Intel Motherboards - Change fast boot setting under operating system

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Change fast boot setting under operating system

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=6957
Printed Date: 01 Aug 2025 at 5:28am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Change fast boot setting under operating system

Posted By: fpemud
Subject: Change fast boot setting under operating system
Date Posted: 16 Dec 2017 at 11:15am

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Generally, I can change the fast boot setting in BIOS setup menu.

But I need to change this setting under operating system, such as Linux.

There's an UEFI variable Q_ASR_QUICKON-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9 which I think is just for this.

But no matter what the fast boot setting is, this variable always read out as empty.

Is it a write only variable? what is the valid values?