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Seasonic S12II 620W Bronze. Bad choice?

post #1 of 8
Thread Starter 
Hi, I just bought a Seasonic S12II 620W for my friend's gaming build. I know the Antec High Current Gamer 620W is a rebrand of the Seasonic S12II, but the voltage regulation on the minor rails are known to be poor. Is this applicable to the Seasonic S12II 620W? What is the difference between them component wise?

Also, when compared to the M12II 620W, are there any difference between the two? Besides modular cabling of course. tongue.gif
Edited by sooyong94 - 3/13/14 at 5:42pm
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post #2 of 8
Looking at a Seasonic S12IIB review and i dont see any problems with voltage regulation

See alot worse in many newer units
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post #3 of 8
Thread Starter 
Are they using the same components? Since TPU reviews are telling me that the Antec one fails the voltage regulation test at +3.3V and +5V when the unit is crossloaded. What is crossloading a PSU?
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post #4 of 8
Quote:
Originally Posted by sooyong94 View Post

Are they using the same components? Since TPU reviews are telling me that the Antec one fails the voltage regulation test at +3.3V and +5V when the unit is crossloaded. What is crossloading a PSU?

Dont know what Antec has done to the HCG or if it was a bad oneoff TPU got but the S12IIB is nothing like it

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=185
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post #5 of 8
Hard to say, different testing methodologies, equipment used, how it is programmed etc.. performance can differ wildly between reviewers.
Just a note, you will very rarely see the stress they put on the cross load, if using the PSU in a Pc, especially for gaming.
For mining, you may have a point on the +12v crossload tests, but isn't this a DC-DC unit?
    
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post #6 of 8
I had the Seasonic S12II in a build for almost two years and never encountered any problems, even when overclocked, so I think you'll be fine. It is a great budget unit thumb.gif
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post #7 of 8
Quote:
Originally Posted by xnotx2 View Post

Hard to say, different testing methodologies, equipment used, how it is programmed etc.. performance can differ wildly between reviewers.
Just a note, you will very rarely see the stress they put on the cross load, if using the PSU in a Pc, especially for gaming.
For mining, you may have a point on the +12v crossload tests, but isn't this a DC-DC unit?

Nah, it's a bog-standard double-forward group regulated unit, no DC-DC.
Quote:
Originally Posted by sooyong94 View Post

Are they using the same components? Since TPU reviews are telling me that the Antec one fails the voltage regulation test at +3.3V and +5V when the unit is crossloaded. What is crossloading a PSU?
Pretty much the same other than the fan and connectors / housing. Same for M12II 620W.

The "crossload 1" test some reviewers do, with the heavy load on +3.3V and +5V and little on +12V, corresponds to conditions no computer will ever see. Maybe something from the 20th century without hard drives, possibly. It's kind of an academic exercise, not any real cause for concern if that goes wrong. A typical computer in the last several years and more may draw say 90% of its power from +12V. Some gaming builds might even peak at more; a fileserver with a bunch of drives when they're all spun up may have considerably less but nothing approaching even a 50-50 split, where TPU's crossload is like 15-85).

In other words, not really a concern. Cheaper power supplies tend to have group voltage regulation and have these issues under unrealistic test conditions (and a little worse performance overall under the realistic ones, though heavily depending on design and the load you use).
post #8 of 8
Quote:
Originally Posted by mikeaj View Post

Nah, it's a bog-standard double-forward group regulated unit, no DC-DC.
Pretty much the same other than the fan and connectors / housing. Same for M12II 620W.

The "crossload 1" test some reviewers do, with the heavy load on +3.3V and +5V and little on +12V, corresponds to conditions no computer will ever see. Maybe something from the 20th century without hard drives, possibly. It's kind of an academic exercise, not any real cause for concern if that goes wrong. A typical computer in the last several years and more may draw say 90% of its power from +12V. Some gaming builds might even peak at more; a fileserver with a bunch of drives when they're all spun up may have considerably less but nothing approaching even a 50-50 split, where TPU's crossload is like 15-85).

In other words, not really a concern. Cheaper power supplies tend to have group voltage regulation and have these issues under unrealistic test conditions (and a little worse performance overall under the realistic ones, though heavily depending on design and the load you use).

Agreed.

If that's the one i'm thinking of it has excellent ripple... I wouldn't be worried, like at all tongue.gif
    
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