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Would this PSU (OCZ600SXS) work with GeForce 560 or similar GPUs?

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May 9, 2012 3:23:14 AM

I have an OCZ StealthXStream OCZ600SXS 600W PSU. It's 2 years old, but never been actually used (just been sitting in the closet in its original box).
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

My dilemma is whether it would work with newer graphics cards such as GeForce 560 or 560Ti or similar. I haven't yet decided on which exact card I will go with, but it could likely be something like that.

This PSU says it has 4 different 12V rails rated at 18A each. It has 2 different PCI-E 6-pin connectors on one rail as far as I can tell. Here's shot of the PSU:



On this page
http://www.geforce.com/hardware/desktop-gpus/geforce-gt...
...it says it needs 500W minimum for the system, and 170W for the maximum graphics card power, 2 x 6-pin. It doesn't mention anything about the 12V rails and such.

Any advice from the PSU gurus?

More about : psu ocz600sxs work geforce 560 similar gpus

a b U Graphics card
May 9, 2012 3:31:05 AM

It will run it with no problem. I am powering a GTX560Ti 448 core with an OCZ Fatality 550 watt psu. You can easily run anything up to a GTX570 with that unit you have. My card, which is basically a gimped 570, says it requires 38 amps, so a 560 is probably around 32a
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a c 122 ) Power supply
a c 186 U Graphics card
May 9, 2012 3:48:14 AM

I am not 100 percent sure but i think you'll be fine.
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May 9, 2012 4:12:25 AM

GI_JONES said:
It will run it with no problem. I am powering a GTX560Ti 448 core with an OCZ Fatality 550 watt psu. You can easily run anything up to a GTX570 with that unit you have. My card, which is basically a gimped 570, says it requires 38 amps, so a 560 is probably around 32a


Yeah, but what about that 18A per 12V rail? I'm a little confused about how to interpret those 4 x 12V rails at 18A each.
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a c 267 ) Power supply
a c 263 U Graphics card
May 9, 2012 4:12:59 AM

Older OCZ power supplies were hit or miss as far as quality goes but that model is a good one. Hardwaresecrets recommends it.

http://www.hardwaresecrets.com/article/451

It is plenty of power for the cards you are considering.
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Best solution

a c 267 ) Power supply
a c 263 U Graphics card
May 9, 2012 4:20:44 AM

You read the 18 amps per rail as maximum peak output. See underneath that where it lists maximum combined power? It shows 580 watts on the 12v rail. So we divide that by 12 and get a max of 48 amps continuous on the 12v rail.

That power supply would run a GTX 580 just fine even with overclocking your CPU and GPU.
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May 9, 2012 4:25:10 AM

I see. That makes sense. But what is the 18A per rail for, then?
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a c 267 ) Power supply
a c 263 U Graphics card
May 9, 2012 4:26:49 AM

It's just a peak power per rail rating.
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May 9, 2012 4:29:25 AM

Well, that's where I'm confused... If a "hefty" video card such as 560 or 570 requires 30+ A of power, I'm getting that power from a 6-pin PCIE connector which comes from one 12V rail with a peak power of 18A, am I exceeding the allowed power draw on that rail?
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a c 267 ) Power supply
a c 263 U Graphics card
May 9, 2012 4:32:40 AM

No. Because the power is still distributed where it is needed. It is just produced by 4 "rails" and not a single more powerful rail. This explains multiple rails pretty well.

http://en.wikipedia.org/wiki/Power_supply_unit_(computer)
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a c 267 ) Power supply
a c 263 U Graphics card
May 9, 2012 4:34:41 AM

Basically the number of rails does not really matter. The power goes where it is needed. All you really need to be concerned with is the number of continuous amps on the 12v rail not how they are generated.
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May 9, 2012 4:39:29 AM

Gotcha. Thanks for taking time to explain that. I think I'm good to go.

Also, I'm happy that my decision 2 yrs ago to keep this PSU boxed up until it was needed is finally paying off. :-)
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May 9, 2012 4:39:51 AM

Best answer selected by the_jiveman.
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a c 267 ) Power supply
a c 263 U Graphics card
May 9, 2012 4:41:47 AM

Glad to help. Enjoy the new GPU!
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a b U Graphics card
May 9, 2012 6:26:08 AM

I did the exact same thing with my OCZ fatality 550 watt. I bought one on sale and liked it. about 3 months later Newegg had it on sale again with a nice rebate so I paid $25.00 for it in the end. That was about 2 years ago. I ran the one til a month ago, bought a new graphics card, and installed the "new" psu with the card. Retired the other for a spare.
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September 19, 2012 5:15:31 PM

Hey guys! I really don't want to start a new thread and just want a straight answer.
OCZ StealthXStream 500W is on sale from 70$ to 45-50$ in one of the stores which are 60KM away from me.
I was thinking about buying a new PC (custom build).
965 BE
GA 970A UD3
8GB @ 1866
Asus 7770 DC
Seagate 500GB
...

So my question is, would the PSU be enough for this system, because I do intend to OC to 4 - 4.5 - 5GHz when I get a nice cooler?
And I may also OC the GPU.
So, is this PSU enough for my needs?
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