AMD Motherboards - B450M Pro4-F - PCIE Devices Power On missing

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B450M Pro4-F - PCIE Devices Power On missing

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=16656
Printed Date: 11 Nov 2025 at 4:28pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: B450M Pro4-F - PCIE Devices Power On missing

Posted By: Jogi
Subject: B450M Pro4-F - PCIE Devices Power On missing
Date Posted: 04 Oct 2020 at 2:08pm

Hi all,

I ordered a new pre-built PC including the B450M Pro4-F board.

One of the requirements is Wake On LAN and based on the specifications this board supports that.

For whatever reason, the BIOS option 'Advanced\ACPI Configuration\PCIE Devices Power On' is not available. The manual says it must be there, the forums, etc.

The UEFI Version installed is: P2.00 (the PC was shipped with that Version, I did not make any updates)

There are only 2 Options in 'Advanced\ACPI Configuration':
- Suspend to RAM
- Deep Sleep

Any help to find/enable that option is appreciated.

Thanks in advance,
Jogi