Is Seasonic still making Corsair PSUs?

Slider19

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I'm currently in the process of upgrading my system and right now have the Corsair HX520W which was great, but want to get something more beefier for my quad core, 4gb ram, a yet to be decided upon high powered GPU, 2 HDDs.

I like the Antec Signature series as well, but here you're paying for the Antec brand as well. Any other options?
 

Redbeard

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Seasonic makes some of our PSUs, but the best two right now, the HX750 and HX850, are a new platform from CWT. It was a close call between vendors for this, but we felt the CWT platform matched our needs a bit better.

We will still have Seasonic-based products in our lineup, but right now those are the two best units.
 

Dan_D

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Seasonic makes some of our PSUs, but the best two right now, the HX750 and HX850, are a new platform from CWT. It was a close call between vendors for this, but we felt the CWT platform matched our needs a bit better.

We will still have Seasonic-based products in our lineup, but right now those are the two best units.

In the past CWT has made some excellent PSUs. The Thermaltake ToughPower 1200watt for example was built by CWT and was a damned good power supply when it was released.
 

Igneos79

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A 520 rated PSU does not necessarily mean it can maintain 300W at load for a long period of time.

Then again the HX520 might be capable of such a feat, I don't know for sure.

I beleive it even gives more then 520 Watts
 

Zero82z

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Seasonic manufactures the CX400, VX450, HX450, HX520, HX620, and TX650 PSUs for Corsair. However, their HX750 and HX850 are excellent units made by CWT which are just as good as anything Seasonic has to offer (on par with the Seasonic M12D platform which is one of the best out there).

Some other options for great PSUs are the Antec Truepower New series, Seasonic M12D PSUs, and the upcoming XFX 850W Black Edition which is a rebranded single-rail M12D.
A 520 rated PSU does not necessarily mean it can maintain 300W at load for a long period of time.

Then again the HX520 might be capable of such a feat, I don't know for sure.
The HX520 is easily capable of outputting its entire rated capacity over extended periods of time. It is a very good quality PSU.
 

Slider19

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Hmm, in that case, I think I'll stick with the HX520 for my new build as well if its already an efficient PSU.
 

Zero82z

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Hmm, in that case, I think I'll stick with the HX520 for my new build as well if its already an efficient PSU.
Depending on the specific specs of your rig, the HX520 may or may not be enough, but chances are it will be.
 

Igneos79

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Hmm, in that case, I think I'll stick with the HX520 for my new build as well if its already an efficient PSU.

I had a hx1000 corsair psu on my q6600 @ 4 ghz and 4870X2 oc-ed...sold it, bought hx 520 and the system ran just fine, i could have easily put another 4870 X2 on it, and I beleive it would run just fine. Another power consumption link , this time with 4870X2 (this test was run on a 410 W psu)
 

JoeBob

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I wouldn't wager it. Another HD4870X2 would definitely have brought it to its knees, no matter how capable the HX520 might be. The two graphics cards alone would need just about a little more than the total capacity of the PSU.
 

DTN107

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You can't go wrong with a Corsair made by CWT. They been tested and reviewed and pretty much on par with the Corsairs made by Seasonics.
 

Dan_D

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I wouldn't wager it. Another HD4870X2 would definitely have brought it to its knees, no matter how capable the HX520 might be. The two graphics cards alone would need just about a little more than the total capacity of the PSU.

True. They do pull around that by themselves. At least mine did.
 

Zero82z

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You can't go wrong with a Corsair made by CWT. They been tested and reviewed and pretty much on par with the Corsairs made by Seasonics.
Some of them are, but not all of them. I wouldn't put the TX750 or TX850 near the same level as the Seasonic-built units.
 

JonGerow

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Some of them are, but not all of them. I wouldn't put the TX750 or TX850 near the same level as the Seasonic-built units.

I would. The CWT built TX-850, at least from my own experience at testing, has better voltage regulation and just as good efficiency as a Seasonic built 850W.
 

