Great writeup @Mastakilla and welcome to the forums!
Specifically which CPU were you using in the build? I don’t think you clarified on the original forum post. If you did I missed it.
I think I’ve become one of the lucky few that did run into any issues when installing my system. I’m running a 1700 with 4x8GB of Kingston UDIMMs at 2400Mhz with BIOS 3.10. I’m also running Proxmox with various VMs.
If you have any questions please let us know!
Ah yes, sorry… I forgot that I don’t have a signature here with my config 
Here it is:
OS : FreeNAS 11.2 U6
Case : Fractal Design Define R6 USB-C PSU : Fractal Design ION+ 660W Platinum
Mobo : ASRock Rack X470D4U2-2T NIC : Intel X550-AT2 (onboard)
CPU : AMD Ryzen 5 3600 RAM : 32GB DDR4 ECC (2x Kingston KSM26ED8/16ME)
HBA : LSI SAS 9211-8i HDDs : 8x WD Ultrastar DC HC510 10TB (RAID-Z2)
Boot disk : Intel Postville X25-M 160G
I’ve been having some troubles today with the ‘CD Image’ functionality inside the ‘Remote Control’ of IPMI. Although it worked flawless in the first few days, it now is unusable, as it constantly “loses” (as if it is ejected) the image. And this when trying to install the exact same image of Windows 10 on the exact same SSD, which worked perfectly about a week ago… 
I now tried at least 10 times already and then gave up and created a bootable USB with it (which has just completed its install)
Is it safe to downgrade the bios on these boards? Looking to go back to 3.10 from 3.20.
Thanks
From their techs as long as you’re in the same major branch you shod be fine. So going from 3.20 to 3.10 should be fine but you cannot go to a 1.xx release.
Does anyone know why the Ryzen Master software looks fucked up on my computer?
I suppose it may have to do with the display driver… I have no videocard, so I currently only have:
I have the issue both when connecting with remote desktop connection and when using “Remote Connect” of the IPMI.
When I search on the Asrock Rack website for drivers, I find ?! nothing ?! I already installed the x550 driver from Intel to make the NICs work and the x470 chipset drivers from AMD, but I’m not sure which drivers I need for the (non-existing?) videocard…
For what its worth, when I ran Ryzen Master in Windows 10 on the X470D4U, it looked normal. It also looked normal when running it within an unRAID VM (same Win10 installation). No discrete GPU installed. Just the onboard.
Thanks for the reply!
Do you have any driver installed? Or just the Win10 default?
Just the default driver for the onboard graphics.
Our board is now running fine for about a month. The Linux Kernel also reported two corrected memory errors so ECC works absolutely fine.
We’re still running on 3.10 with BMC 1.50. Never touch a running Asrock Rafk system.
The only issue we’re now facing:
If you open the remote control to interact with the system (in our case a Debian is booted) and reboot the system while connected to the Remote Console the System freezes during POST and the BMC isn’t rechable anymore. After replugging the power cord the server boots again.
When not having the Remote Console open the server reboots absolutely fine.
Does anybody had a similar experience with the BMC or is it fixed in 1.60/3.20?
The 3.20 Changelog states:
“Update Console Redirection function”. Are there more information about it?
That never happened to me.
| BMC Firmware Version | 1.60.00 |
|---|---|
| BIOS Firmware Version | P3.10 |
| PSP Firmware Version | 0.9.0.70 |
| Microcode Version | 08001138 |
I haven’t run Debian on there, but I’ve booted in and out of Windows and unRAID a bunch of times. (with the remote console open)
Wanted to ask if any of the other users here that contacted ASRock Rack regarding AGESA 1003 ABB or newer BIOS have received any sort of response?
The waiting with uncertainty is getting frustrating and frankly speaking I find this kind of behavior embarassing for a motherboard manufacturer.
yeah I wrote them last week to say that I couldnt do a fresh install of Fedora 30 and mentioned agesa… they didnt reply to that statement.
I also wrote them to tell them that the IPMI port stops responding to pings (webgui is down) after about a week of uptime. (running proxmox). The OS can see the ipmi device if you run: ip link or ifconfig
So maybe the OS is causing the ipmi to stop responding… idk
Because if it power it off. IPMI webgui starts working again.
Is it possible to use the aspeed vga controller for the host os (centos 8 or fed 30) and a gpu for guest vm? I’m going to give this a go just thought i would ask here first.
cheers
edit…Ok looks like i’m getting the pci header 127 error. I guess the 3.x bios is broken for pci passthrough.
Tried this on 3.20 and 3.10
edit
So i reverted the bios to 1.50 through dos and pci (gpu) passthrough is functioning as expected.
Ok, so I just learned a bit more… There is actually a Graphics Driver for this mobo. The graphics card is integrated in the BMC chip, which is an Aspeed AST2500 and you can find Windows, Linux, FreeBSD, Solaris, etc drivers for it @ https://www.aspeedtech.com/support.php
They don’t solve my issue with the Ryzen Master software though.
I’m also having trouble booting a Lubuntu USB stick with this Mobo. One issue is that the graphics driver probably missing, but I think I managed to get past that issue by adding nouveau.modeset=0 to the bootstring. But now it gets stuck on other issues 
Not much seems to work 
Has anyone got an easy solution or know which Linux flavor does easily boot with the mobo? ( I just want to do some memtesting on Linux)
Looks like you need the BIOS with the agesa ABBA fix
Write to ASRock rack support and tell them your issue.
The work around is to do the install on another machine and then connect the drive to the x470d4u MB
I managed to downgrade to 1.50 from 3.10 using the bootable dos usb method.
This got rid of the pci header 127 error and gpu passthrough is working.
Thanks.
-s
They really should get a rep on the forum @wendell you able to see if that is something we could get or if they do that type of stuff. I have seen vendors do that before (not tech)
Thanks nx2l! Which line in the output makes you conclude this?
I just mailed someone from Asrock Rack (probably sales) who did reply to me in the past… She’s on holiday though, so it might take awhile…
I got the impression that Wendell has forsaken us AM4 plebs since he is still bathing in the afterglow of Epyc 7002’s love-making.
