Turn off leds when PC is off
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=11517
Printed Date: 13 Sep 2025 at 8:04am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Turn off leds when PC is off
Posted By: Caruat
Subject: Turn off leds when PC is off
Date Posted: 22 May 2019 at 4:59am
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Hello everyone. I have a Z390 Extreme4. How can I make the LEDs go off when the PC is off? Thanks!
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Replies:
Posted By: ASRock_TSD
Date Posted: 24 May 2019 at 10:04am
Thank you for choosing ASRock.
Regarding your case, please disable the BIOS option [turn on onboard LED in S5].
BIOS path: Advanced > Chipset Configuration > turn on onboard LED in S5
Thank you!
Yours truly,
ASRock TSD
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Posted By: tattdogg
Date Posted: 11 Feb 2021 at 4:39pm
Hi ASRock_TSD,
I had this option disabled in BIOS and everything worked fine (Z490 Extreme4)
But then I accidentally installed beta version of ASRock Polychrome RGB app
After that LEDs are always ON.
I tried to re-disable BIOS option, uninstall beta and install stable version of Polychrome RGB app
Nothing haven't helped
Looks like beta app had updated LED controller firmware (not sure about that)
How can I fix that?
Thanks
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ASRock Z490 Extreme4
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Posted By: tattdogg
Date Posted: 11 Feb 2021 at 5:17pm
I also tried to update FW by myself
wICPFLASHADSBv2.exe /file=nu51_3.04 |
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ASRock Z490 Extreme4
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Posted By: ASRock_TSD
Date Posted: 12 Mar 2021 at 7:25pm
Hi tattdogg,
Thank you for your test and reply.
Please update the BIOS L1.61 and check the result. This BIOS should help you fully disabled the onboard LED when the system is off.
After the BIOS update, please make sure the "Turn on onboard LED in S5" is disabled. You can find this option under BIOS\Advanced\Chipset Configuration
The download link is below.
https://drive.google.com/file/d/1orl2rRV0tjFTJimZu6aGDt0_4cxMdJwW/view£usp=sharing" rel="nofollow - https://drive.google.com/file/d/1orl2rRV0tjFTJimZu6aGDt0_4cxMdJwW/view£usp=sharing
I linked the instant flash SOP as below.
https://www.asrock.com/support/BIOSIG.asp£cat=BIOS10" rel="nofollow - https://www.asrock.com/support/BIOSIG.asp£cat=BIOS10
If you have other questions, please feel free to contact us.
All the best,
ASRock TSD
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