Zero82z

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I would. The CWT built TX-850, at least from my own experience at testing, has better voltage regulation and just as good efficiency as a Seasonic built 850W.
But it has more ripple. They're all certainly great PSUs, but I would take an HX series PSU over a TX.
 

tony27310

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I have both the hx620 (seasonic) and the hx850 and hx750 (CWT), and they havent let me down ever, solid psu's and both received great reviews. either way corsair does a great job with its power supply lines. As far as i know the tx 850 is just a little bit worse than the hx 850 but its still a great psu. But personally i need the modular units, the extra cables would drive me nuts.
 

DTN107

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^
I believe the TX series is the value series. So it doesn't surprise me that it performs under the HX series.
 

tony27310

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I thought the VX was the value series, but if were talking about higher wattage power supplies i guess your right, theres just a stigma witht he word value... which as far as my experience with psu's means the lowest end. I dont think the TX version merits that stigma, but for the price of around 120 bucks the tx looks to have good value.
 

Mav451

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Heh you guys can poo-poo the TX all you want, it fit my needs b/c of a very specific reason, which I've already discussed more than once on these forums.
 

RanceJustice

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The best units are the 750 and 850 HX series? I though the 1000 was the top of the line, or is it built on older/lesser tech compared to those two?
 

[Spectre]

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The best units are the 750 and 850 HX series? I though the 1000 was the top of the line, or is it built on older/lesser tech compared to those two?

Yes it is older, and not as high a quality as the HX 850.
 

Redbeard

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TX and VX should really just be one series. They have exactly the same specs aside from wattage.

Here are the manufacturers by product

CX400 - Seasonic
VX450 - Seasonic
HX450 (discontinued) - Seasonic
HX520 - Seasonic
VX550 - CWT
HX620 - Seasonic
TX650 - Seasonic
TX750 - CWT
HX750 - CWT
TX850 - CWT
HX850 - CWT
HX1000 - CWT


The 750 & 850 units in the TX line are NOT the same units in the HX line, the design in the HX line is significantly newer and has higher efficiency, better ripple and voltage regulation, and of course the better warranty.

The future products (some to be released fairly quickly) will be both CWT and Seasonic-based, but we haven't ruled out anybody else.
 

Redbeard

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The best units are the 750 and 850 HX series? I though the 1000 was the top of the line, or is it built on older/lesser tech compared to those two?

The HX1000 is still one of the best values for a 1000W PSU. Great ripple regulation, voltage regulation, good efficiency, and it's priced very competitively I think. We'll definitely have a replacement for it someday - but that's the way of these things.
 

DTN107

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Heh you guys can poo-poo the TX all you want, it fit my needs b/c of a very specific reason, which I've already discussed more than once on these forums.

No one is really pooing on the TX series.

It is just that people don't seem to like it when other people try to compare the TX with the HX series.

TX is great. HX is better but at a higher price. You can't go wrong with either one.
 

Zero82z

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The future products (some to be released fairly quickly) will be both CWT and Seasonic-based, but we haven't ruled out anybody else.
Will you be discontinuing the HX620 now that the HX650 is coming out?
 

DTN107

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There is a new HX650 coming out?

I wonder if the connectors on the HX650 PSU will be like the HX750 and HX850. They uses like PCI x 16 connectors.

The HX620 uses some non-standard connectors.
 

Zero82z

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There is a new HX650 coming out?

I wonder if the connectors on the HX650 PSU will be like the HX750 and HX850. They uses like PCI x 16 connectors.

The HX620 uses some non-standard connectors.
The HX650 is basically a more efficient HX620 with slightly more wattage. Same connector style as the HX520 and HX620.
 

Redbeard

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The HX650 is basically a more efficient HX620 with slightly more wattage. Same connector style as the HX520 and HX620.

Yeah the HX650 will replace both the HX520 and HX620 eventually.
 

