RGB controller

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   Here is the solution: https://github.com/EUA/AsrLed
It's compatible with nu51_1.10 firmwared N76E885AT20 devices.

X/B450 boards are with same MCU but nu51_2.10 firmware.
Since our chips are same, you can try to downgrade your firmware with AsrLed tool that's available at Fatality Gaming B350 ITX board download section. 

http://asrock.pc.cdn.bitgravity.com/Utility/RGB/RGBLED(v1.0.41).zip

I upgrade mine to nu51_2.10 fw but AsrPolychrome doesn't work with it. So I can't debug it and downgrade back to nu51_1.10 with this command.

C:\Program Files (x86)\ASRock Utility\ASRRGBLED\Bin\wICPFLASH.exe /file=nu51_1.10

Also, at my MoBo, chip connected to SMBus address 0b20.

Ryzen >i2cdetect -l
i2c-1     unknown        SMBus PIIX4 adapter port 2 at 0b00     N/A
i2c-2     unknown        SMBus PIIX4 adapter port 1 at 0b20     N/A
i2c-0     unknown        SMBus PIIX4 adapter port 0 at 0b00     N/A

You need to update your i2c_piix4 driver.
Arch and compatible users could use:

yaourt -S aur/i2c-piix4-aura-dkms

That's all. :)

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EUA Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Oct 2019 Status: Offline Points: 5	Post Options Post Reply Quote EUA Report Post Thanks(0) Quote Reply Posted: 18 Oct 2019 at 8:52am
	Here is the solution: https://github.com/EUA/AsrLed It's compatible with nu51_1.10 firmwared N76E885AT20 devices. X/B450 boards are with same MCU but nu51_2.10 firmware. Since our chips are same, you can try to downgrade your firmware with AsrLed tool that's available at Fatality Gaming B350 ITX board download section. http://asrock.pc.cdn.bitgravity.com/Utility/RGB/RGBLED(v1.0.41).zip I upgrade mine to nu51_2.10 fw but AsrPolychrome doesn't work with it. So I can't debug it and downgrade back to nu51_1.10 with this command. C:\Program Files (x86)\ASRock Utility\ASRRGBLED\Bin\wICPFLASH.exe /file=nu51_1.10 Also, at my MoBo, chip connected to SMBus address 0b20. Ryzen >i2cdetect -l i2c-1 unknown SMBus PIIX4 adapter port 2 at 0b00 N/A i2c-2 unknown SMBus PIIX4 adapter port 1 at 0b20 N/A i2c-0 unknown SMBus PIIX4 adapter port 0 at 0b00 N/A You need to update your i2c_piix4 driver. Arch and compatible users could use: yaourt -S aur/i2c-piix4-aura-dkms That's all. :)

RattyDAVE Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Nov 2019 Status: Offline Points: 1	Post Options Post Reply Quote RattyDAVE Report Post Thanks(0) Quote Reply Posted: 24 Nov 2019 at 1:44am
	I have done some research on this and documented in https://github.com/RattyDAVE/asrock-leds/blob/master/changeled.sh This has all the funtions of the firmware in my BIOS.

brjhaverkamp Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 28 Nov 2019 Status: Offline Points: 2	Post Options Post Reply Quote brjhaverkamp Report Post Thanks(0) Quote Reply Posted: 28 Nov 2019 at 8:05pm
	Hi all, This looks like tremendous progress on the led control of Asrock MBs. I own a BM450M Pro4. Would this potentially work on this MB as well? And if so, what do I need to do to help make it work:-) I'm happy to do tests/provide traces/logs, etc. I have reasonably developed Linux skills, but little experience in debugging and reverse engineering, so I would need some pointers/instructions. My machine has both windows 10 as Ubuntu 19.10 installed Oh, and maybe some Arock person who reads this can pick up on this and help with info on the programming interface for the LED controler? Please?? This is hardly sensitive information, just the registers and adresses and their function would suffice. Kind regards, Bert

eddie55 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02 Feb 2018 Status: Offline Points: 37	Post Options Post Reply Quote eddie55 Report Post Thanks(0) Quote Reply Posted: 15 Dec 2019 at 9:04pm
	Bump for Official ASRock support for linux users using RGB

Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706	Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Posted: 15 Dec 2019 at 9:14pm
	Guys, there is no official Asrock support in this forum. If you want support, you have to create a ticket.
	Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE \| AMD Ryzen 9 3900X \| Scythe Mugen5 \| 2x16GB F4-3200C14D-32GTZ@3466 \| ASUS GeForce GTX 1080 Ti FE

brjhaverkamp Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 28 Nov 2019 Status: Offline Points: 2	Post Options Post Reply Quote brjhaverkamp Report Post Thanks(0) Quote Reply Posted: 19 Dec 2019 at 8:38pm
	Hi all, Yes, I know. It is a long shot. But sometimes the fora are monitored by support employees, so one can hope, can't he?:-) But a ticket might be worth the effort as well. Back on the topic: I am trying to get one the tools running on my Asrock B450M PRO4 With icetect -l I dont see port 1 at 0b20 unfortunately. Only 3 otherports on 0b00.(I forgot the numbers and am not at that computer right now) In the notes from RattyDAVE you have the instructions you used to update the module, I gather. #sudo pacman -S i2c-tools linux-latest-headers #yay -S --answerclean A --answerdiff N i2c-piix4-aura-dkms #this adds the 0b20 SMBus #sudo modprobe i2c_dev EUA has something similar to apply a patch from what I understand. But how do they translate to ubuntu? I couldn't quickly find the patch to the module that it is applying. Kind regards, Bert

frostmorn Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 Jun 2020 Status: Offline Points: 5	Post Options Post Reply Quote frostmorn Report Post Thanks(0) Quote Reply Posted: 23 Jul 2020 at 11:55pm
	do you have the firmware to flash this microcontroller through the programmer?