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  #1  
Old 05-02-2016
sith'ari sith'ari is offline
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Default Corsair SF600 Power Supply Review@ Tom's

http://www.tomshardware.com/reviews/...pply,4537.html

EDIT: This one could have been an amazing PSU, if it wasn't limited by its only 2 pci-e connectors, practically meaning that it can not support any serious SLI/Crossfire.
Other than that, a great performer from Corsair / Great Wall.
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Last edited by sith'ari; 05-02-2016 at 10:52 AM.
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  #2  
Old 05-02-2016
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Great PSU. That 12V regulation is incredible. Performance is top notch for a unit like this, just wonderful.
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Old 05-02-2016
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Itīs funny, but if you compare it with the 450W version review, the 450W version is far more quiet at the same power output?
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Old 05-02-2016
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Quote:
Originally Posted by marcos669 View Post
Itīs funny, but if you compare it with the 450W version review, the 450W version is far more quiet at the same power output?

As Aris said at his review:
Quote:
We expected quieter operation, similar to what we heard from the SF450. However, Corsair decided to tune its fan profile more aggressively, leading to increased noise when the PSU is taxed. Delivering 600W from a compact platform isn't easy, and without adequate cooling reliability can be compromised. But given the SF600's efficiency numbers, we believe that a more relaxed fan profile could be offered.
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  #5  
Old 05-02-2016
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Quote:
Corsair decided to tune its fan profile more aggressively
That's not a completely true statement.

The SF600 fan does start sooner, but beyond that initial 160 RPM start up, the fan on the SF450 ramps up much quicker than the SF600.

In fact, all of the way up to full load the SF450 should still be much quieter than the 600W at 450W load if all other variables are the same (operating temperature, load, etc.)

So if Aris noticed enough difference between the two to comment and he's talking about loads and temperatures BEYOND the PSU start up, either there's a difference in testing operation or a variance in the unit. Perhaps placement of thermistor.

What's funny is provided Aris Corsair's lab data which shows the fan curve. So is use of the words "Corsair decided" is quite interesting.

To be fair, I haven't had a chance to look at both reviews completely and do a side by side to see what exactly is going on, but I will later today.
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Old 05-02-2016
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Quote:
Originally Posted by jonnyGURU View Post
In fact, all of the way up to full load the SF450 should still be much quieter than the 600W at 450W load if all other variables are the same (operating temperature, load, etc.)
I don't state something different in the review. Also from the graphs below it is evident that the fan profile in the SF600 is more aggressive, compared to the relaxed fan profile of the SF450.



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Old 05-02-2016
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Quote:
Originally Posted by jonnyGURU View Post
The SF600 fan does start sooner, but beyond that initial 160 RPM start up, the fan on the SF450 ramps up much quicker than the SF600.
Do you mean just as slope?
Code:
╔═════════╦═════════════╦══════╦═════════╦══════╗
║ Wattage ║    SF450    ║ Diff ║  SF600  ║ Diff ║
╠═════════╬═════════════╬══════╬═════════╬══════╣
║  45W    ║ 1000rpm     ║ ---  ║         ║      ║
║  60W    ║             ║      ║ 2270rpm ║ ---  ║
║  90W    ║ 1000rpm     ║  0%  ║         ║      ║
║ 120W    ║             ║      ║ 2400rpm ║  5%  ║
║ 135W    ║ 1120rpm     ║ 11%  ║         ║      ║
║ 180W    ║ 1470rpm     ║ 31%  ║ 2640rpm ║ 10%  ║
║ 225W    ║ 1725rpm     ║ 17%  ║         ║      ║
║ 240W    ║             ║      ║ 2860rpm ║  8%  ║
║ 270W    ║ 2100rpm     ║ 22%  ║         ║      ║
║ 300W    ║             ║      ║ 3205rpm ║ 12%  ║
║ 315W    ║ 2400rpm     ║ 14%  ║         ║      ║
║ 360W    ║ 2775rpm     ║ 15%  ║ 3640rpm ║ 14%  ║
║ 405W    ║ 3180rpm     ║ 14%  ║         ║      ║
║ 420W    ║             ║      ║ 3750rpm ║  3%  ║
║ 450W    ║ 3450rpm     ║  8%  ║ 3750rpm ║  0%  ║
╚═════════╩═════════════╩══════╩═════════╩══════╝

Quote:
Originally Posted by jonnyGURU View Post
What's funny is provided Aris Corsair's lab data which shows the fan curve. So is use of the words "Corsair decided" is quite interesting.
Did you mean Aris should have realized that something were not going quite right, just looking at those provided lab data?
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Last edited by quest for silence; 05-02-2016 at 01:26 PM.
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  #8  
Old 05-02-2016
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I don't like the fan controller of the SF600W. Definately audible at low load, noisy at full load.
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Old 05-02-2016
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Quote:
Originally Posted by crmaris View Post
I don't state something different in the review. Also from the graphs below it is evident that the fan profile in the SF600 is more aggressive, compared to the relaxed fan profile of the SF450.
Then there's something wrong.

There wasn't a "decision by Corsair" as implied by the review.

I did send you the specification spreadsheets with our own internal testing, didn't I?

I do admit, I had the same issue with SweClocker's unit and I'm trying to get that unit back for testing.
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  #10  
Old 05-02-2016
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I have the reviewer's guide but even if I had a complete report, still I can only comment on what I see and measure with my stuff.

If you think that something is wrong with the sample please feel free to send me another one and I will run the Crossload tests again, which clearly show the unit's fan profile. Since I run them at the same ambient on all cases, we will easily figure if something is wrong.

And to clear any doubts (from readers/users that will state that the second sample is hand picked) Philip could help in getting a random PSU. I could buy one from here (GR) but as I see no shop has it in stock.
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