WorldExclusive

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Seasonic makes some of our PSUs, but the best two right now, the HX750 and HX850, are a new platform from CWT. It was a close call between vendors for this, but we felt the CWT platform matched our needs a bit better.

We will still have Seasonic-based products in our lineup, but right now those are the two best units.

When will the 1000HX use the same platform as the 850HX? i.e. 2.3/2.92/Single Rail Design/Hybrid Mode
 

MrWizard6600

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I wouldn't wager it. Another HD4870X2 would definitely have brought it to its knees, no matter how capable the HX520 might be. The two graphics cards alone would need just about a little more than the total capacity of the PSU.

no. theres little doubt in my mind that a quality 520W unit would boot with an HD4870 X2 in it just fine, under load you might get some out of spec voltages (as you push the 12V out of spec), but I suspect you wouldn't notice.
 

Hansen

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Maybe I can ask here instead of making a new thread.

I just ordered a new computer with an i5 750. I am planning to buy a ATI Radeon 5850 in October. The computer will only run with 1 harddrive and 1 graphic card.

I ordered a Corsair 520HX. Should I return it and use some more money on buying the new 650HX?
 

tony27310

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Thats a tough one, but i heard that the 5850 had something like 180 tdp? i would imagine it would cover it. i mean i have the hx620 with 4 hdds a 8800gt and a q9550 overclocked and it holds up just fine. can't imagine the i5 platform being more power hungry than that.
 

AthlonXP

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I think they still are though I tend to stick with their HX series when I build machines.
 

Zero82z

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When will the 1000HX use the same platform as the 850HX? i.e. 2.3/2.92/Single Rail Design/Hybrid Mode
Probably never.
no. theres little doubt in my mind that a quality 520W unit would boot with an HD4870 X2 in it just fine, under load you might get some out of spec voltages (as you push the 12V out of spec), but I suspect you wouldn't notice.
One 4870X2 would be no problem, but two of them probably wouldn't fare too well, which is what JoeBob was pointing out.
Maybe I can ask here instead of making a new thread.

I just ordered a new computer with an i5 750. I am planning to buy a ATI Radeon 5850 in October. The computer will only run with 1 harddrive and 1 graphic card.

I ordered a Corsair 520HX. Should I return it and use some more money on buying the new 650HX?
The HX520 is plenty for your PC. No need to spend more on a PSU that you don't need.
 

Hansen

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Alright, thank you for the replies, tony27310 and Zero82z.

I think I will just stick with 520HX then. I would have chosen the 650HX, but I didn't see it until it was too late. Besides that, I would have to pay the shipping cost of returning it, and the price for 520HX was $70 after mail-in rebate, and 650HX is selling for $130
 

ToastyBread

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The HX650 is basically a more efficient HX620 with slightly more wattage. Same connector style as the HX520 and HX620.
Although if the HX650 is any indication of how any new HX models may be, it appears that Corsair may be going back to using a single 12V rail. The HX620 has three 12V rails at 18A each for a total of 52A, while the new HX650's 52A is delivered by only one 12V rail.
 

[Spectre]

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Although if the HX650 is any indication of how any new HX models may be, it appears that Corsair may be going back to using a single 12V rail. The HX620 has three 12V rails at 18A each for a total of 52A, while the new HX650's 52A is delivered by only one 12V rail.

Only the HX1000 has been a multi 12v rail PSU.....
 

ToastyBread

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Only the HX1000 has been a multi 12v rail PSU.....

From Corsair's website on the HX620:

Triple 12V Rails provide independent reliable power to the CPU, video card and other components with a combined rating of 50A (40A on 520W) maximum! Advanced circuitry design that automatically enables power sharing between the triple +12V rails in an event of overload on any single +12V rail.

So unless I'm missing something... doesn't that translate into the HX620 having 3x 12V rails? I know they're not true independent rails, but it's still splitting one 52A 12V rail into three for separate components, compared to the HX650 leaving the 12V 52A rail untouched.
 
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