[SOLVED] Dual rail PSU. How is the power distributed ?

[Nine Layer Nige]

I just purchased a be quiet! Pure Power 11 FM 650W Gold Power Supply. Manufacture code BN318.
I states it is a dual rail design. My question is how is the 12v rail distributed. Is one rail for the motherboard and cpu and the other rail for the gpu is is it more complex than that ?

Here is the description
"Pure Power 11 FM offers continuous power with two independent 12V rails for signal stability and four PCI express connectors.
It is suited to very quiet systems, for upgrading or building multimedia, gaming or systems with an overclocked high-end GPU "

Rail 1 is 32 amps
Rail 2 is 28 amps

So, even though I don't intend to wack a high end GPU in it, I am confused as to wheather adding something like a RTX3080ti which is 350w (29amps) will totally max out one of the rails or will somehow the power get drawn across both rails to balance out the power delivery ?

 

[4745454b]

32A + 28A = 60A. 60A * 12V = 720W. So right off the bat we know something is up. Rail one is setup to handle a max of 32, and rail 2 setup for its limit. But the source supplying can't max out both. This is common.

Whats also common is for this to be unknown. I've seen units get reviewed and testing show they are really one rail when it claims to be more. You'll have to look up a review of PP 11 650W and see.

 

[Vic 40]

Answer can be found here in this review at techpowerup,

be quiet! Pure Power 11 FM 650 W Review - Kill the Noise

The new be quiet! Pure Power 11 FM PSU line looks great! Besides low noise output, it also offers high performance and good build quality. The Pure Power 11 FM 650 faces strong competition from the new Corsair RM650x with ML fan, Seasonic GX-650, and XPG Core Reactor 650, though.

www.techpowerup.com

Power Distribution​
12V1​	ATX, PCIe1, PCIe2, Peripheral​
12V2​	EPS, PCIe3, PCIe4​