Corsair's 1000w Psu Preview

[Wingz]

Need a bit more juice? doubt it but Corsair has one for you to consider.

Says it has 2 Independant 40amp +12v Rails

http://img525.imageshack.us/img525/7619/imageviewphppc5.jpg

Found it at http://www.hardwaresecrets.com/article/484

[Sparky]

80A total 12V...? :eek:

Need jonnyguru to get a hold of one of these and do a complete rundown on it. Even though I doubt I'll need any more than my HX620 for a long time I'm still always interested in new stuff :D

[jonnyGURU]

Isn't this unit already available with a "Thermaltake Toughpower" label on it? ;)

[Oklahoma Wolf]

It'll be like reviewing my main rig's PSU ;)

[dinos22]

:up: good to see a 1kW PSU from them
will come in handy for GFX card benching if they send one over for testing :)

[Sparky]

Isn't this unit already available with a "Thermaltake Toughpower" label on it? ;)

Well, OK, if it is the exact same thing I suppose so... But I recall a certain Zalman unit you reviewed which at first seemed like only a FSP Epsilon with a heatpipe in it but then apparently had something changed since it didn't have the overspec ripple, so this could be a little different ;) :p:

Example, looking at the label comparisons:

http://images10.newegg.com/NeweggImage/productimage/17-153-053-04.jpg
http://img525.imageshack.us/img525/7619/imageviewphppc5.jpg

Close, but not quite? The 3.3V rail and 5V rail are separated from each other, and there are supposedly 4A less on the Corsair (meaning the toughpower could do 1008W on 12V alone?)... now is that just due to differences in the labeling (and Corsair telling the truth about the multiple 12V rails unlike Thermaltake) or is there actually something a little different inside? :confused:

[jonnyGURU]

Close, but not quite? The 3.3V rail and 5V rail are separated from each other, and there are supposedly 4A less on the Corsair (meaning the toughpower could do 1008W on 12V alone?)... now is that just due to differences in the labeling (and Corsair telling the truth about the multiple 12V rails unlike Thermaltake) or is there actually something a little different inside? :confused:

That's not really how it works. ;) Rails are not additive.

All Corsair did here is remove the OCP and re-arrange the label. Thermaltake shows each +12V transformer as capable of 500W, but you have the +3.3V and +5V there too, so you really can't load the +12V up to 500W because you can't have no load on the +3.3V and +5V. Despite the way the Thermaltake label looks, they (the +3.3V and +5V) are working off the same transformers, so everyone has to be able to have a piece of the pie. If anything, the Corsair label is a little more "honest" because it takes into consideration that the +3.3V and +5V are going to have to use some of that power.

[[Spectre]]

Well, OK, if it is the exact same thing I suppose so... But I recall a certain Zalman unit you reviewed which at first seemed like only a FSP Epsilon with a heatpipe in it but then apparently had something changed since it didn't have the overspec ripple, so this could be a little different ;) :p:

Example, looking at the label comparisons:

http://images10.newegg.com/NeweggImage/productimage/17-153-053-04.jpg
http://img525.imageshack.us/img525/7619/imageviewphppc5.jpg

Close, but not quite? The 3.3V rail and 5V rail are separated from each other, and there are supposedly 4A less on the Corsair (meaning the toughpower could do 1008W on 12V alone?)... now is that just due to differences in the labeling (and Corsair telling the truth about the multiple 12V rails unlike Thermaltake) or is there actually something a little different inside? :confused:

The Toughpower 1200w could indeed do 100A on the 12v so I don't really doubt the 1000w could do its full 1000w on the 12v. All that has happened in all likelyhood is a different set of OCP parameters.

[Jedda]

Two or triple transformers? There's some variation in leads at least from the Toughpower.

[Sparky]

That's not really how it works. ;) Rails are not additive.

Not questioning to be a pain, but because I want to learn more. I know rails aren't usually additive (since they all come from the same transformer usually anyway) But since there is 40A on 12V rail 1 and 40A on 12V rail 2, which are truely separate on this unit, wouldn't those add up then for 80A?

Then that is 480W per transformer, so you'd have 20W left for the 5V and 20W for the 3.3V if you maxed out the 80A on the 12V, which yeah isn't much at all but Corsair seems to have a background of allowing such (example being 50A or 600W max, on the HX620, leaving only 20W left for the 5V and 3.3V if it was maxed out).

So couldn't they add up in this case to 80A total for 12V or is my logic all flawed?


