The chipset fan is completly pointless.
15W does not need any significant fins. However having to put real heatsinks and not chop-saw cuts in aluminium on the mainboard would “ruin” the co-designed by Fisherprice aestatic everyone has going.
I am with @MazeFrame on this.
15W is not high enough to need a fan with proper heatsink.
Gigabyte x570 AORUS Xtreme is proof of that.
But even the WS boards opt for small aluminium heatsink with fan.
I hate this form over function stupidity.
Another funny thing are mITX boards with chipset.
Why cant they build mITX with whats on Ryzen SoC?
7.1 audio, 4 USB, 1 PCIe x16 slot (x8 for APU), 2 SATA, 1 x4 or 2 x2 m.2, 10Gb NIC and WiFi 6 is possible.
But they need to waste space on chipset and active cooler and let you pay for it even when not needed.
Two examples:
Fischer ICK PEN 3 FC 22W capacity, 70x63mm area, 25mm hight
Fischer ICK PPC 51 14W capacity, 51x51mm area, 12mm hight
Both cost arround 1.50€ when buying greater 10k pieces.
Asrock has apparently released there X570 series motherboards ahead of schedule.
The spreadsheet hasn’t been properly filled in for the X570M Pro4.
Asrock’s site says it has a 10-phase, but we’ve got to wait and see what chips it’s using, or if it has doublers.
With the price of the boards, it looks like I’ll be avoiding doing an ITX build to save some money.
Asus X570 Prime-P.
Vrm info:
-
pwm: Asus own rebranded ASP1106, running in 4+2 phase mode.
4 phases for VCC and +2 phases for SOC.
With doubled up components per phase.
So it looks like an 8+4 but it certainly isn’t. -
powerstages: Vishay Sic639 50A Drmos powerstages.
-
Caps: output filtering caps Nichicon 5K / input filtering Apaq 5K.
-
Memory vrm: single phase design.
Daisy chain topolgy.
Asus Strix X570-F gaming:
-
PWM: ASP1106 running in 4+2 phase mode.
With tripple the amount of components per phase on the Vcore rail.
So it looks like a 12+2 phase design, but it definitely isn’t. -
powerstages: Vsihay Sic639 50A DRmos.
-
caps: 5K
-
Memory vrm: single phase design.
With two Vishay Sira mosfets on the highside and two on the lowside.
Daisy chain memory topology.
Asus Crosshair VIII Hero.
-
PWM: ASP1405 which is a rebranded IR32201 running in 7+1 phase mode.
With double’d up components on each phase.
So it looks like a 14+2 phase but it certainly isn’t.
Because there are no doublers used on the board. -
Powerstages: IR3555 60A.
-
caos 10K FP
Memory vrm: two phase design controlled by an ASP1103.
I see that this board has already been added to list, except for the soc part.
Wow, just what i needed. A list of B450 Mainboards that support BIOS Flashing without a CPU.
I’m eternally greatfull!
Nope but i will look at some of them myself when i have time.
And will post it in this topic.
Why does the Asus ROG Strix X570-E Gaming have 4 phases (2x2) on the SoC when the X570-F and the VIII Hero have two? What’s the logic behind this?
Probably not for any special reason. Neither of the boards is likely to be used with any APU class chip, and only the integrated graphics could use more than two well put together phases. But just in case anybody wants to go that way then the X570-E has a slight edge. Asus also “only” doubles the components though so there might well be some motherboard from another brand that has a beefier SoC VRM setup.
I couldn´t find a clear picture of the Asus X570-E Strix vrm yet.
But according to several sources the vrm is likely a 6+2 phase ASP1405 pwm,
with doubled up components on each phase.
So the soc vrm is certainly just a 2 phase.
You mean 2 true phases?
According to this it should have 4 virtual phases. And if that’s correct, it should be more efficient with the IR3553 as opposed to the IR3555 that the Hero and Formula have (I can’t imagine the SoC pulling that much power anyway).
But here’s my question: would this result in less ripple? Maybe it can allow for more stable infinity fabric overclocks… hmmm
Since Asus is kinda hating on using doublers now days.
It will be just a 2 phase.
The ASP1405 is a rebranded IR35201 which on the Asus X570 Strix - E Gaming,
is running in 6+2 phase mode.
They double´d up the components on each phase for the Vcore vrm.
So it looks like a 12+2 phase but it isnt.
The only real benefit from doubling up components on a phase,
or to be more specific running two or more powerstages per phase in paralel,
means that you increase the overall current capabillity per phase.
It doesn´t really help improving on output ripple.
Of course when you use a doubling scheme instead.
You will generally get worse transient response,
compaired to vrm´s that don´t use doublers.
But of course there are ways to fix it.
And i would also say with modern pwm´s nowdays and decent powerstages,
it generally shouldn´t really matter that much.
Back in the older days when vrm´s were running on lower swithcing frequencies,
using a doubling scheme instead of a true phase design,
had a significant negative impact on output ripple.
But yeah thats kinda old talk.
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I believe only Msi has a X570 board with a quadrupled 4 phase soc.
But i need to check out which particular one that is.
Edit: The Msi X570 Godlike that is.
But it makes totally no sense at all haha. 
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Maybe it will in the future. Some insane iGPU would be nice.
I believe that the board doesn’t even support apu’s.
Also i would like to see a stronger 2 phase soc or a 2 phase with doubled components,
on the lower range B550 board for example.
Because it makes a little bit more sense to do that on the cheaper boards.
Unless we are going to get insane apu’s with 8 core 16 threads.
Then it kinda makes sense to do this on the higher end line of X570 boards as well.
But i don’t think that most people would generally put a apu on an $300,- ish + board.
Or a $200,- ish + even.
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