AMD Motherboards - Cannot save my BIOS setting

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Cannot save my BIOS setting

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=11134
Printed Date: 06 Nov 2025 at 3:47am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Cannot save my BIOS setting

Posted By: wammaster
Subject: Cannot save my BIOS setting
Date Posted: 18 Mar 2019 at 11:22am

I create RAID mode with 2 HDD on my AB350M pro4.
And I can make sure already change to RAID mode in BIOS save change and exit.
But after shut down over 24 hours, BIOS change to AHCI mode and then not able to enter to win10.
I need to always Boot to RAID Windows.
How can I do?

Replies:

Posted By: ASRock_TSD
Date Posted: 18 Mar 2019 at 2:03pm

Dear wammaster,

Greetings, this is ASRock TSD.

Be sure you have followed the RAID installation guide page 5~10 to configure the RAID volume as a boot disk successfully.
http://asrock.pc.cdn.bitgravity.com/Manual/RAID/AB350M%20Pro4/English.pdf

If the BIOS setting will go to default value after system shutting down, the problem may relate to CMOS battery.

Please replace a new one and then verify again.

*To verify this, you can also adjust other BIOS options and observe if it will back to default value after system back from S5 or G3 state.

Thanks!

All the best,
ASRock TSD