Cannot control ADDR LED B450M Steel Legend
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=14497
Printed Date: 10 Nov 2025 at 11:53am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Cannot control ADDR LED B450M Steel Legend
Posted By: jokeUsa
Subject: Cannot control ADDR LED B450M Steel Legend
Date Posted: 26 May 2020 at 12:04pm
I mount a addressable 5V RGB LED strip on this board.
But the first 5 LED color are different the others so that I cannot control the RGB color.
No matter which RGB mode, the first 5 LED always get different than the remaining.
I have already used ASROCK polychrome tool but fail under win10.
Please advise, thank you.
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Replies:
Posted By: ASRock_TSD
Date Posted: 26 May 2020 at 7:14pm
Dear jokeUsa,
Greetings, this is ASRock TSD.
Regarding to this case, we provide some suggestions for verifying:
A.
1. Uninstall the Polychrome Utility from control panel > Program and then restart the system.
2. After booting into OS, please install the following Polychrome ver.2.0.66
https://www.asrock.com/MB/AMD/B450M%20Steel%20Legend/index.asp#Download
B.
Please refer to the following steps to flash LED firmware manually.
1. Open CMD as an administrator (type "CMD" in search bar right click & choose "Run as administrator" from the context menu)
2. Go to RGB app installation folder by typing "cd C:\Program Files (x86)\ASRock Utility\ASRRGBLED\Bin\"
3. Flash the RGB chip using the following command "wICPFLASHADSBv2.exe /File=nu51_3.04" //this will take around 30 seconds to flash the LED FW.
If the problem still persists, please clean install a fresh Windows 10 OS or use other addressable LED devices to verify.
Thanks!
All the best,
ASRock TSD
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Posted By: jokeUsa
Date Posted: 29 May 2020 at 2:52pm
Dear ASROCK,
the only way to fix my RGB problem is to reflash firmware. Good tips!!
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