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Enphyric

OCZ Powerstream SLI-Ready 520w vs 600w

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Whats best for DFI boards guys? And are there only one rev. made?

 

After I compared them there is 1 big different:

- 520w has a +12V rail @33A

- 600w has +12V1 and +12V2 rail @ 20A / 18A

 

I told my hardware local store to order the 520w SLI-Ready, but would like your opinions.

If he manage to get it at all as there is no Trace of these psu's in Norway, only ModStream exist but it has only 28A on +12V and out of production.

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The 600W one if your wallet can take the hit.

The 520W only has 33A on the +12v, which is below the DFI recommendations for SLI.

I'm aware, and doubt I will be building SLI as it hurts my bucks hehe.

Anyways.... isnt having 2 +12V rails a bad thing? Atleast is what I seen at XS reviews regarding the big Zippy with 45A on one rail. Bad comparison I know but still...

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Still you might want to consider it in case you want to go SLI in a years time, when a second gpu will cost very little, but you will need it. Think about how future proof and upgrade ready you want to be.

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Still you might want to consider it in case you want to go SLI in a years time, when a second gpu will cost very little, but you will need it. Think about how future proof and upgrade ready you want to be.

Or get 520w for now and sell it when the new release from Ocz comes :D

Trying to understand what the benefits are with 2 weak +12V rails vs 1 strong.

thnx

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450W 30A is recommended for single X1900 series products and 550W 38A on CF. So you're good and besides it's been nearly 2-3 weeks since i've had my setup and i only have 28amps on this OCZ 520 Modstream running this X1900XTX. I hope this helps....

 

Opteron 165 @2.6GHz 1.4v

G.SKILL @260MHz 3448 2.6v

X1900XTX @700/1.6GHz

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Mack27

 

you have the modstream 520watt and you not having any problems at all with your X1900XT and opteron at 2.6ghz

 

thats amazing

 

but do u think i should cancel my order for the enermax liberty 620 and get the same PSU as u as it is half the price of the enermax

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There must defently be more then one rev.

 

Some had green lights I think, newer ones have blue.

 

The non EU rev's do have active pfc btw.

So I don't know what those are about, people said they are the ones with active pfc(OCZ ADJ-SLI EU, or -EU, I forgot), but I have a non EU ver and it has it.

 

 

Some rev's I heard have louder fans.

The new ones don't.

 

The louder fan ver's are way better.

I modded mine and it's quite a diffrence in performance and stability :).

There's 4 headers for fans even though there's only 2 fans, all 4 are super low speed that the fans do nothing pretty much.

They are pretty decent fans at full speed though.

 

 

As for the diffrences in the 520 and 600?

I'm not toally sure.

The 600 feeds off one big rail, the +12v.

Then splits these using some tiny @ss caps and such.

Each of these sepereate rails is adjustable but that is locked down by glue and is inside the psu.

There's also a 3rd rail but it's not all there, and nothing hooked to it.

 

 

The 1st and 2nd rails a differ a bit, there's a smd cap on the 2nd.

I'm not sure if this is to increase resistance on the output of the cap(keeping it charged longer), or if it's to lower the voltage.

Each rail has a diffrent output voltage too, the vr's are setup diffrently.

 

 

Anyways some info you may be interested in:

2nd rail: 4+4 pin cpu conector, 20+4pin atx conenctor, the sata connectors.

1st rail: everything else.

 

 

The 520 could be infact that same psu, it's hard to say without one.

I do know that the 600 is longer, I dn, I just dn.

The 600w is good psu though.

 

The +12v vr is for the main rail before it splits btw.

 

That's about all I can tell you that would be somewhat helpful.

Except that you should know it's inportant to keep the psu away from any heat, don't stack it on top of a cpu or anything.

The psu gets hot by it's self.

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The 600W one if your wallet can take the hit.

The 520W only has 33A on the +12v, which is below the DFI recommendations for SLI.

 

The 520 SLI as the name suggests is SLI certified....how is it not enough to run SLI?

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