All Corsair did here is remove the OCP and re-arrange the label. Thermaltake shows each +12V transformer as capable of 500W, but you have the +3.3V and +5V there too, so you really can't load the +12V up to 500W because you can't have no load on the +3.3V and +5V. Despite the way the Thermaltake label looks, they (the +3.3V and +5V) are working off the same transformers, so everyone has to be able to have a piece of the pie. If anything, the Corsair label is a little more "honest" because it takes into consideration that the +3.3V and +5V are going to have to use some of that power.

I see how that works there and what Tt did, OK. That makes more sense now. If nothing else then I like the Corsair better since it is more honest hehe :D

[[Spectre]]

Two or triple transformers? There's some variation in leads at least from the Toughpower.

Two. What variation?

[jonnyGURU]

Two or triple transformers? There's some variation in leads at least from the Toughpower.

We say "dual" or "two" transformer because we don't count the third transformer because it's a given you have a seperate +5VSB transformer since that rail is always live.

[jonnyGURU]

Not questioning to be a pain, but because I want to learn more. I know rails aren't usually additive (since they all come from the same transformer usually anyway) But since there is 40A on 12V rail 1 and 40A on 12V rail 2, which are truely separate on this unit, wouldn't those add up then for 80A?

Then that is 480W per transformer, so you'd have 20W left for the 5V and 20W for the 3.3V if you maxed out the 80A on the 12V, which yeah isn't much at all but Corsair seems to have a background of allowing such (example being 50A or 600W max, on the HX620, leaving only 20W left for the 5V and 3.3V if it was maxed out).

So couldn't they add up in this case to 80A total for 12V or is my logic all flawed?


Flawed. Again, you're adding. ;)

The transformers are only going to be able to put out so much power each, then that power is regulated accordingly into what we know as "rails." Over all you're going to have a limit of what the unit can do because of whatever limitations the input rectifier and the switching transistors on the primary side.

Yeah.. I agree. I like the Corsair better if, for any reason, having a more honest label. :D

[Jedda]

;2493090']Two. What variation?

One has a 4-pin cpu socket power lead and the other doesn't is one difference I remember.

[[Spectre]]

One has a 4-pin cpu socket power lead and the other doesn't is one difference I remember.

That doesn't have anything to do with the number of transformers. Are you talking about wiring harness and transformers together?

[jonnyGURU]

Abort! Abort!

[merlot_14]

Cool, but what normal person needs this amount of juice?

[Sparky]

Abort! Abort!

:confused:

[Polizei]

Sparks, take a look at the Mushkin PSU review on the homepage of XS. Its got 4x 12v rails each rated at the max 20A. What youre saying is that they would add up to 80A, but IIRC, that PSU is only good for 44A.

You cant max out all 12v outputs at the same time on most multi-rail PSUs, they cant push that many amps.

[Sparky]

Sparks, take a look at the Mushkin PSU review on the homepage of XS. Its got 4x 12v rails each rated at the max 20A. What youre saying is that they would add up to 80A, but IIRC, that PSU is only good for 44A.

You cant max out all 12v outputs at the same time on most multi-rail PSUs, they cant push that many amps.

No that's not what I was saying. The mushkin has 1 single transformer so yeah you can't add it up (as with most multi-rail PSUs) since it all comes from the same source.

But I thought since this is 40A from transformer 1 and 40A from transformer 2, well you could add them up since they aren't these "fake" rails that many multi-rail PSUs have. That was the logic behind my reasoning.

[jonnyGURU]

No that's not what I was saying. The mushkin has 1 single transformer so yeah you can't add it up (as with most multi-rail PSUs) since it all comes from the same source.

But I thought since this is 40A from transformer 1 and 40A from transformer 2, well you could add them up since they aren't these "fake" rails that many multi-rail PSUs have. That was the logic behind my reasoning.

You are correct. Since these transformers are separate, the +12V rails can be additive on this unit. In other words 12 * 40 = 480, 480 * 2 = 960. That goes back to the Corsair having the "more honest" label. The way the Thermaltake label eludes it is that all of the transformer's capability can be used to put out +12V, which would mean you could load the PSU up to 1000W without any load on the +3.3V and +5V, which is NOT true.

[[Spectre]]

You are correct. Since these transformers are separate, the +12V rails can be additive on this unit. In other words 12 * 40 = 480, 480 * 2 = 960. That goes back to the Corsair having the "more honest" label. The way the Thermaltake label eludes it is that all of the transformer's capability can be used to put out +12V, which would mean you could load the PSU up to 1000W without any load on the +3.3V and +5V, which is NOT true.

But you can load the unit up to 100A 12v on the 1200w model with a small load on the 3.3v and 5v rail......although wish I had tried to do it without...oh well live and learn.