Here is a AM4 motherboard VRM list compiled by various people and testing results. Also which ones support BIOS flashing without a CPU. Not all, but most boards that will support the new Zen2 CPU’s are listed here. Just thought some info on this would be relevant, with Zen2 and X570 motherboards about to be released.
I can change the title. (DONE) I guess the TITLE was a bit much. I also found some more info on some old and new Z390 Motherboard VRM’s. and finally found what Power PAK MOSFET"s the Z390 MEG ACE is using. Asrock has a few new Z390 boards with some intersil based VRM’s.
Anyways if the vrm info on the Gigabyte Gaming X is accurate,
then that is going to be a potential fire hazard with an 12 core.
Those 4C010N’s and 4C06N’s and its layout is just terrible
They could’ve at least used 2 low side and 2 high sides on the Gaming X. They went 2 hi and 2 lo on the SOC. (WTH) another funny thing is they put the other low sides on the back of the board. The only good thing about this board is the ISL6617’s.
Buildzoid has a video about this board. lets just say its interesting.
Also not sure why Asrock went old school with Drmoss implementations.
It´s not a bad powerstage, but they are very basic.
They have likely done it for cost savings.
I would have loved to see them using Smart powerstages like IR´s / Infineon TDA´s,
or an fully ISL implementation with those 60A ISL99227B SPS powerstages on their highest end boards.
My thought’s exactly. TYC Bryan tested the Z390 Asrock Phantom Gaming 7 and it could’ve been a great board but it falls short. They didn’t use the ISL99227B’s like in the Z370 Aorus Gaming 7.
(the real Gaming 7)
There is only 1 board that does not have fan… but it does not have enough PCIe slots.
The whole AM4 is so frustrating. Always one step short for my needs.
Will have to stay on Threadripper and hope Zen2 will come shortly.
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.
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.
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.