AMD Motherboards - B450M-HDV PS/2 wakeup support?

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B450M-HDV PS/2 wakeup support?

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=11839
Printed Date: 28 Jul 2025 at 5:09pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: B450M-HDV PS/2 wakeup support?

Posted By: Ridly
Subject: B450M-HDV PS/2 wakeup support?
Date Posted: 10 Jul 2019 at 2:54pm

Hello, bios option PS/2 Keyboard S4/S5 Wakeup no function.
I have a usb keyboard.
Change another one the result is the same.
How can I solve them? Thanks

Replies:

Posted By: ASRock_TSD
Date Posted: 10 Jul 2019 at 4:11pm

Dear Ridly,

Greetings, this is ASRock TSD.

We have validated this function in our lab with a PS/2 Keyboard and it did work.

Please notice that this function only works with PS/2 keyboard, USB keyboard is not supported.

Please enter Device manager > your PS/2 Keyboard > Power management and make sure "Allow this device to wake your system" option is checked.

If PC stills no response with this feature, please load BIOS default and only set PS/2 keyboard wake to enable to verify.

If possible, please use other PS/2 keyboards to verify.

Thanks!

All the best,
ASRock TSD