PSU: Sonata 1 vs Sonata 2

[WobbleWobble]

I've been comparing the SmartPower and TruePower line and just noticed that the Sonata 2 "only" comes with a SmartPower instead of a TruePower.

The Sonata 1 comes with a TruePower 380S which has
3.3V - 28A
5V - 35A
12V - 24A

I'm assuming those numbers are for newer revisions of the Sonata PSU, not the 18A 12V version that was initially released.

While the Sonata 2 comes with a SmartPower 2.0 450 which has
3.3V - 32A
5V - 30A
12V1 - 15A
12V2 - 17A

It seems that the new 450W PSU that the Sonata 2 isn't as big of an upgrade as I initially thought it once because I neglected to notice that the PSUs come from different family lines. Did anyone else notice this? I think it kind of sucks that Antec would downgrade the Sonata 2's PSU from a TruePower line PSU to a Smartpower one.

 

[furballi]

I doubt that the new PSU can deliver 15A AND 17A at 12VDC. More creative labeling from Antec. My Enermax 495 Noisertaker V2.0 is rated at 18A x 2, but the maximum continuous output for both is 32A.

That said, the PSU should work fine for most systems.

 

[Bucks]

meh, it is still a great psu.

 

[JEDIYoda]

"I doubt that the new PSU can deliver 15A AND 17A at 12VDC. More creative labeling from Antec."

Im new to these forums so please humor my question.....
What would lead you to doubt that the new PSU can deliver 15A AND 17A at 12VDC?

I have found that on my other PC Antec products to be more than upto the task.
Or are we discussing apples and oranges.....🙂
Maybe brand preferences......

 

[furballi]

Per the spec, +5V, +12V1, 12V2 and +3.3V maximum output: 410 Watts max.

The 3.3V and 5V rails will normally account for about 22% of the total power used by a system. That leaves about 320 watts for both 12V rails. That's only a total of 27A vs. the rated 32A.

If the PSU is to deliver both 15A and 17A at 12VDC, then there will only be 26 watts left for the 5V and 3.3V rails.

A quality PSU will include a max current rating for both 12V rails.