No turn-on-after-power-connect in v3.50 for B450?
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=12097
Printed Date: 29 Jul 2025 at 5:32pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: No turn-on-after-power-connect in v3.50 for B450?
Posted By: Hyper
Subject: No turn-on-after-power-connect in v3.50 for B450?
Date Posted: 04 Aug 2019 at 8:30pm
Hi. I just got a new B450 Pro4. I came with BIOS v3.20, but I updated to v3.50 to fix the stuck-at-boot-screen problem I had. That went fine, but there seems to be no way to make the board turn on when I reconnect power.
In 3.20, there is an option to turn this on in "South Bridge Configuration", but this seems to be disappeared. Now both South&North bridge configuration gets replaced by a single "chipset configuration" with far fewer options. There is an option to turn back on after power loss, but that is not what I'm looking for.
I don't have a proper case, so I use a switch on my power outlet as one, and set the motherboard to turn itself on after it started receiving power. This works with 3.20 as well as my old ASRock Z87 Extreme6 and many others, but there seems to be no way to set it in 3.50. Was it removed? If so, can I request it to be added back in the future version?
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Replies:
Posted By: Ray62
Date Posted: 04 Aug 2019 at 9:23pm
You are not the first with that problem:
http://forum.asrock.com/forum_posts.asp?TID=12059&title=fatal1ty-b450-gamingitx-restore-on-ac-power-loss
Hmm, workaround with switch on by a key, if you have a PS/2 keyboard:
Advanced\ACPI Configuration\PS/2 Keyboard wakeup by: Any Key
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Under test:
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Posted By: Hyper
Date Posted: 04 Aug 2019 at 10:37pm
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Thanks Ray. I did a search before making this thread but missed that somehow. Unfortunately, I don't have a PS/2 keyboard. Hopefully, someone from ASRock sees that and add the feature back.
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