Is the new SeaSonic SS400 ~really~ ATX2.0?

BrianF · Post by **BrianF** » Thu May 05, 2005 5:03 am

I dont think it has 2 12V rails. Looking at the side panel of the latest edition, there is no 12V2 rating (like there is on the new S12s), and looking at the specs acording the NewEgg, it does not have dual 12V rails.

According to formfactors.org, if 12V is higher than 18A (in the case of the SS400, it is 22A), a second rail should be made availiable. I guess that word "should" makes it ok for someone to claim ATX2.0 without having 2 rails but I wonder how some of you feel about it....

sthayashi · Post by **sthayashi** » Thu May 05, 2005 5:23 am

Um... I thought the SS-400 was rated ATX 1.3 which would be consistant with a single 12V rail PSU.

paapaa · Post by **paapaa** » Thu May 05, 2005 5:30 am

BrianF wrote:Is the new SeaSonic SS400 ~really~ ATX2.0?

No, and it's not even supposed to be:

http://www.seasonicusa.com/products.php?lineId=4

"Seasonic's Super Silencer series of power supplies is designed to conform fully to the new ATX12V rev. 1.3 PSU Guideline."

Who claimed it is ATX 2.0?

BrianF · Post by **BrianF** » Thu May 05, 2005 5:42 am

They did. On that VERY page you link to:

SEPT 2004: The latest revisions of the 400W and 460W models are now All-in-One: PCI Express ready, with both ATX12V v2.0 and EPS12V compatibility.

I beleive if one consults the lable of these latest revision models, you will find there is no 12V2, though as I said, maybe its still ok to claim 2.0 because the ATX spec uses the word "should" there.

I just wonder how others felt about this because I had previously assumed that 2.0 meant dual 12V rails.

Post by **Rusty075** » Thu May 05, 2005 5:45 am

Newegg's sells the Super Tornado 400, the SS-400FB, which is ATX12v 1.3 for the early revisions, and ATX12v 2.0 for the later A3 revision. I wouldn't count on their product pics as being accurate of what they actually have in stock.

Tibors · Post by **Tibors** » Thu May 05, 2005 1:14 pm

Seasonic wrote:SEPT 2004: The latest revisions of the 400W and 460W models are now All-in-One: PCI Express ready, with both ATX12V v2.0 and EPS12V compatibility.

It is sneaky word play. For ATX12V v2.0 compliance you need 2 rails. What Seasonic wrote, just means that you can use them in any place where you would use a ATX12V v2.0 or EPS12V PSU and it will work.

Post by **Rusty075** » Thu May 05, 2005 1:28 pm

Perhaps the better question is, "Why buy the Super Silencer at all when the S12's, which have no doubts as to their 2.0 compliance, are more efficient, quieter, and the same price?"

In fact Newegg has the S12-380 for $10 less than the SS400FB.

BrianF · Post by **BrianF** » Fri May 06, 2005 3:23 am

Indeed, well said Rusty.

Normally I'd steer clear of PSUs with bottom intake, but from testimonies I'm reading, the S12s dont seem to fall prey to the usual scenario of "CPU heat goes in, speeds up fan, PSU gets loud".

An S12 430 may just be my next purchase (if only it had a PCIE connector...just in case).

rei · Post by **rei** » Fri May 06, 2005 10:28 am

my s12-430 has a pcie connector.

ilh · Post by **ilh** » Fri May 06, 2005 10:42 am

The 6-pin, 3x +12V and 3x GND PCIe connector? I didn't think the 430 had that.

rei · Post by **rei** » Tue May 10, 2005 12:23 am

sorry, it's only s12-500+

Is the new SeaSonic SS400 ~really~ ATX2.0?

Is the new SeaSonic SS400 ~really~ ATX2.0?

Re: Is the new SeaSonic SS400 ~really~ ATX2.0?