plan on adding a second graphics card, everything listed above is what will be in the finalized build.

My concern is, I've never owned a PSU with multiple 12V rails (up until now I've only owned single 12V rail Corsairs). Is the amperage additive?

e.g. with the OCZ I linked (http://www.newegg.com/Product/Produc...82E16817341017), this is the power output:
[email protected], [email protected], [email protected], [email protected], [email protected], [email protected]
 

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There isn't anything wrong with having a single rail vs multi rails... As long as it's a good quality build there isn't any difference.

I would stick with the OCZ that you picked, there is nothing at all wrong with it and it'll put up with your rig with ease.

Comps
 

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Quote:


Originally Posted by compuman145
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Well I wouldn't like to see it on a 500w since the old 400 series pull a lot more power than the 500 series. 600w is about right for a single card.

Comps


My recommendation is from my own experience.

I've ran a 5970 with stock clocks ofcourse off of an Enermax 525w for a few months without issue.

And recently ran two GTX480s off of my Kingwin 550w Platinum with clocks of 750core and 2200 memory without issue either.

I would conclude that a good 500w would easily handle a single GTX470.
 

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I'm not saying it won't handle it, i'm saying it's pushing it and there won't be much headroom. the 600w psu that he's picked is fine.

Also, if you ran SLi 470's on a 550w PSU it'll kill the PSU very quickly, Phaedrus recommends a 750w PSU for SLi 470's...
 

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I think newegg still has the seasonic x-650 on sale. I'd have to highly recommend them based on quality and my experience with the company.

The PSU is a part I want to last forever and be transferred to future build. Keep that in mind.
 

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Quote:


Originally Posted by compuman145
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I'm not saying it won't handle it, i'm saying it's pushing it and there won't be much headroom. the 600w psu that he's picked is fine.

Also, if you ran SLi 470's on a 550w PSU it'll kill the PSU very quickly, Phaedrus recommends a 750w PSU for SLi 470's...

Yes I wouldn't recommend a 550w Kingwin for GTX480 sli at all for anyone and you are probably right on the fact it would die quickly.

I recommend a good 850w for that.

But the fact I can run Furmark at the clocks mentioned with the 550w Kingwin with two GTX480s tells me the 500w is perfectly fine for one GTX470 no problem.
 

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Discussion Starter · #12 ·
Will I have enough "overhead" room with this power supply? e.g. if for some reason all my components were running at max usage/power consumption, would I be stressing this power supply too much?

My concern lies with the [email protected], [email protected] Will this be enough to power a video card that already takes up 38A via two PCI-E connectors, and the i5-2500K (plus everything else)? Or when EVGA says "recommended 550W and 38A on the +12V", are they talking about the whole system?
 

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No you won't, with that GPU and a 600w PSU, you will be 100% fine.

Comps
 

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Quote:
Originally Posted by mingqi53;15290837
Will I have enough "overhead" room with this power supply? e.g. if for some reason all my components were running at max usage/power consumption, would I be stressing this power supply too much?

My concern lies with the [email protected], [email protected] Will this be enough to power a video card that already takes up 38A via two PCI-E connectors, and the i5-2500K (plus everything else)? Or when EVGA says "recommended 550W and 38A on the +12V", are they talking about the whole system?
What Compuman said.

also note that manufacturers say they recommend a 550w or so wattage psu with thier card taking into account that the 550w could be a peice of garbage( putting out like 400w ) just to cover thier butts.
 

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Quote:


Originally Posted by mingqi53
View Post

Hey everyone, I'm about to build my new rig with these components:

Motherboard: Gigabyte Z68MA-D2H-B3
http://www.newegg.com/Product/Produc...82E16813128495

Processor: Intel Core i5-2500K
http://www.newegg.com/Product/Produc...82E16819115072

RAM: 2x4 GB Patriot PC3 12800 (1600 MHz)
http://www.newegg.com/Product/Produc...82E16820220558

GPU: EVGA GTX 470 [requires 38A on +12V rail]
http://www.newegg.com/Product/Produc...82E16814130549

Drives: OCZ Vertex 2 (60 GB), 500 GB Seagate 7400 RPM, DVD+/-RW Optical Drive

I would like to buy a modular power supply as my case is the NZXT Vulcan which accomodates only microATX boards. What power supply can handle this job? Remember, the +12V rail(s) must power at least 38A for the graphics card alone.

==========
P.S.: How would this power supply fare? http://www.newegg.com/Product/Produc...82E16817341017


do you live far from here . . .

http://www.microcenter.com/at_the_stores/houston.html
 
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