Seasonic SS ST difference

[jeremyshaw]

Hello,

I saw 2 PSUs today, both are identical except for:
ST-400H1U and SS-400H1U.

The SS-400H1U is listed on the Seasonic website, while I cannot find any reference for the ST version, other then a few vendors selling such a device. (UL page, too)

They are both the same, and I'm not too sure on what is the difference!

Thank you,
-Jeremy

 

[Dangman]

Links to the PSUs?

 

[jeremyshaw]

Whoops, sorry Danny Bui,

I bought one, the ST-400H1U, then I noticed the Seasonic website makes a refernece to a SS-400H1U.

They are both on this UL page:
http://database.ul.com/cgi-bin/XYV/...n=versionless&parent_id=1073787374&sequence=1

and the SS is here:
http://www.seasonicusa.com/1u.htm

I just cannot find the ST on the Seasonic site, but it's there, on the UL page! Is it an older revision? Or just a bit of wierd Seasonic nomenclature?

Thanks!
-Jeremy

p.s. this review was the final deciding factor, along with some encouragement from the HP Slimline thread we have.
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=131

 

[Zero82z]

Apparently Seasonic used to use SS and ST to distinguish between the noise levels of different PSUs. ST was the louder version. I don't think it'll make a difference in practice though. Go with whichever one is more convenient for you.

 

[jeremyshaw]

Apparently Seasonic used to use SS and ST to distinguish between the noise levels of different PSUs. ST was the louder version. I don't think it'll make a difference in practice though. Go with whichever one is more convenient for you.

HaHa. Thanks Zero82z. I'm a little late for that! (purchase made this morning, only noticed the different model prefixes just before I made this thread).

I intended a 60mm fan case mod for this PSU, already.

I was very concerned SS and ST meant differing qualities/purposes.

These are both 1U server PSU as far as I can tell, and I only saw reviews for the SS variant, so I thought ST meant rebranded units (after checking Seasonic's website and only seeing the SS)...

ST = noise, huh? Did they remove the 'silent fan controller' part? (not that it would matter... those are 2 40mm buzzsaws designed for server use, anyways).

Oh, well. I will keep everybody (who cares) updated in the HP Slimline thread (where I frequent, due to both of the system's in my signuature...)

Thank you!

p.s. If anyone has any differing viewpoints on this, I'm all ears.